Timber 2020 Industry Yearbook

INDUSTRY YEARBOOK

TIMBER 2020 KEY TIMBER TOPICS

Spotlight on sustainability Efficient off-site construction Fire in CLT buildings

TECHNICAL FEATURES

Green oak: achieving longevity Uses for modified wood Roofs, cladding, decking, flooring

INSPIRATIONAL PRIZEWINNERS Radical: the Cork House approach to prefabricated construction Resilience: Goldsmith Street and more

A TO Z TRADA members Buyers’ guide

INDUSTRY YEARBOOK

TIMBER 2020 KEY TIMBER TOPICS

Spotlight on sustainability Efficient off-site construction Fire in CLT buildings

TECHNICAL FEATURES

Green oak: achieving longevity Uses for modified wood Roofs, cladding, decking, flooring

INSPIRATIONAL PRIZEWINNERS Radical: the Cork House approach to prefabricated construction Resilience: Goldsmith Street and more

A TO Z TRADA members Buyers’ guide

TRADA Contents

07 Foreword: Leaving a sustainable legacy Nick Milestone 09 TRADA membership for the timber industry 11 Review of the year: Key events in 2019 Rupert Scott 16 University Engagement Programme: From competition to collaboration (interdisciplinary to inter-organisational) Tabitha Binding

Published in 2020 by:

22 World of wood 26 Cork House: a showcase

Spotlight on sustainability Chiltern House, Stocking Lane Hughenden Valley, High Wycombe Buckinghamshire HP14 4ND t +44 (0)1494 569600 e publications@trada.co.uk w www.trada.co.uk

30 Building with wood in a climate emergency Gary Newman 36 Timber in construction: mitigating climate change Callum Hill & Andrew Norton 44 Climate emergency: an industry response Ron Alalouff 51 Timber and the circular economy Charlie Law 56 Delivering large-scale low-carbon education buildings Christian Dimbleby 64 Timber and the resilient home Christiane Lellig

While every effort is made to ensure the accuracy of the articles included, the company cannot accept liability for loss or damage arising from the information supplied. The opinions expressed do not necessarily represent or reflect the views of TRADA or the publisher.

74 Timber design pioneers: MMC needs a long-term vision Chris Shaw

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form, by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owners.

90 Structural insulated panels: inbuilt solutions Michal Zajic & Martin Milner

© 2020 Warringtonfire Testing and Certification Ltd

117 Enabling tomorrow’s timber designers today: timber education is essential to excite, empower and inform engineering students

James Norman & Andrew Thomson

The publisher gratefully acknowledges the support of the firms whose advertisements appear in this publication. While every care has been taken in compiling this publication, the publisher cannot accept responsibility for any inaccuracies, or for the products or services advertised.

All photographs and illustrations are © Warringtonfire Testing and Certification Limited unless otherwise credited.

Production by: Open Box Media and Communications 13 Premier House, St Paul’s, Birmingham B3 1RB t +44 (0)121 200 7820 e inside@ob-mc.co.uk w www.ob-mc.co.uk We are committed to sustainable forest management and this publication is printed by Buxton Press who are certified to ISO14001:2015 Standards (Environmental Management System). Buxton prints only with 100% vegetable based inks and uses alcohol free printing solutions, eliminating volatile organic compounds as well as ozone damaging emissions.

79 Can off-site education increase productivity and address the skills shortage?

Dr Mila Duncheva 85 Providing an in-depth look at off-site timber construction Robert Hairstans 98 Mass timber for tall buildings: a new era dawns Daniel Safarik 109 When extinction is a good thing: fire in mass timber buildings Wojtek Serwatka

121 Achieving longevity in external structures: Croome Chinese Bridge

Andrew Holloway 126 Inspecting timber bridges Nick Clifford 132 Grade in Britain: enabling a wider range of home-grown species Dan Ridley-Ellis 143 Adhesive-free buildings: an update on recent research

Conan O’Ceallaigh & Dan Bradley 153 Wood health Ed Suttie 162 Reclaimed wood flooring Nick Clifford 165 Pitched timber roofs: a geometry lesson Mark Milner 172 A natural evolution: the wooden window Kevin Underwood 179 Upgrading timber joinery doors for fire resistance 195 Understanding modified wood Gordon Ewbank 202 Composite decking: what specifiers need to know Janet Sycamore 211 Exterior timber cladding – a coating conundrum Peter Kaczmar 219 External timber cladding – updated guidance Dr Ivor Davies 223 Teaching construction to first-year architecture and architectural technology students Maria Vogiatzaki 226 Get the most from TRADA membership 228 Events calendar 229 Publications 232 Addresses & websites

ISBN: 978-1-909594-83-8 Cover image: Cambridge Central Mosque.

Photo: Morley von Sternberg www.trada.co.uk

235 How to use this directory 236 Alphabetical list of TRADA members 272 Buyers’ guide index 288 List of advertisers

Timber 2020 Industry Yearbook

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TRADA Foreword

Leaving a sustainable legacy A word on the climate crisis.

T

he climate crisis has long been looming, yet it took a child speaking out to really hold us to account. By doing so, Greta Thunberg reminded us that we are the ones who are responsible for the current state of affairs and, by extension, the ones who remain in control of leaving a sustainable legacy behind us.

The role of timber Timber is vital in this legacy. We are seeing an uprising across the globe, which demands that our governments and leaders address the climate crisis – and timber is, in my opinion, the only building material that offers a real solution as the planet’s population continues to grow. We are increasingly drawn to polycentric cities, while our buildings grow taller. Now is the time for vertical timber cities, which will positively impact the quest to avert the fast-approaching climate crisis and build more housing in towns and cities that need it.

Should tall timber cities proceed, I can see many positives for the UK construction industry – among them the demand for off-site solutions. We are already seeing great success stories from TRADA members such as Swan NU build, which is using off-site constructed modular structural timber.

The evidence to support this is demonstrable: housebuilders such as Barratt Developments are acquiring companies to service their capacity – in Barratt’s case, Oregon Timber Frame; TopHat, one of the UK’s leaders of technology-driven modular housing manufacturing, is using timber in its construction; while the CLT world is consciously adapting itself to working together with light-gauge steel as a hybrid solution for flat-pack or highrise solutions.

Timber is one of the world’s oldest materials; it can be easily adapted to other materials, such as steel and concrete, along with flat-pack or modular approaches, to form part of the solution – while addressing carbon neutrality at the same time.

We are also continuing our core collaborative work with both the Institution of Structural Engineers (IStructE) and the Structural Timber Association (STA), with whom we will continue to develop joint publications that combine our strengths.

TRADA strives to listen to the demands of the market and provide authoritative publications in support of those who are specifying timber as the structural component of choice.

The past year saw the release of brand-new publications Procuring engineered timber buildings: A client’s guide and Timber design pioneers: Collaborate to innovate, plus an in-depth revision of Off-site and industrialised timber construction: Delivering quality and efficiency.

Changes to the TRADA Board Anthony Thistleton has joined the Board as Andrew Waugh of Waugh Thistleton has stepped down. This passing of the baton between Directors gives us great continuity from a passionate company, and we are grateful for the continued support.

TRADA must also give special thanks to Simon Smith, whose eight-year involvement as a Director of TRADA has now come to an end. During his time chairing the Advisory Committee, Simon oversaw the development several fantastic publications and had a pivotal role in the creation of Structural timber elements: A pre-scheme design guide. We wish him well in all his endeavours.

Challenges ahead There are admittedly still obstacles to overcome, including the fall out of issues relating to the non-use of combustible materials on external walls. However, TRADA members are adapting to these changing circumstances to ensure that timber continues to play a leading role in construction. n

Industry partnerships TRADA’s relationship with the Timber Trade Federation (TTF) has gone from strength to strength following the addition of David Hopkins to the TRADA Board of Directors. We are delighted to formally announce that the University Engagement Programme will proceed as a collaborative effort, driven by TRADA in association with the TTF. www.trada.co.uk

Nick Milestone Chairman TRADA Timber 2020 Industry Yearbook

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TRADA About us

TRADA membership for the timber industry

TRADA (the Timber Research and Development Association) is the internationally recognised centre of excellence that serves the timber and woodworking industries, their suppliers and customers.

Benefits All TRADA membership subscriptions are used to deliver high-quality benefits and services for TRADA members.

Key membership benefits include access to our technical helpline, which is manned by our team of timber experts 9–5pm Monday to Friday, and our comprehensive catalogue of technical resources intended to inform best practice on all aspects of timber design, specification and

use. These resources include Eurocode 5 design tools, online publications, printable PDFs and a detailed wood species database, supplying you with round-the-clock access to a unique, web-based library. Marketing benefits include free entries on our online Find a Supplier directory and in our annual Timber Industry Yearbook, which is distributed to 3,000 specifiers and manufacturers. n

Timber industry For companies in the production, trade or manufacture of timber or wood-based products, and suppliers of products used in conjunction with timber, such as treatments, finishes and fittings

Specifier For organisations and individuals who design, specify and/or use timber, and industry associations, local authorities and other controlling bodies

Contractor For organisations or individuals that are building contractors, housebuilders or self-builders

Designer/maker For individuals and small companies up to five people designing custom and made objects in wood for the exterior or interior of buildings or landscaping

Academic For lecturers and students on a recognised university, college or further education course

Become a member Online trada.co.uk www.trada.co.uk

Phone 01494 569603

Email membership@trada.co.uk Timber 2020 Industry Yearbook

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TRADA Review of the year

Key events in 2019

Rupert Scott delivers a round-up of TRADA’s activities from the past 12 months.

3From February to April, TRADA’s Senior Timber Frame Consultant, Robin

Lancashire, joined the National House Building Council (NHBC) on its annual touring seminar series Building for Tomorrow. He talked to attendees about timber frame and some of the common issues highlighted during site inspections by NHBC, including differential movement, trapped construction moisture and durability of timber.

3New TRADA

publication Timber design pioneers launched in March during Futurebuild. The publication, which was supported by Wood for Good, focused on the role collaboration has played and continues to play in innovation across the timber industry.

3TRADA attended Solid Wood Solutions in May, where chairman

Nick Milestone introduced the seminar programme. TRADA was especially proud to note that its members dominated the stage, and delivered a holistic and helpful view of engineered timber technologies.

4New TRADA publication

Procuring engineered timber buildings: A client’s guide was released in June.

Developed in consultation with 10 highly experienced TRADA members, the publication is a collection of realistic FAQs intended for developers who are considering engineered timber solutions for the structure of their building.

www.trada.co.uk

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TRADA Review of the year

5The Wood Awards 2019, for which TRADA processes the entries, released its shortlist in July.

4Sonae Arauco’s Three Dimensional

Fiberboard (3DF) and a research project that harnessed bio-technologies to create sequins from naturally abundant wood-derived cellulose were announced as the winners of the TRADAsponsored Timber Innovation Award at this year’s TTJ Awards ceremony in September.

The event was hosted by comedian Zoe Lyons.

3TRADA manned the Wood Awards stand at 100% Design, part of the London Design Festival in September, in a beautiful timber pavilion by Boano Prismontas.

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Timber 2020 Industry Yearbook

TRADA Review of the year

3TRADA’s Timber Focus Theatre saw high-profile names on

stage, including TV presenter George Clarke, BuroHappold’s Jonathan Roynon and Cullinan Studio’s Alex Abbey, and drew quite a crowd throughout UK Construction Week in October.

4The Wood Awards 2019 ceremony saw Cork House crowned winner of winners in November (see page 26).

6TRADA hosted the well-attended

Better Timber Buildings conference at the Royal Geographical Society in London in November. The curated programme of presentations was designed to offer a comprehensive, holistic resource for those looking to increase their timber knowledge.

3A new, revamped

edition of Off-site and industrialised timber construction: Delivering quality and efficiency was released in December, featuring additional sections on the latest technological developments and a new chapter of case studies. n

www.trada.co.uk

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TRADA University Engagement Programme

From competition to collaboration (interdisciplinary to inter-organisational) Tabitha Binding, TRADA’s University Engagement Manager, looks at the recent progress made in educating future professionals.

2019 was quite a year with lectures, talks, competitions, live builds, shows and learning experiences. The interest in timber construction projects is rippling into academia with a real enthusiasm from students and lecturers to learn more about timber and timber products.

The focus of my job is to engage, enthuse and educate our future professionals, #TomorrowsTimberTalent, and those who teach them. This is made possible by the TRADA Board and its members. It is further supported by sponsors and individuals that have provided finance, materials, facilities and visiting opportunities. I’d like to say a huge thank you to you all; we are beginning to make a difference.

Photo: Ross Waddoups

Photo: WeiSing Lau

5 London Festival of Architecture 1–30 June, Oxo Tower Wharf, London

5TRADA University Challenge 2019 8–9 February, Diamond Building, Sheffield

Brief: Healthy student accommodation Major sponsors: Timber Trade Federation (TTF) | STEICO Sponsors: Stora Enso Supporters: PEFC UK | Wood for Good | University of Sheffield Judges: Alex Abbey, Cullinan Studio | Kieran Walker, Waugh Thistleton Architects | Patrick Usborne, dRMM | Jaffel Versi, Arup | Ricardo Candel, AKT II | Tom Harley-Tuffs, Ramboll | Olly Booth, Gardiner & Theobald | Stephanie Crewe, Land Use Consultants Participants: 60 students from 27 universities studying architecture, architectural technology, landscape architecture, engineering and quantity surveying

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Timber 2020 Industry Yearbook

Brief: Boundaries Sponsors: Champion Timber Supporters: Bartlett School of Architecture | Institute of Carpenters | Building Crafts College | TTF Collaborators: Coin Street Community Builders and Oxo Tower Wharf | TRADA | Champion Timber | 0-DACE | Michael Williams Designs Participants: Momentto – Jennifer Ge, The Bartlett, UCL | Binhan Wang, Architectural Association School of Architecture | Yue Ying, University of Cambridge | Mandy Hong, University of Nottingham | Jiaxin Wu, University of Sheffield

TRADA University Engagement Programme

3Anglia Ruskin University May–June, Chelmsford

Brief: 1:1 pavilion – design and make Sponsors: UPM I Meyer Timber | Hoppings Softwood Products | EATTA Collaborators: Anglia Ruskin University | TRADA | EATTA | Grymsdyke Farm Participants: first-year joint cohort of architecture and architecture technology students

6 Performing Togetherness

6–28 July, R-Urban Poplar and Tate Exchange Photo: Jim Stephenson

Sponsors: SCA Wood Industrial Solutions | Huws Gray Ridgeons Collaborators: Public Works | TRADA | Champion Timber | Umeå School of Architecture Participants: 20 architecture and design students

4 Studio in the Woods

11–14 July, Ruskin Land, Wyre Forest

Photo: Jim Stephenson

Brief: Learning outside the framework of conventional academic institutions and tests ideas through making at 1:1 scale Sponsors: Scottish Forestry | TRADA Collaborators: Piers Taylor | Kate Darby | Meredith Bowles | Gianni Botsford | plus a host of architects and engineers Participants: via competition for sponsored places – Joe Tompkins, University of Cambridge | Ruth Cullen, University of Liverpool | Tom Cunningham, University of Sheffield | Paul Smith, University of Coventry www.trada.co.uk

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TRADA University Engagement Programme

Photo: Chris Leung

Photo: Sarah Lever

5London Design Festival and Fifteen September, Oxo Tower Wharf, and 4 –13 December, 22 Gordon St

Brief: Reciproci-Tree – explores the possibilities of self-supporting reciprocal timber structures, combining digital design with CNC machining and multi-axis robotics Sponsors: James Latham Collaborators: Oxo Tower Wharf and Coin Street Community Builders | TRADA | UCL Participants: Fabrizio Tozzoli and Alfredo Ferrer M.Arch in Design for Manufacture at the Bartlett School of Architecture, UCL

3Who Teaches the Teacher?

EATTA – Vida, Sweden.

Sponsors: EATTA | VIDA | TRADA Participants: Aftab Jalia, architecture – University of Cambridge | Rob Foster, engineering – University of Cambridge | Richard Longstaff, architectural technology – Anglia Ruskin University | Terry Connolly, carpentry – Bedford College www.trada.co.uk

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Bookshop Getting started with guides from the experts at BM TRADA

Expertise in timber design and construction from the official publisher for TRADA

Order online at http://bookshop.bmtrada.com

@TRADABooks

TRADA University Engagement Programme

4 Who Teaches the Teacher?

WTTA – Binderholz, Austria

Sponsors: WTTA | Binderholz | TRADA Participants: Aled Davies, Cardiff University | Andrew Thomson, University of Bath | Greg Workman, NPTC Group of Colleges | Joshua Mudie, University of Bristol | Martin Gillie, NMiTE

Photo: Mark Wayne Probert

Additional partnerships We are also working with KnoWood, an Erasmus+ Knowledge Alliance for Sustainable Mid-Rise and Tall Wooden Buildings, looking at what future knowledge and educational provision is necessary to teach future professionals and how to best provide it. The partners involved are: • UK – TRADA and University of Westminster • Denmark – via University College, Danish Technical Institute • Spain – Universitat Politècnica de Catalunya, BarcelonaTech, HOUSE HABITAT • Lithuania – Vilnius Gediminas Technical University, Study and Consulting Center, Registru centras, Idea Statika • Canada – The Southern Alberta Institute of Technology.

• NPTC Group of Colleges • University of Bristol • University of Reading • University of Nottingham • Loughborough University • UEL

Collaboration As we contemplate climate change, our future environment, doing more and better with less, TRADA enters into an agreement with the Timber Trade Federation to provide joint academic and regional engagement; inter-organisational delivery.

Institution of Carpenters – City Hubs is an initiative working with colleges to raise the awareness of routes into timber professions across the built environment.

#LearningHandsOn will be our focus in 2020. How can you design, specify or build well with timber if you have never handled or worked with it? If you want to get involved, I would love to hear from you. n

New academic members

About the author

A huge welcome to all who joined TRADA in 2019: • University of Birmingham • De Montfort University Leicester • UWE Bristol • University of Hertfordshire • University of Westminster • Cardiff University • The Bartlett, UCL • Anglia Ruskin University • Leeds Beckett University www.trada.co.uk

Tabitha Binding University Engagement Manager TRADA

Further information Visit www.trada.co.uk/academic or email tbinding@trada.co.uk Timber 2020 Industry Yearbook

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Timber structures Wood gallery

World of wood

A look at some of the innovative uses of structural timber over the past year.

Photo: Moelven

3World’s tallest timber tower

Mjøstårnet in Norway is a 85.4m-high tower built using crosslaminated timber (CLT).

The 18-storey mixeduse building contains apartments, a hotel, swimming pool, offices and a restaurant. Even the elevator shafts are made entirely from CLT and the columns are made from glued laminated timber (glulam).

For more information, go to www.ctbuh.org.

See also p98.

Flat-pack housing4 U-build is a simple modular system that allows anyone to self-build their own home.

Components are slotted together like a jigsaw puzzle to assemble a building frame and can be easily dismantled, recycled or reused at the end of the building’s life. Every component is produced off site by CNC fabricators before being transported to the construction site where a small team of people can construct the building using simple hand tools. For more information, go to www.studiobark.co.uk

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Timber 2020 Industry Yearbook

Photo: Lenny Codd

Timber structures Wood gallery

Photo: Morley von Sternberg

5Cambridge Central Mosque Glulam and CLT have been used to create a calm oasis of contemplation. The 30 ‘trees’ create an overall impression of stillness, quiet and focus in this first purpose-built mosque in Cambridge. Timber was chosen for its natural, warm and calming qualities.

Winner of the Wood Awards 2019 Education and Public Sector category and Highly Commended in the Structural Award category, more information can be found at www.woodawards.com

3Social housing scheme

Photo: Tim Crocker

www.trada.co.uk

Winner of the RIBA Stirling Prize in 2019, Goldsmith Street in Norwich comprises 105 low-energy homes and is considered to be a ground-breaking project.

The homes have been designed as an affordable high-density alternative to apartment blocks. Each home is south facing to maximise solar gain and meet Passivhaus standards.

For more information, go to www.architecture.com Timber 2020 Industry Yearbook

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Timber structures Wood gallery

Photo: Stanton Williams

5Royal Opera House transformation Striking a balance between heritage and 21st-Century life, this transformation reimagines the home of ballet and opera. With improved access and transparency, the subtle timber elements offer a warm welcome. Lights, acoustic insulation and sound equipment are integrated within the timber. Winner of the Wood Awards 2019 Commercial and Leisure category, more information can be found at www.woodawards.com

4Battersea Arts Centre, London

Following a fire that destroyed the roof of this Grade II listed building, a contemporary plywood lattice follows the curvature of the original structure. The new ceiling is constructed of three layers of 18mm-thick birch-faced plywood. Winner of the Wood Awards 2019 Interiors category, more information can be found at www.woodawards.com

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Timber 2020 Industry Yearbook

Photo: Philip Vile / Haworth Tompkins

Timber structures Wood gallery

Chilean chapel4 In the summer of 2019, more than 500 university volunteers travelled to different locations in Chile to build 15 chapels to provide meeting and prayer spaces for people in small and vulnerable communities.

The thoughtful design features a rigid gable frame and the thickness of the pillars and trusses allow variations so that the chapel model can be adapted to each specific site. For more information, go to www.archdaily.com

Photo: Nico Saieh

3Push-Pull House, Amersham

With an open and light interior created by splitting this house into sections, the exterior remains in keeping with the area’s protected 1930’s architecture. Made from CLT, the interior timber has been left exposed.

For more information, go to www.cullinanstudio.com n

Photo: Jim Stephenson

www.trada.co.uk

See page 26 for the Wood Awards’ Gold Award winner, Cork House.

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2019 Wood Awards winner Cork House Completion date: January 2019 Building type: Private house Location: Eton, Berkshire Architect: Matthew Barnett Howland with Dido Milne and Oliver Wilton Executive architect: MPH Architects Client: Matthew Barnett Howland and Dido Milne Structural engineer: Arup M&E consultant: Arup (Fire) Main contractor: Matthew Barnett Howland assisted by M&P London Contractors CNC machining: Wup Doodle, Norfolk Joinery: Whyte and Wood, Nic Rhode Furniture, Tom Graham Workshop Timber supplier: NFP Europe Ltd Timber elements: Structure, walls, floor, pyramid roofs, windows, doors, internal joinery Timber species: PEFC- and FSC-certified western red cedar, spruce CLT, American white oak, Cradle to Cradle Gold Certified Accoya (Radiata pine). Cork oak bark (Quercus suber), Portugal FSC-A000503

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PEFC/16-44-002

Timber 2020 Industry Yearbook

Timber structures Wood Awards winner

Cork House: a showcase Winning both the Gold Award and the Private Award in the 2019 Wood Awards, Cork House demonstrates a radical approach to prefabricated construction.

A

rchitects, Matthew Barnett Howland, Dido Milne and Oliver Wilton, set out to re-think a building from first principles, considering each stage of its life, including whole-life carbon, material life-cycle and design for disassembly.

They examined alternatives to the complex assemblies of composite materials that make up modern wall systems.

Could a single solid material be used as an alternative? Their research led them to expanded cork, a bio-renewable material with a remarkably sustainable life cycle. In its solid form, it integrates structure, insulation, external and internal finish.

The walls and the five corbelled roof pyramids of Cork House are made of monolithic cork blocks, solid from inside to outside, which interlock so they can be built without mortar, glue, insulation, plaster or render. The system is carbon negative, designed for self-build assembly, and at the end of the building’s life the cork can be re-used.

Working with nature It is an innovative building, but one that also had to respect the idyllic and historic context of its site. Its home is the riverside garden of a Grade II-listed 19th-Century mill house, purchased a decade ago by Howland and Milne, who became not only architects but also clients and builders. The house nestles amid mature trees and acts as a gateway into a walled garden. It is linear in plan, 18m long, and consists of five bays, each topped with a pyramidal roof. The cork blocks that form the pyramidal roofs are clad with cedar weatherboards and rainwater is discharged via copper-lined valleys and copper rainwater goods.

The first bay, the threshold between the two gardens, creates a space for sheltered outside living; the next bay is an entrance foyer and a generous bathroom with a sleeping loft above it. Two further pyramidal roofs enclose a kitchen/living >> www.trada.co.uk

Photo: Ricky Jones

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Timber structures Wood Awards winner

room, with a bedroom in the final module beyond.

Inside the house, the exposed cork walls are warm to the touch and create a rich sensory environment involving touch, sound and even smell.

As Howland explains: ‘The resultant architectural form is new and yet familiar, a progressive reimagining of ancient structures and simple construction principles that considerably exceeds contemporary building performance requirements. With a focus on what is solid, simple and sustainable, the project is also an innovative response to some of the complexities and conventions of modern building practices.’

The use of cork Expanded cork is a material with a unique and traditional ecological origin. Mediterranean cork oak forests, grown for centuries to make wine stoppers for local vineyards, are landscapes that are rich in biodiversity. The bark of the cork oak is harvested every nine years without felling, harming the trees or disturbing the forest. Expanded cork is manufactured from the waste product of the harvest. In addition, expanded cork has superb thermal performance, is excellent in compression and is entirely bio-renewable.

Photo: Ricky Jones

The Cork House project used an evolved version of a cork construction system researched and developed from 2015 to 2018 by MPH Architects, the Bartlett School of Architecture UCL, University of Bath, Amorim UK and Ty-Mawr, with subcontractors including Arup and BRE. The research explored design hypotheses and prototypes, and built constructional models to scale.

A robotic milling technique was developed at the Bartlett to shape the cork blocks. Test panels were laboratory-tested to address a range of performance criteria, with the University of Bath focusing on structural testing and BRE undertaking fire performance and rain tightness testing. A small prototype building was created and monitored to help establish performance through the seasons under real weather conditions.

The research was part-funded by Innovate UK and EPSRC under the 2015 Building Whole Life Performance funding competition. It established the viability of the cork construction system for a range of applications, and de-risked the system sufficiently for application on its first live project.

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Timber 2020 Industry Yearbook

Photo: Magnus Dennis

Timber structures Wood Awards winner

Construction The construction was designed as a prefabricated kit-ofparts. The blocks of expanded cork (1,268 of them) were CNC-machined offsite using a digital machine-cutting process that could produce a block every five minutes. The blocks are generally Photo: David Grandorge 1m x 500mm in size and light enough to be assembled on-site by hand. They are profiled so that they interlock in both plan and section with friction-fit joints, without the use of mortar or glue. The blocks are supported at ground-floor level on an Accoya ring beam and spruce cross-laminated timber (CLT) floor panels, which, in turn, transfer all loads to 14 removeable steel screw pile foundations.

The cork wall structure is in pure compression and all lateral loads are taken through an Accoya ring beam and valley beams, both integrated into the cork block structure at eaves level. Accoya lintels combine with the eaves ring beam to form a U-beam over window and door openings.

The five quadrilateral pyramid roofs were made using the same principles of interlocking joints, but each block is corbelled in from the one below, creating a series of five truncated pyramids, each surmounted with a triple-glazed roof light fixed to an Accoya frame. Accoya is used for structural beams, windows, doors and steps, and two sets of smaller Accoya ring beams are incorporated into each roof pyramid to stiffen the centre of the roof planes, providing support during assembly without falsework, and regulating the roof geometry.

The CLT floor panels are finished with un-planed crosssawn oak floorboards (screwed rather than nailed for ease of disassembly). All internal built-in joinery is made from spruce Tilly board and loose furniture is made from reclaimed spruce CLT boards.

Extensive testing resulted in minor modifications. To improve airtightness, a 10mm rebate for a removable foam insert was incorporated into the joints, and the external sloping surfaces of the cork corbels that create the pyramids were lined with western red cedar weatherboards, which drain rainwater into copper-clad valleys between the pyramids and discharge into a series of copper gutters. As part of the fire engineering scheme, Class 0 fire-rated western red cedar was used to line the rear facade externally, and sprinklers were installed internally to avoid any internal coating or lining of the cork.

The cork blocks and all other connections are mechanical and accessible, and the whole house is ‘designed for disassembly’ so that the cork can be re-used at the end-ofbuilding-life as either biological or technical nutrients. This innovative and radically simple form of biogenic construction is carbon negative at completion and has exceptionally strong whole-life performance, including estimated whole-life carbon emissions of 618kg CO² eq/m². n

Awards RIBA Stirling Prize 2019 – Shortlisted RIBA Stephen Lawrence Prize 2019 – Winner RIBA National Award 2019 – Winner RIBA South Sustainability Award 2019 – Winner RIBA President’s Awards for Research 2019 – Shortlisted The Manser Medal: AJ House of the Year – Shortlisted The Wood Awards 2019 – Gold Winner, Private Winner, Structural Award Highly Commended

Further information Photo: David Grandorge

www.trada.co.uk

For further information and to download the complete case study, go to www.trada.co.uk/casestudies Timber 2020 Industry Yearbook

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Timber structures Spotlight on: Sustainability

Building with wood in a climate emergency

Gary Newman discusses how the use of timber in construction should be increased to mitigate the effects of climate change.

Wall panels made from Welsh timber by Williams Homes Ltd. Photo: Rosie Anthony

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Timber 2020 Industry Yearbook

Timber structures Spotlight on: Sustainability

“Without increased and urgent mitigation ambition in the coming years, leading to a sharp decline in greenhouse gas emissions by 2030, global warming will surpass 1.5°C in the following decades, leading to irreversible loss of the most fragile ecosystems, and crisis after crisis for the most vulnerable people and societies.”

T

he above quotation is taken from the special report Global Warming of 1.5°C, published by the Intergovernmental Panel on Climate Change (IPCC) in 2018. The report makes the point that, while keeping global temperatures below 1.5°C above pre-industrial levels is technically feasible, it would take unprecedented transformation of all aspects of our society.

This report made headline news in October 2018, but only for one day. It was only after the report was ‘translated’ into plain English, by the then unknown teenage Swedish climate activist Greta Thunberg, that the world started to take note.

The UK Government, devolved administrations and many local authorities have now declared a climate emergency.

Now that climate change denial is finally off the table, there is the political space for all sectors of society to focus on the rapid mobilisation of solutions. This is where plantation forestry and the use of timber in construction come to the fore.

Mitigating carbon emissions with timber Given that one-third of global carbon emissions is related to deforestation (the other two-thirds due to the release of carbon dioxide from fossil fuels), it is no surprise that one of the solutions to counteract climate change is to plant trees.

Trees are nature’s carbon capture and storage solution. In fact, photosynthesis is the only proven system for atmospheric carbon removal and storage.

A recent report The Global Tree Restoration Potential 1 describes the potential for trees to tackle climate change. Growing trees to lock up carbon is one thing, but if we then use those trees in housing construction, the benefit is increased. Research funded

by Woodknowledge Wales indicates that the carbon benefit from afforestation can be doubled over 100 years if we grow and process the timber for the construction market.

Timber, when used in construction, has two main benefits.

First, timber products are typically lower embodied carbon (the carbon released in extracting, transporting and manufacturing) than other products and therefore displace high-carbon materials. Steel, cement, plastic and glass are the wonder >> www.trada.co.uk

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Equally, construction policy does not favour the use of wood over other materials.

Approximately 50% of the carbon emissions from housing over a 60year life is related to the construction products and process (embodied carbon emissions), and is thereby emitted at the time of construction. The other 50% is due to operational carbon emissions – regulated (heating and lighting) and unregulated (appliances).

Pontrailas Sawmill stackes of timber for construction. Photo: David Hedges

materials of the past century – but their high embodied carbon means that they are unlikely to be considered so appropriate to the needs of the 21st Century.

‘We’re going to introduce legislation to ban the glass and steel skyscrapers that have contributed so much to global warming.

They have no place in our city or on our earth anymore’ – Bill de Blasio, Mayor of New York City (April 2019).

Second, when timber is used in construction, the biogenic carbon creates a store in the built environment. This store can be increased if wood is used not only for the structure but also for insulation, and internal and external joinery. It is the expansion of this store that can double the carbon storage benefit of afforestation.

Policy and regulation This should make growing trees and using wood in construction a go-to solution. However, as yet there are no government policies in place to make this happen. For example, in Wales there is a forest cover of 15%, which is substantially less than half the European average. In 2018, farming in Wales received a subsidy of £300m and forestry £1m. This goes some way to explaining why there has been no new tree planting in Wales over the past five years.

Despite the lack of Government support for forestry, it is still worth more to the Welsh economy than agriculture.2 www.trada.co.uk

It is time for construction policy and regulation to tackle the carbon emissions caused by building materials.

Targeting net-zero whole-life carbon would encourage Passivhaus levels of energy performance alongside the use of low-carbon materials such as wood. Net zero could be achieved by offsetting remaining emissions through funding tree planting to create a virtuous circle.

This is easy to say (or write), but making it happen is something else. The IPCC describes the need for unprecedented transformation3 and climate emergency declarations have been made by the majority of UK Local Authorities, both the Welsh and Scottish Governments and the UK Parliament. But there are lots of barriers to change. A few of those across Wales are shown below.

• Resistance to land-use change resulting in, for example, continuation of environmentally degrading and sub-economic activity such as grazing, or favouring a nostalgic backwardlooking preference for ‘native’ tree species rather than creating resilient and productive plantation forestry. Each one of us in the UK is responsible for the consumption of approximately 1m3 of timber per year and yet the UK produces timber at a rate of only 0.2m3/year per capita. The UK is already the second largest importer of timber in the world after China and global demand is set to at least treble by 2050.

• Building policy and regulations continue to be materially agnostic despite steel and cement accounting for 50% of the UK’s industrial carbon emissions. When it comes to energy, policy correctly favours renewables over fossil fuels. >> Timber 2020 Industry Yearbook

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• Carbon-illiterate planning authorities want to see traditional vernacular and car-dominated housing developments.

Local Authorities are also starting to step up. Powys County Council has:

• Procurement rules don’t allow for the nurturing of new lowcarbon supply chains.

• Approved a Wood Encouragement Policy, which commits to building with timber and to using the local timber supply chains.

Action in Wales

• Commissioned Woodknowledge Wales and consortium partners, including TRADA, Cardiff Met University and Coed Cymru to deliver the Home-Grown Homes Project – an EU- and Welsh Government-funded research project to explore and recommend actions to overcome barriers to the transformation of the Welsh timber construction supply chain (www.hgh.cymru).4

Although starting from a low base in Wales, change is afoot: • The Welsh Government has embraced the radical plan (Zero Carbon Homes – Actions to Integrate Welsh Forest Industries with Modern Methods of Construction) to transform the timber construction supply chain and turn Wales into a high-value forest nation.

• Industrial and economic policy is increasingly targeting foundational economic growth, which means a focus on not just the shiny and new, but on the basic services, such as housing and its supply chain.

It is these foundational economic activities that have the biggest impact on the quality of people’s lives, if not on overall GDP growth.

In terms of Woodknowledge Wales membership, an increasing number of its housing association members are committing to building with wood and seeking to support the development of local timber supply chains. This is helping to stimulate activity in the SME-dominated timber supply chains and, over time, this can be expected to lead to the creation of meaningful additional employment, particularly in rural areas.

On the global scale, these actions are of course small. But growing trees and building with wood will certainly help the UK Government meet its legally binding carbon targets and demonstrates global leadership in the fight against climate change. n

About the author

Gary Newman Chief Executive Woodknowledge Wales

Further information For further information, visit http://woodknowledge.wales

Further reading • WIS 2/3-58 Sustainable timber sourcing, BM TRADA, 2019 • WIS 2/3-67 Specifying British-grown timbers, BM TRADA, 2017

References

Making a wall panel. Photo: Rosie Anthony

www.trada.co.uk

1. Bastin, J. F. et al., The Global Tree Restoration Potential, 2019 2. Brexit and our Land, Welsh Government consultation, 2018 3. www.ipcc.ch/sr15 4. More information on the Home-Grown Homes Project can be found at https://woodknowledge.wales/prosiect-cartrefi-obren-lleol-home-grown-homes Timber 2020 Industry Yearbook

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Timber in construction: mitigating climate change

Timber as a construction material offers many opportunities for mitigating the impacts of climate change. Callum Hill and Andrew Norton explore the targets and challenges ahead for the construction sector.

Most of the carbon of the terrestrial biosphere is stored in forests.

Photo: Callum Hill

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“As energy sources are set to decarbonise, and with tighter building regulations in terms of building performance, the focus is being drawn towards the significant potential for implementing climate change mitigation actions by choosing construction materials with the lowest environmental impact.�

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here is an increased use of timber in the UK construction sector and, according to the Structural Timber Association, timber frame systems accounted for more than a quarter of housing starts in 2016.1 There is an urgent need to reduce carbon emissions within construction to contribute to national greenhouse gas (GHG) abatement targets. The target of the UK Construction Sector Deal is a 50% reduction in carbon emissions by 2025, which will require reductions in both operational and embodied emissions.2 The Intergovernmental Panel on Climate Change (IPCC) estimates that, globally, the building sector is responsible for 40% of primary energy demand and 36% of energy-related CO2 emissions in industrialised countries.3 However, this only takes account of operational energy and does not include embodied energy and GHG emissions associated with the materials used in construction.

As energy sources are set to decarbonise, and with tighter building regulations in terms of building performance, the focus is being drawn towards the significant potential for implementing climate change mitigation actions by choosing construction materials with the lowest environmental impact.

According to the International Energy Agency, the building sector has one of the lowest GHG mitigation costs. By increasing the use of timber in construction, it is possible to mitigate climate change with no cost penalty or even with cost reductions.

Carbon sequestration Atmospheric carbon is accumulated in living biomass through the process of photosynthesis. Most of the carbon of the terrestrial biosphere is stored in forests, which contain about 86% of the above-ground biogenic carbon and 73% of the carbon stored in the soil.4 Boreal forests store about one-third of the global terrestrial biogenic carbon. Although global carbon stocks in forests are decreasing by 1.1 thousand million tonnes (Gt) per year, in most European countries the forest utilisation rate (fellings as a percentage of the annual increment) is less than 100%. This means that the carbon pool in European forests is increasing in size, with the sink being about 365 million tonnes of sequestered CO2 per year; equivalent to 7% of annual EU emissions. >> www.trada.co.uk

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Increasing fellings can improve the carbon sequestration potential of these forests. Photo: Callum Hill

With the current rate of timber harvesting in Europe, managed forests will move into older age classes and the net increment of wood material will consequently decline. This provides an opportunity for increasing fellings to improve the carbon sequestration potential of these forests. The best approach will prove to be a ‘mixed’ strategy, where some areas are optimised for timber production and others for biodiversity and amenity benefits. This is an activity that generates income and employment and also mitigates climate change.

The use of biomass in the built environment represents a stable and easily accountable way of storing atmospheric carbon for long periods of time, creating a new carbon pool.

The substitution of other building materials, which often have a higher carbon footprint, brings additional benefits. If forests are not harvested, it is self-evident that no forest products will be produced, which consequently requires their replacement with more energy- and carbon-intensive materials. In addition, the potential for energy production from the by-products of harvesting and processing and wood waste at the end-of-life cycle is lost.

Recognising carbon storage in the built environment The role of harvested wood products in mitigating GHG emissions has been recognised by the Kyoto Protocol since www.trada.co.uk

2009, when the 15th Conference of Parties of the UN Framework Convention on Climate Change in Copenhagen agreed that harvested wood products (HWPs) could be included as an additional carbon pool.

For the first commitment period of 2008–2012, it was assumed that the amount of carbon leaving the HWPs pool every year was equal to the annual inflow (instantaneous oxidation). This means that, although a considerable quantity of atmospheric carbon may be stored in the wood products pool, this amount is assumed to be stable over time and there is therefore no net benefit in terms of mitigation potential. For the second commitment period (2013–2020) the carbon accounting included carbon stock changes in the HWP pool.

Although the IPCC recognises the importance of the built environment, its mitigation strategies listed in the fourth and fifth assessment reports are almost exclusively concerned with energy consumption. The use of wood as an example of a low embodied energy material is mentioned, but there is no consideration given to the potential for timber and other plant-derived products to act as carbon stores in the built environment. The use of mitigation strategies associated with forestry is only concerned with bioenergy and does not discuss the sequestration potential of timber products. However, the Conference of the Parties to the >> Timber 2020 Industry Yearbook

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Kyoto Protocol in Copenhagen in 2009 did recognise the importance of including timber products as carbon sinks and the 2011 Durban and 2012 Doha conferences stated that carbon stored in wood products should be integrated into reporting procedures.

Climate change mitigation benefits of timber The use of HWPs in long-life products allows for the carbon storage benefits of timber to be extended beyond the forest.

The benefits of using HWPs are not just limited to carbon storage, but also because they can be a substitute for materials that have a higher embodied energy and/or global warming potential. Finally, the use of harvesting/processing residues and end-of-life timber as a source of energy brings additional benefits when substituting fossil energy sources.

A more recent report (2018) of the potential climate change mitigation benefits of using timber in construction in the UK was published by the Committee on Climate Change (CCC) – ‘Wood in Construction in the UK: An Analysis of Carbon Abatement Potential’.5 This study (undertaken by the Bangor University BioComposites Centre, JCH Industrial Ecology and Renuables Ltd) showed that:

• Even with conservative estimates, increasing the number of houses constructed of timber to 270,000 by 2050 would deliver an annual reduction in carbon emissions by around 0.8 to 1.0 million tonnes (Mt) carbon dioxide equivalents (CO2e) by substituting for higher embodied energy and embodied carbon building materials.

• The carbon storage in the fabric of the timber buildings amounted to an additional 1.0 to 1.3 Mt CO2e per annum.

• For individual buildings, the substitution of timber for masonry resulted in the reduction in embodied CO2 emissions by about 20%, whereas using CLT instead of reinforced concrete for construction of multiple occupancy dwellings led to a massive 60% decrease in embodied CO2 emissions.

Most importantly, these climate change mitigation benefits can be realised with almost zero abatement costs, because of similar costs for the different types of construction. From the point of view of reporting these benefits as attributable to the national carbon accounts, it was estimated that it was possible to source 86% to 92% of the timber construction material in the UK. However, given that at present only 20% of construction timber is currently sourced from the UK and that only 35% of >>

More forest planting is urgently required. Photo: Callum Hill

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sawn timber and sheet material is currently derived from the UK resources,6 there is clearly a large gap between what might be theoretically possible and what can be achieved in the short, or even medium, term. More planting is urgently required.

Dr Andrew Norton Director Renuables Ltd

Future goals Achieving the proposed targets will be challenging and requires the construction sector to reduce both operational and embodied carbon emissions. These targets include: • HM Government Construction Sector Deal 50% reduction target.

• CCC and the World Green Building Council proposed ‘net zero’ target by 2050.

There is a massive challenge ahead for the UK construction sector, but the home-grown timber industry is more than capable of meeting that challenge. However, this will need a massive increase in new planting to meet the increased demands on timber resources, Confor have stated that 40,000 hectares of new woodland needs to be planted every year to make a substantial contribution to carbon reduction and 260,000 hectares a year to achieve a zero carbon Britain.7 Although, in principle, the majority of timber requirements of the UK construction sector could be met by home-grown timber, it must be recognised that markets already exist for much of this timber; albeit often with shorter product lifetimes and a commensurate reduction in carbon storage benefits.

Any timber shortfall must consequently be met by exports, for which no credit is given in the UK carbon accounts. n

About the authors

Professor Callum Hill Director JCH Industrial Ecology Ltd

Professor Callum Hill was Senior Lecturer in Wood Science at Bangor University from 1994 until 2007 and then The Edinburgh Research Partnership Professor of Renewable Materials from 2007 to 2013. He has been Director of JCH Industrial Ecology Limited since 2010. He has authored more than 200 research papers, two textbooks and seven book chapters. He is a visiting researcher at the Norwegian Institute of Bioeconomy Research (NIBIO) in Ås, Norway, and a global expert at the InnoRenew Centre of Excellence in Koper, Slovenia. He is a Fellow of the Institute of Materials, Minerals and Mining. www.trada.co.uk

Dr Andrew Norton is a highly experienced life-cycle assessment practitioner and consultant with a wealth of knowledge of sustainable materials. While providing LCA and Carbon Footprinting advice to major international clients, he has also worked on assessing and developing many agricultural and forestry derived products. His recent clients include: the European Commission, Marks & Spencer, Saint Gobain, the Belgian Federal Government, UPM Tillhill, DECC, Imperial College and the World Bank.

He is a consultant for CEI Bois and sits on CEN/TC350, representing the timber industry.

References 1. Structural Timber Association Annual Survey of UK Structural Timber Markets, 2016. Available at: www.structuraltimbermagazine.co.uk/news/sta-annualsurvey-of-uk-structural-timber-markets 2. HM Government, 2018. Available at: www.gov.uk/ government/publications/construction-sector-deal 3. Intergovernmental Panel on Climate Change (IPCC), Fifth Assessment Report, Cambridge University Press, 2014 4. Hill, C., Zimmer, K., The Environmental Impacts of Wood Compared to Other Building Materials, NIBIO Rapport, 4(56), 2018. Available at: https://nibio.brage.unit.no/nibioxmlui/handle/11250/2496052 5. Spear, M., Hill, C., Norton, A., Price, C., Wood in Construction in the UK: an Analysis of the Carbon Abatement Potential, Report reference BC-1383-2018ES, 2019. Available at: www.theccc.org.uk/publication/ wood-in-construction-in-the-uk-an-analysis-of-carbonabatement-potential-biocomposites-centre 6. www.forestresearch.gov.uk/tools-and-resources/statistics/ forestry-statistics/forestry-statistics-2019 7. www.confor.org.uk/media/247403/woodland-carbontargets-for-the-uk-april-2019.pdf

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Climate emergency: an industry response

Ron Alalouff examines the role of architects and engineers in specifying timber in buildings to help mitigate the worst effects of climate change.

Architects in London declaring a climate emergency.

Photo: UKGBC

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“According to the UN, building construction and maintenance uses around one-third of the world’s energy, and produces around one-quarter of the planet’s greenhouse gases. However, using timber in construction can significantly reduce this impact.”

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rchitects and other industry professionals are responding to increasing evidence of the potentially catastrophic effects of climate change. In 2018 the UN Intergovernmental Panel on Climate Change (IPCC) warned that human-caused emissions of carbon dioxide would need to fall by around 45% from 2010 levels by 2030. Only by limiting global warming to 1.5°C instead of 2.0°C above pre-industrial levels would the worst-case scenarios of climate change be mitigated. But, says the IPCC, this will need ‘rapid and far-reaching’ transitions in land, energy, industry, buildings, transport and cities and would require ‘unprecedented changes’.

In their declaration on the climate and biodiversity emergency, otherwise known as Architects Declare, UK architects say that climate breakdown and loss of biodiversity are the most serious issues facing planet Earth. They say that, for everyone working in the construction industry, meeting the needs of our society without breaching the Earth’s ecological boundaries will demand a ‘paradigm shift in our behaviour’.1

Details of the declaration Clients and architects will need to commission and design buildings, cities and infrastructures as indivisible components of a larger, constantly regenerating and self-sustaining system.

The declaration states that the research and technology exist to begin that transformation, but what has been lacking is collective will. Recognising this, architects have committed to strengthen working practices to create architecture and urbanism that has a more positive impact on the world.

Signatories to the declaration will seek to: • Raise awareness of the climate and biodiversity emergencies, and the urgent need for action among clients and supply chains • Advocate faster change towards regenerative design practices with a higher funding priority from the Government • Establish climate and biodiversity mitigation principles as the key measure of success • Share knowledge and research on an open-source basis • Evaluate all new projects against the aspiration to contribute positively to mitigating climate breakdown, and encourage clients to adopt this approach >> www.trada.co.uk

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To facilitate progress in the UK, the UK Green Building Council has launched a programme to drive the transition to a net zero carbon built environment. The programme, ‘Advancing Net Zero’, will focus on five main areas:

Engineers have also joined in declaring a climate emergency. Photo: UKGBC

• Upgrade existing buildings for extended use as a more carbon-efficient alternative to demolition and new build whenever there is a viable choice • Include life-cycle costing, whole-life carbon modelling and post-occupancy evaluation as part of basic scope of work, to reduce both embodied and operational carbon • Adopt more regenerative design principles, with the aim of designing architecture and urbanism that goes beyond the standard of net zero carbon in use • Collaborate with engineers, contractors and clients to further reduce construction waste • Accelerate the shift to low embodied carbon materials • Minimise wasteful use of resources in architecture and urban planning, both in quantum and in detail.

Similar declarations have been made by others in the construction industry, including structural engineers, civil engineers and building services specifiers. RIBA is also developing its Ethics and Sustainable Development Commission’s action plan, and has pledged to support the Government’s 2050 net zero emissions target.

Net zero by 2050 The World Green Building Council (WGBC)2 launched its Net Zero Carbon Buildings Initiative, which calls on companies, regions and states to reach net zero carbon operating emissions by 2030, and for all buildings to be net zero by 2050. By doing this it is hoped to limit global warming to below 2 oC and ideally below 1.5 oC by drastically reducing operating emissions from buildings. The WGBC says its commitment is unique in positioning building performance as a core component of strategy to ensure full alignment with the Paris agreement of the United Nations Framework Convention on Climate Change. www.trada.co.uk

• Building consensus on a framework definition for net zero carbon buildings in the UK • Compiling a collection of case studies profiling projects that achieve net zero carbon for construction or operation, or which include approaches that align with the net zero carbon buildings framework • Developing a guide to Scope 3 reporting in commercial real estate to improve the accuracy and robustness of scope 3 emissions reporting • Launching the Net Zero Carbon Buildings Commitment • Holding a European summit on advancing net zero emissions.

Where does timber construction fit into this? According to the UN, building construction and maintenance uses around onethird of the world’s energy, and produces around one-quarter of the planet’s greenhouse gases. However, using timber in construction can significantly reduce this impact: • Compared with other construction materials, such as concrete and steel, only small amounts of carbon are used to produce timber building materials.

• Due to the exchange of carbon dioxide with oxygen by photosynthesis, wood captures and stores carbon for its entire life cycle – around 1 tonne of CO2 per 1m3 of wood.

• The by-products of timber production – such as bark, branches and treetops – can be processed into pulp and bioenergy.

Clive Fussell, Director at design and engineering practice Engenuiti, which has signed up to the structural engineers’ equivalent of Architects Declare, says that, as with all construction materials, it is important to assess timber on a whole-life basis, with particular consideration given to re-using and repurposing timber structures to avoid the release of methane resulting from timber rotting in landfill.

‘As with all good engineering, it’s about using the right material in the right place. Timber cassettes offer advantages in long-span roof structures, CLT slabs provide acoustic and fire resistance to floors using timber sizes that would otherwise be difficult to use for construction, and lightweight framing offers an efficient speedy solution for domestic property. Increasingly, we are using CLT coupled with other materials such as steel frame to provide structural solutions to buildings such as commercial offices that have not used timber for the best part of 100 years.’

Another passionate advocate of sustainable design and construction is Anthony Thistleton of architects and signatory to Architects Declare, Waugh Thistleton. >> Timber 2020 Industry Yearbook

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‘It’s no exaggeration to say that using timber can save the world.

The more timber is used, the greater requirement there is for forests, and large-scale reforestation can help prevent global warming. As an architect I feel very lucky that I’m in a position to do something about reducing the amount of carbon we produce.’

‘As a practice we also see value in the potential of hybrid systems, of using timber where it’s best placed to be used in conjunction with other materials where needed and necessary.

We need to find unique ways to collaborate between the timber industry and other industries, like steel and concrete.’

Sustainable forestry

According to Andrew Wylie, Partner at Buro Happold, which is a signatory to the structural engineers’ declaration, using timber in new-build construction is only part of the solution – there’s a growing move to repurpose and/or refurbish buildings, such as extending storeys on top. Given its relatively light weight, timber is ideal for this.

Architects dRMM’s approach to adopt more regenerative principles – one of the key objectices of Architects Declare – is about the promotion and practical application of timber.

As dRMM Director Jonas Lencer says: ‘Sustainable forestry management is going to be a really important step for how the world reduces its carbon footprint.

If you look at it from a global scale, using as much timber in construction as possible is vital in mitigating the industry’s impact on climate change, because more trees will be grown and cared for, resulting in more long-term carbon sequestration. However, we also need to look at the biodiversity element, the cultural element, the issue of land use – all things that will require the promotion of using varied species.’

Together with the American Hardwood Export Council, dRMM has researched the development of tulipwood CLT, a softwood alternative with fast growth contributing to carbon sequestration.

The practice is also minimising the wasteful use of resources in its designs – another objective of Architects Declare – by working with design for manufacture and assembly and modern methods of construction principles in timber. dRMM has also been working with the London Energy Transformation Initiative, writing guidance for designers to accelerate the application of low embodied carbon materials.

‘There needs to be a shift in how we do things collectively, rather than trying to push timber into the current construction model – which we believe isn’t working,’ says Lencer. ‘We need to re-think the processes the entire industry uses and facilitate a shift in values towards a circular economy.

It is not just all about carbon, says Wylie. There is the potential of an ecological crisis, too. That is where the advantages of timber shine through, with certification schemes such as those run by the Forestry Stewardship Council (FSC®) and the Programme for the Endorsement of Forest Certification (PEFC™), together with appropriate chain of custody certification through the supply chain.

Buro Happold itself is meeting the goals of the climate emergency declaration by looking at projects holistically, starting with the question ‘do we need a new building at all?’ It then looks at the fundamental design of a building in the context of a tight ‘carbon budget’ before addressing the question of materials, of which timber certainly provides gains in embodied carbon. To help it meet climate change objectives, the practice is also investing in tools to assess the different options and to account for carbon use.

There are many fine words and good intentions from the architectural and engineering professions on building and using buildings with a reduced impact on climate and biodiversity. And it is clear that timber can play a role in constructing buildings with increased carbon sequestration and reduced production of greenhouse gases. It remains to be seen, however, whether these initiatives will translate into the huge, collective effort needed to make a difference on the ground to our planet’s future. n

Further reading • For more information on Architects Declare, visit: www.architectsdeclare.com • For more information on the Green Buildings Council Initiative, visit: www.ukgbc.org/ukgbc-work/advancing-net-zero

References Protest signs. Photo: Green Building Council FSC-A000503

www.trada.co.uk

1. www.architectsdeclare.com 2. www.ukgbc.org/ukgbc-work/advancing-net-zero

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Timber and the circular economy

Timber is the ultimate renewable material, but where does it fit into the circular economy?

Charlie Law looks at how the timber industry could embrace a system that makes the most of its available resources.

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raditionally, industry has followed the ‘take, make, dispose’ linear consumption model, where resources are taken from the earth to make whatever is needed and the products are disposed of at the end of their life.

2012, the Ellen MacArthur Foundation produced a great concept infographic, affectionately known as the butterfly diagram, which explains these biological and technical nutrient cycles.

Traditional linear consumption model. Source: SusConSol

Introduction to the circular economy The circular economy is based on the principles of: • designing out waste • keeping products and materials in use • regenerating natural systems.

This means that, if designing something for the long term, ensuring that it can be reused or remanufactured at the end of its use cycle, will reduce reliance on the finite resources used to make that product in the first place.

Although this is not a new concept, society has focused on efficiency over the past century and many of these core principles have been ignored. However, in the latter part of the 20th Century, society began to realise that it needed to conserve natural resources and, with Professor Walter Stahel’s ‘Product Life Factor’ paper in 1981, society started to think in loops.

In the 1990s the establishment of the FSC® and PEFCTM chain of custody schemes for timber helped to ensure a sustainable supply. Professor Stahel’s work was also expanded by William McDonough and Michael Braungart who developed the concept of cradle-to-cradle design in their book Rethinking the way we make things, first published in 2002. This introduced the concept of biological and technical nutrient cycles. Then, in FSC-A000503

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Circular Economy Butterfly Diagram. Source: Ellen MacArthur Foundation

Technical nutrients are generally sourced from finite resources that are extracted from the earth, such as metal ores to make steel or oil to make plastics. To reduce the impact on these finite resources, these materials must be kept in circulation by ensuring they are maintained, reused, refurbished, remanufactured or, as a last resort, recycled.

Biological nutrients are generally sourced from renewable resources such as plants or algae, and prior to returning these resources to the biosphere, as much should be extracted from them as possible (for example by extracting biogas) and resources should be maintained through replanting.

But where does timber fit into this circular economy?

Timber is a biological nutrient and therefore follows the biological cycle, with the possibility of some ‘cascading’ recycling (down-cycling). As can be seen by the CEI Bois diagram from 2009, which shows waste timber and by-products from the processing industry being reused for panel production >>

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and energy recovery, the timber industry has been promoting what could be termed a semi-circular business model years.

In addition the timber industry must ensure that it becomes more self-sufficient in its timber production, with the UK being second only to China as the largest net importer of timber and timber products, with more than 60% of our timber requirements being sourced from elsewhere.

Source security and responsible sourcing

Timber life cycle. Source: CEI Bois

However, when you look at the numbers, it is clear that more could be done with the timber that has been extracted. The Wood Recyclers Association estimates that 4.5 million tonnes of wood waste was generated in 2018. Of this 877,000 tonnes (19%) was recycled and used for panel board manufacture and 500,000 tonnes (11%) used for animal bedding, equine surfaces, and other recycling purposes. 2.1 million tonnes (47%) went to UK biomass and 313,000 tonnes (7%) was exported for biomass. We also know from the Environment Agency waste interrogator data that less than 1% of ‘waste’ timber ends up in landfill. This leaves approximately 665,000 tonnes (15%) unaccounted for, which is likely to have ended up in the ‘refuse derived fuel’ element of waste from materials recovery facilities (MRFs) that is either used in the UK or exported for use as a fuel in energy production.

With ever-increasing energy and resources going into timber production generally, and in particular engineered timber products, should designers look at how these products could be developed to follow the technical cycle, at least initially, and aim to: • maintain timber products in place for longer, refurbish and reuse timber components • look at how certain components could be remanufactured.

The UK must consider the long-term security of its vital timber supplies. Although there is currently a stable supply chain from many countries around the world, particularly those in Europe, for the 60% plus of the UK’s timber requirements, this may not be the long-term picture. The need to reduce carbon emissions from the built environment means that every country will have to look at constructing lower embodied carbon buildings. Timber is a key material in helping to achieve this, which could mean restricted supplies in the future.

2018 UK timber sources. Source: Forestry Commission / SusConSol

There must therefore be a sustainable home-grown timber supply for the future, as well as ensuring more is done with existing resources. For example, only 10% of the hardwood felled in the UK today is used for timber production,1 much of the remaining 90% is used for biomass, without any previous use. Although the utilisation rates for softwood timber are significantly higher, this demonstrates that this valuable resource is not being used as efficiently as it could be.

Designing for resource efficiency

Timber life cycle. Source: CEI Bois / SusConSol

www.trada.co.uk

Doing more with what we have primarily means finding new engineering solutions. Examples of work already done in this area include the Napier University research project, which looked at how to produce cross-laminated timber (CLT) panels from lower strength grade C16 British timber. Another example is the use of small section oak and larch to form the gridshell roof structure of the Savill Building in Windsor Great Park, all of which was harvested from trees within the grounds of the Crown Estate. >> Timber 2020 Industry Yearbook

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Savill Building roof, Windsor Great Park. Photo: SusConSol

Future innovations are likely to include the use of 3D-printed components manufactured from wood-fibre biocomposites, particularly for spare parts. This not only reduces the embodied carbon, but also reduces waste production, as only the raw materials required for the part are used, and stock required to be held by merchants, reducing warehouse space and delivery miles. Such innovations must be publicised to ensure they are picked up by industry in good time before a problem with supply arises.

nothing for insects, fungi and bacteria to feed on, along with converting the components in the wood that hold onto water into those that hold less water. This process means that nondurable hardwood species, such as ash and sycamore, can be converted into a durable product reaching class 1 or 2 durability. These species should therefore easily last 30 years in external above-ground applications, and with good detailing possibly up to the 60 years indicated for external cladding materials. However, these products are not suitable for structural building elements, so other alternatives to treatment will need to be used for these applications.

Maintaining timber in place for longer Existing timber must be maintained for longer, particularly in buildings and other long-term use structures. The diagram below shows what the service life of typical building components should be aiming for.

Grown in Britain certified ‘Brimstone’ thermally modified timber. Photo: SusConSol

An alternative to thermal modification is the acetylation process pioneered by Accsys Technologies in their Accoya® products, where certain softwood timbers are in effect pickled in an industrial vinegar. This has a similar effect to the thermal modification process, making the wood unpalatable to insects, fungi and bacteria. This has resulted in Accoya® products in external above-ground applications, such as windows and doors, being guaranteed for 50 years, with an expected lifespan much longer than this. This means these products are likely to last at least the 60-year period required for the external skin of a building.

Minimum building component service life. Source: SusConSol

Traditionally, to make timber last longer, durable species have been sourced from the UK or overseas, or non-durable species of softwood timber have been chemically treated with hazardous heavy metals such as copper and chromium. However, due to the cost of durable hardwood timbers, and restrictions on the use of the chemical treatments and issues with reuse and disposal at end of life, other innovative solutions are being considered.

One such solution is the thermal modification of timber. The process involves heating the timber to temperatures in excess of 200°C with the addition of steam, which results in the sugars and resins within the wood being cooked off, leaving

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Timber 2020 Industry Yearbook

Accoya® timber windows and doors. Photo: Accsys Technologies

Research into CLT and wetting is continuing this year and results will inform TRADA publications. Good detailing and construction methods during the build are essential in ensuring

Timber structures Spotlight on: Sustainability

the timber does not take on too much moisture before the structure is watertight, and also to allow escape of any moisture that is taken on. There also needs to be good access to areas where timber could be affected by water, such as in toilet and bathroom areas.

Designing for flexibility, deconstruction and disassembly For these structures to remain relevant, they must be flexible enough to be reconfigured to suit the current user’s needs.

This could include the incorporation of float-out wall panels that can open up or close down spaces within a building.

It could also mean the incorporation of access panels to provide access for services maintenance.

At end of life, all components of the building need to be dismantled with the intention that they are refurbished as required and reused, or sent for remanufacture into new components. This may mean the use of, for example, quick release connections, such as Sherpa connections for structural timbers, which can be lifted off; or the use of innovative joints installed in products during manufacture, such as the Kährs Woodloc© 5S system, which allows the floor to be dismantled (although something as simple as the use of screws rather than nails for fixing cladding materials would also suffice).

For example, a removable wood flooring system could be provided on a service contract over a defined period, with the manufacturer also providing a cleaning and maintenance service throughout this period. When the service contract period is completed, the flooring could be removed, refurbished as required, and leased out on a service contract to another client. Another example could be the long-term lease of a component that needs little or no servicing, such as a partition wall system. The wall system would need to be flexible enough to be used in various locations, both on the original site of installation or other similar buildings, where the nominal floor to ceiling height was within a defined tolerance.

The manufacturer could then control the installation and removal, and any subsequent refurbishment or remanufacture before being leased to another client.

Conclusion There is already much innovation in the timber product industry with many products already in place that could easily adapt to a circular economy model. Therefore there is clearly scope for timber product manufacturers to move to a circular economy business model, but this will require a change in the way products are marketed to the construction industry, as well as education and an acceptance of these business models by clients. n

About the author

Recycling timber, which in most cases actually means downcycling (breaking it down into its component elements or materials), should only be considered where maintenance, reuse or remanufacture are not viable options over the life of the building or product.

Business models To facilitate the take up of the above options, changes in business models will be required. Where components are to be recovered for reuse, refurbishment or remanufacture at the end of their service life, it would be beneficial if the ownership remained with the component supplier. This allows them to control any required maintenance on the component to ensure it remains in use for the required service life, and also the recovery of the component at the end of its service life.

There are various business models that could be used for timber products, and the one used would depend on the intended service life of the component, and the level of maintenance required throughout this life. Possible business models that could be considered are short-term hire, longerterm leasing, service contracts or incentivised return in addition to, or preferably instead of, standard sales contracts. www.trada.co.uk

Charlie Law, CEnv, MIEMA, ICIOB Founder and Managing Director Sustainable Construction Solutions

Further information • Sustainable Construction Solutions at www.susconsol.co.uk • Ellen Macarthur Foundation at www.ellenmacarthurfoundation.org

Further reading Braungart, M. and McDonough, W., Cradle to Cradle: Rethinking the way we make things, Vintage, 2009

References 1. Grown in Britain WoodStock Report 2016: www.growninbritain.org/2915-2

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Delivering large-scale lowcarbon education buildings Christian Dimbleby explains how timber is increasingly used in education buildings, creating low-carbon and healthy spaces.

Figure 1: University of East Anglia,The Enterprise Centre.

Photo: DarrenCarter / MorganSindall

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“When you look at the impact of new construction over the next 30 years to 2050, the role of building materials is significantly more important than building operations by up to nine times the emissions.”

A

t a time when climate change is at a critical level, the construction industry is faced with intense speculation as to its approach when reducing environmental impact in new buildings. It is essential that architects and others involved in designing the built environment tackle this challenge head on.

When it comes to ensuring net zero carbon buildings, timber plays a key role.

Achieving low-carbon construction What do we mean when we say low-carbon design or ‘net zero carbon buildings’? The UK Green Building Council1 splits the definition up into two sections: • construction • operational energy.

This is an important distinction, as currently UK Building Regulations only focus on operational energy through Part L requirements, which themselves are nowhere near stringent enough.

Although approximately 28%2 of global carbon dioxide emissions come from building operations, a further 11% comes from building material and construction often referred to as ‘embodied carbon’ or, as a recent trend has defined it, ‘upfront emissions’.

When you look at the impact of new construction over the next 30 years to 2050, the role of building materials is significantly more important than building operations by up to nine times the emissions.

Timber is a low-carbon material: it is a natural product, needs minimal processing and refinement to make into a usable building material, and can lock up carbon in the building through ‘carbon sequestration’ – which is why it is sometimes thought of as carbon negative. But, even if this last aspect is not accounted for, timber still has significantly lower embodied carbon than alternative building materials, such as concrete, steel, brick or blockwork.3 >> www.trada.co.uk

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The TRADA Timber Industry Yearbook 2020

Sometimes it’s better to think inside the box Open Box Media&Communications + Graphic Design + Brochure Design + Contract Publishing + Print & Distribution + Web Design

Premier House 13 St Pauls Square Birmingham B3 1RB e. inside@ob-mc.co.uk t. +44 (0)121 200 7820

Timber structures Spotlight on: Sustainability

Figure 2: Harris Academy, Sutton. Photo: Jack Hobhouse

Education strategy

Reduce

Architype has developed a detailing strategy using timber to ensure that building designs achieve the highest thermal performance on education projects. The system uses deep timber I-joists or Larsen trusses on the outside of the timber frame or cross-laminated timber (CLT) structure, which can then be filled with cellulose (recycled newspaper) to form an envelope with no thermal bridges and minimal temperature loss / gain through the envelope. These requirements reduce heating demand by 90%4 compared to typical new-build schools and help to meet the Passivhaus standard, which ultimately aims to minimise operational energy.

As Ludwig Mies Van Der Rohe is often quoted: ‘less is more’.

The simple elegance of CLT and timber facilitates both architectural design and decarbonisation targets.

Timber also has many other environmental benefits besides lowering carbon. The research into biophilia has shown that being surrounded by nature can benefit health and well-being.

It can provide great aesthetics, and being surrounded by the beauty of nature and natural materials puts us at ease, lowering stress levels and other well-being indictors.5 This is essential in educational buildings, where lower stress and being at ease assists in retention of information and learning.

UK construction’s best strategy to reduce the embodied carbon of education buildings is: • reduce • redesign • reuse. www.trada.co.uk

CLT and timber are great as finished products and require little covering other than fire treatment and/or protection from the elements. They were used to great effect at Harris Academy, Sutton (Figure 2), with exposed CLT ceilings (to floors and roofs) and approximately half of the structural internal walls.

Minimising material use has the added benefit of reducing costs and carbon emissions from repair and maintenance, something that is a high cost factor in education buildings.

Minimise concrete CLT has a higher strength to weight ratio than solid concrete.

Moreover, 1m3 of concrete weighs approximately 2.7 tonnes, while 1m3 of CLT weighs 400kg.6 Reducing the weight of the superstructure means that foundations can be significantly reduced, which saves both money and carbon. Architype’s timber educational buildings generally have no piled foundations; they can be installed on a minimal concrete raft, with insulated formwork. Similarly, the lightweight nature of timber means that it is possible to expand existing facilities without adding new foundations, such as the rooftop extension at The Gower School, a Montessori school in London. >> Timber 2020 Industry Yearbook

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Timber structures Spotlight on: Sustainability

Redesign Flexibility is a critical part of a functioning circular economy, as this allows buildings to be reused and adapted by others over time, rather than being used for a single purpose and then discarded. Careful spatial planning combined with modern timber structural solutions that can easily span 6m to 8m allow this. Timber is advantageous as it is the best material for simple adaptation on site – cutting holes and adjusting is much simpler and easier than with steel or concrete.

The Harris Academy, Sutton, has CLT floor slabs supported by a glulam external frame and a structural corridor wall.

This design allows rooms to be bounded by non-structural partitions that can be removed or added to as the teaching pedagogy changes over time. Additionally, the main structure of prefabricated CLT panels screwed or bolted together allows for design disassembly or replacement rather than waste; the building could be disassembled and rebuilt elsewhere.

Choice of materials Where possible, locally sourced materials should take priority, as this substantially reduces emissions from transportation, as well as increasing sustainable employment in the local area. For the Enterprise Centre at The University of East Anglia (Figures 1 and 4) a materials map was devised at competition stage to evaluate what local products could be used (Figure 3). In the end 80% of the structural timber frame came from Thetford Forest, and the columns to the front were larch from the Brandon Estate, Suffolk. The cladding was Yeoman wheat straw thatch, grown and harvested locally, and the clerestory roofs were clad in Norfolk reed.

Similarly, in the design for Burry Port School in Carmarthenshire, the timber came from locally sourced forests. The timber frame consisted of Welsh/borders larch; the Brettstapel was sourced largely from Welsh woodland, 90% Sitka spruce and 10% Douglas fir. Beech was specified for the hardwood dowels and cladding from untreated Welsh/UK-grown larch.7 >>

Figure 3: UEA materials map – the majority of primary materials were sourced within a 50-mile radius to the university. Illustration: Architype

www.trada.co.uk

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Timber structures Spotlight on: Sustainability

Reuse

About the author

Many redundant materials were reused in the construction of the Enterprise Centre at the University of East Anglia: • The timber cladding on the west facade was made from old Iroko laboratory desks that had been sitting in storage for many years, and were simply cut and planed to form a beautiful facade.

• Coppiced timber screens,8 that had been used in the Sensing Spaces: Architecture Reimagined exhibition at the Royal Academy of Arts in 2014, were repurposed into dividing screens in the open space ground floor.

• Spare furniture was used, rather than building new – this included the reception desk from the Sainsbury Centre for Visual Arts at University of East Anglia (as due to popularity a larger one was needed), as well as most of the seating and furniture in the upstairs pods.

Conclusion The Government has promised funding for school refurbishments and to create one million new school places by 2020. The operational and embodied carbon of buildings can be radically reduced through the use of timber, without impacting on the design quality of the building. Future building design will have a choice between designing from materials, such as timber, that allow the building to be grown consuming mainly sunlight and the carbon that we are trying to limit, or materials that require unsustainable and often irreversible damage to the Earth’s natural capital. n

Christian Dimbleby Associate Architype

Further reading • Homegrown Timber in UK Construction, Case Studies, Volume 1, Woodknowledge Wales • The role of wood in healthy buildings, TRADA Briefing, 2019 • WIS 0-14 Specifying timber for healthy buildings, BM TRADA, 2019 • The Enterprise Centre, Norwich, East Anglia, Case Study, TRADA, 2016. Available at: www.trada.co.uk/case-studies/ the-enterprise-centre-norwich-east-anglia

References 1. Net Zero Carbon Buildings: A Framework Definition, UKGBC, 2019 2. Architecture 2030, 2018 Global Status Report, ISBN 978‐92‐807‐3729‐5, Global Alliance for Buildings and Construction, 2018 3. Supported by data on ICE (Inventory of Carbon & Energy) database 3.0 figures (collections of EPD data). Timber softwood, average – no carbon storage 0.263 kgCO2e/kg; AAC concrete block 0.280 kgCO2e/kg; steel section 1.55 kgCO2e/kg; concrete (most common point on histogram all data collected) 0.146 kgCO2e/kg without any reinforcement [also weight to strength ratio of materials should be factored – when you compare a concrete floor span to timber a simple calculation shows concrete to be ~44% higher] 4. www.cibsejournal.com/case-studies/a-lesson-in-passivhausaward-winning-wilkinson-primary-school 5. www.structuraltimbermagazine.co.uk/news/can-timberconstruction-benefit-health-and-wellbeing 6. ‘Is Cross-Laminated Timber (CLT) the Concrete of the Future?’, Jose Tomas Franco interview with Jorge Calderon, www.Archdaily.com, 19 Aug 2019 7. http://woodknowledge.wales/wp-content/uploads/2016/02/ Homegrown-Timber-in-UK-Construction-Case-Studies-V1.pdf

Figure 4: University of East Anglia, The Enterprise Centre.

Photo: DarrenCarter / MorganSindall

www.trada.co.uk

8. Coppiced timber, screens forming Maze and Zen Garden designed by Li Xiaodong, Sensing Spaces: Architecture Reimagined, Exhibition Catalogue, Royal Academy of Arts, London, 2014 Timber 2020 Industry Yearbook

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Timber structures Spotlight on: Sustainability

Timber and the resilient home Christiane Lellig discusses the important role the timber industry has to play in building more sustainable and climate-resilient homes.

Backwater – Platform 5 Architects.

Photo: Alan Williams

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Timber structures Spotlight on: Sustainability

“In the future, buildings need to be more resilient to an ever-changing climate. This means designing properties that can better resist flooding or high winds, creating homes that won’t overheat in warmer summers.”

T

he world is heating up. Since the turn of the 20th Century, the average temperature of the Earth’s surface has risen by 0.9°C, with most of the warming occurring in the past 35 years.1 This warming has destabilised the natural environment, causing sea ice and glaciers to melt, sea levels to rise and shifting global precipitation.

Not only is it getting warmer, extreme weather conditions such as storms and flooding are becoming increasingly regular occurrences in the UK, with hurricanes and severe drought affecting other areas of the globe. These changing weather patterns are having an effect on wildlife populations too, with the populations of many mammals, birds and insects decreasing, while others such as ticks and mosquitos are multiplying.

In November 2016 the Paris Agreement2 came into force.

Signed by almost 200 countries, the agreement aims to limit the global temperature rise during this century to 1.5°C above pre-industrial levels. Under this agreement, each country must determine, plan and regularly report on the contribution that it undertakes to mitigate global warming. To help achieve this, the UK has committed to reducing its carbon emissions to net zero by 2050, but climate scientists insist that this will be far too late.

The UN Intergovernmental Panel on Climate Change (IPCC) has warned that we have just over a decade to limit this global warming to a maximum of 1.5°C to avoid climate breakdown.

Ways to do this include: • reducing the amount of fossil fuels burned for transport and heating • reducing the amount of carbon dioxide released into the atmosphere through our industrial and manufacturing processes • switching to renewable energy sources • insulating our homes better • reducing the amount of animal products consumed • offsetting any emissions with reforestation through sustained and well-managed tree planting.

The construction industry and climate change According to the Technology Strategy Board, the construction industry is responsible for 45% of the UK’s carbon emissions.

Around 80% of those emissions are from buildings in use.3 This great responsibility also presents a huge opportunity. >> www.trada.co.uk

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Timber structures Spotlight on: Sustainability

The industry is uniquely placed to help achieve the UK’s emissions targets by: • building and retrofitting better-insulated homes and offices • choosing sustainable, locally sourced materials • using renewable energy • implementing passive methods of heating and ventilation where possible.

Designed by Platform 5 Architects, Backwater on the Norfolk Broads is a stick-built timber frame superstructure built on top of a dry deck, with the house raised on piles to accommodate changing water levels. The highly insulated building shell was designed to deliver exceptional levels of airtightness, with a mechanical ventilation with heat recovery system provided to minimise heat loss through ventilation.

To help the UK transition to a net zero built environment, the UK Green Building Council has launched its multi-year Advancing Net Zero4 programme, focusing on a range of activities and initiatives to help the industry meet this challenge.

In the future, buildings will need to be more resilient to an ever-changing climate. This means designing properties that can better resist flooding or high winds, creating homes that won’t overheat in warmer summers, and implementing proper ventilation to ensure buildings are more naturally resistant to fungi and pests.

Keeping the floodwater at bay One way to ensure that our homes do not flood is to avoid building on low-lying land and flood plains. That said, with more extreme weather conditions, areas previously not considered a flood risk can become liable to flooding and, with rising sea levels and shrinking available land for use, adopting designs that work with the water may be the answer.

In his book The Modern Timber House in the UK,5 Peter Wilson outlines some houses that have been designed to resist flooding. Examples include Backwater (Figure 1) and The Redshank (Figure 2).

Figure 2: The Redshank – Lisa Shell Architects. Photo: Helene Binet

The Redshank is a spaceship-like structure located in the flat coastal landscape near Clacton-on-Sea in Essex. Perched on three elliptical steel legs to raise it above the floodwater, the superstructure is made from cross-laminated timber (CLT), which forms the floor, walls and roof, with no need for any interior decoration. It is clad in non-hazardous and biodegradable cork, adding to the environmental benefits of using a low embodied carbon material such as CLT. There is also a TRADA Wood Information Sheet available on timber frame design for flood-prone sites.6

Creating a healthy indoor environment Resilience is not only about protecting homes from changes in climate; it is also about providing environments that enable occupants to be more resilient to stress. As we now spend 90% of our time indoors, the quality of our indoor environment is paramount. Building Biology is the concept of creating and maintaining a healthy indoor living environment. The Institute of Building Biology and Sustainability7 sets out 25 building principles across five areas: 1. Healthy indoor air 2. Thermal and acoustic comfort 3. Human-based design 4. Sustainable environmental performance 5. Socially connected and ecologically sound communities.

Figure 1: Backwater – Platform 5 Architects. Photo: Alan Williams

www.trada.co.uk

The benefits of using timber and natural materials to improve physical and mental well-being and reduce stress are welldocumented and can help to meet many of the Building Biology principles, from healthy indoor air quality through to minimising energy consumption and using sustainably sourced materials. >> Timber 2020 Industry Yearbook

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Timber structures Spotlight on: Sustainability

Meeting low carbon targets for homes According to the UK Committee on Climate Change (CCC), the 29 million existing homes across the UK must be made: • low carbon • low energy • resilient to climate change.

All new homes must also follow this criteria, with the addition of being water efficient.

Figure 3: Marmalade Lane – Mole Architects. Photo: David Butler

Designed by Mole Architects, Cambridge’s first co-housing development, Marmalade Lane (Figure 3), is a collection of contemporary townhouses designed to meet near-Passivhaus standards. Built from a closed timber panel construction system, the panels offer high standards of insulation and airtightness, significantly reducing the amount of energy used to heat the homes. Created and run by its residents, the co-housing community is a communal environment with shared resources.

To help meet these aspirations, the UK Government has recently committed to a new ‘future homes standard’, which states that, from 2025 at the latest, no new homes will be connected to the gas grid. Instead they should: • be heated through low-carbon sources • have ultra-high levels of energy efficiency alongside appropriate ventilation • where possible, be timber framed.

Unfortunately, new buildings often underperform when it comes to energy efficiency in comparison to the expectations defined at the design stage. This is known as the ‘building performance gap’. On average, traditional new-build homes use 60% to 80% more energy for heating than their design target.

One approach to help address the building performance gap is Passivhaus, which, according to the Passivhaus Trust,8 achieves a 75% reduction in space heating requirements, compared to standard practice for UK new builds.

The benefits of Passivhaus performance include: • improved indoor air quality • thermal comfort • self-maintained moisture and humidity levels.

Figure 4: Goldsmith Street – Mikhail Riches. Photo: Tim Crocker

Goldsmith Street (Figure 4 ) in Norwich, winner of the 2019 Stirling Prize, is the largest social housing Passivhaus scheme in the UK. Designed by Mikhail Riches, the development provides 100 timber frame homes, a mix of houses and flats for individuals and families. As a low-carbon scheme, the award-winning design provides light-filled homes with low fuel bills for social rent. www.trada.co.uk

Passivhaus is about airtightness and breathability, so choosing the right insulation material is key. Wood fibre insulation is a good option as the natural fibres help to prevent overheating in summer.

Homes built to Passivhaus standards use heat recovery ventilation systems to heat the incoming fresh air with heat from the outgoing stale air – due to their design, they are also ideally suited to hotter weather as while remaining warm in winter, they also remain cool in the summer. Homes designed to Passivhaus standards often benefit from increased space and daylight, too. >> Timber 2020 Industry Yearbook

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Timber structures Spotlight on: Sustainability

Figure 5: Saffron Lane – rg+p Architects. Photo: rg+p

Saffron Lane (Figure 5) in Leicester, designed by rg+p, is one of the UK’s largest Passivhaus affordable housing developments. With a mix of one- to four-bedroom houses, the timber-framed homes, built to the Lifetime Homes Standard, are highly energy efficient, saving homeowners hundreds of pounds a year in energy costs.

About the author

Christiane Lellig Campaign Director Wood for Good

Timber as the material of choice As well as ensuring that we significantly reduce the amount of energy used once our homes are built, another way to help combat climate change is to choose construction materials that are low carbon, a carbon store, reusable or recyclable, creating a circular economy.

Recent reports show that materials such as cement in concrete contribute up to 8% of total global carbon emissions.9 Therefore, choosing materials such as timber (which sequesters carbon) as a primary construction material helps fight against carbon emissions. Materials such as concrete and steel will continue to be used, but using timber as part of a hybrid structure can help to offset the negative effects.

Choosing timber as a building material may seem counter to the need to reforest the planet. However, sourcing timber from sustainably managed forests helps ensure that enough trees are grown and the biodiversity of forests is maintained.

There is no one quick fix to tackling the climate crisis. It is a shared responsibility for all parts of society. With enough political and industry will, the construction sector is ideally placed to rapidly implement some radical changes that will have a significant impact.

The timber industry has a key role to play. A ‘timber first’ approach to building, coupled with thoughtful design, can start to make a difference immediately. n www.trada.co.uk

Further information Wood for Good is the timber industry’s campaign to promote the use of wood in design and construction. For more information, visit www.woodforgood.com and sign up for the regular monthly newsletter.

Further reading WIS 2/3-64 Timber frame design for flood-prone sites, BM TRADA, 2015

References 1. https://climate.nasa.gov/evidence/ 2. https://unfccc.int/process-and-meetings/the-parisagreement/the-paris-agreement 3. www.designingbuildings.co.uk/wiki/Carbon_dioxide_in_ construction 4. www.ukgbc.org/ukgbc-work/advancing-net-zero/ 5. https://woodforgood.com/training-and-development/ publications/the-modern-timber-house 6. www.trada.co.uk/publications/wood-information-sheets/ timber-frame-design-for-flood-prone-sites/ 7. https://buildingbiology.com/principles-of-baubiologie/ 8. http://passivhaustrust.org.uk/what_is_passivhaus.php 9. www.bbc.co.uk/news/science-environment-46455844 Timber 2020 Industry Yearbook

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Timber structures Off-site construction

Timber design pioneers: MMC needs a long-term vision In 2019, Urban Splash announced a £90m deal that would bring Japan’s biggest housebuilder – Sekisui House – to the UK, helping the developer create more modular timber homes.

Chris Shaw talks through the adoption of modular and plans for the future.

Modular timber housing construction.

Photo: Urban Splash

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Timber structures Off-site construction

“The customisable element of Town House remains an important factor – customers don’t want identikit red boxes – and, crucially, individual specifications are deliverable in a factory environment.”

U

rban Splash started developing timber homes using modular techniques in 2012, working with Liverpoolbased architects shedkm and off-site construction partners SIG (formerly Insulshell) to create a prototype modular home for the family housing market. Initially, we were looking at traditional construction, but then turned to modern methods of construction (MMC).

We began thinking about pioneering something new; perhaps a modern take on a Victorian terraced house for urban and suburban sites across the country? The team began work on a panelised model (which comes in pieces and is erected on site) and then, working with SIG, switched to fully volumetric (each storey is built off site and dropped in).

Using modern methods of construction In 2016, after years of R&D and design iterations, Urban Splash brought the first 43 homes to market at New Islington in Manchester under the ‘House by Urban Splash’ brand. Core to that is ‘Town House’, which offers customers an adaptable design template by which they determine the layout of their home – and whether they want to live in a 1,000 sq ft two-storey property or a 1,500 sq ft three-storey property.

The customisable element of Town House remains an important factor – customers don’t want identikit red boxes – and, crucially, individual specifications are deliverable in a factory environment.

To date, we have created more than 200 of those bespoke homes for customers at: • New Islington in Manchester • Irwell Riverside in Salford • 24 Town Houses at Smith’s Dock in North Shields • Port Loop in Birmingham.

There were challenges introducing them to the market: from creating an attainable yet sustainable product, to helping the first customers secure mortgages on an untried home.

The industry’s wake-up call In 2016, the construction industry was encouraged to sit up and listen when it came to modular; that year’s release of >> www.trada.co.uk

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Timber structures Off-site construction

The numbers are impressive. Sekisui has delivered more than two million modular homes, with around 15,000 customisable individual homes developed every year and, by using advanced solar panel technology, Sekisui House has now built 44,000 zero carbon homes. That scalability, and the deal, means that Urban Splash can now take a long-term view.

What modular still needs However, the industry’s grasp of modular and MMC isn’t quite there yet and the private sector cannot revolutionise alone. The Government, through Homes England, has realised that it needs to be a catalyst. MMC needs public sector coercion and support, otherwise it will be vulnerable to market fluctuations and any type of downturn. It needs long-term vision.

New Islington. Photo: Jack Hobhouse

Mark Farmer’s Modernise or Die1 report was a big moment for the sector, calling for radical changes in the wake of severe traditional construction skills shortages.

Scaling up Many industry experts believed that ownership of the supply chain would enable more effective operations and control quality. Urban Splash acquired SIG in 2018, with its 85-employee modular factory in Alfreton in the East Midlands, which helped to take over management of the production line. It means more is known about exactly what is needed so materials can be used in the best way, calculating and ordering to precise specifications – making for less waste and a more efficient process.

The industry is still lacking in its adoption of modular and timber homes; industry statistics show that just 10% of homes are created off site in the UK – meaning there is still a way to go, especially when you read that countries such as Sweden have advanced to 45% of homes created off site.

On their arrival in the UK market, Sekisui House was surprised that the UK industry was so out-dated and that there was a housing crisis. In Japan the output of homes is enormous and the technology is advanced.

The relationship with Sekisui allows more investment in R&D – ensuring that new ways are found to adapt products and keep these houses at the forefront of the industry. n

About the author

Managing production also means delivery can be aggregated, scheduling bulk deliveries of houses to site – meaning less traffic on the roads. Then there are advantages on the site itself, where the lorries turn up for one day to crane houses in, reducing congestion and disruption for people living in and around site.

In 2019, we finalised a £90m deal with Sekisui House and Homes England, which will help to scale up the creation of modular homes in the UK. The deal was more than two years in the making, during which time the team visited Japan twice and visited two of Sekisui’s factories to witness an incredible setup. The company’s 750,000 sq ft R&D institute in Osaka features a two-storey earthquake simulator reaching 7.7 on the Richter scale. Sekisui has developed a sophisticated design that absorbs the friction and heat of the earthquake, separate from the inside of the house. www.trada.co.uk

Chris Shaw Director of Delivery Urban Splash

Further reading • Timber design pioneers: Collaborate to innovate, ISBN 978-1-909594-80-7, BM TRADA, 2019, pp66-71 • Hairstans, R., Off-site and industrialised timber construction, ISBN 978-1-909594-81-4, BM TRADA, 2019

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Can off-site education increase productivity and address the skills shortage?

Dr Mila Duncheva examines some of the productivity issues facing the construction industry and how off-site timber construction can help.

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he construction industry is exacerbated by a skills shortage, stagnating productivity with as much of 57% of labour time unused1 – all under the pressure to create more sustainable urban environments. Add into the mix the wider issue around availability of land,2 sprinkle in some ‘snagging list’ items, shake until the project is at least 30% behind schedule. Thus, the business-as-usual cocktail starts to be synonymous with ‘a sick, or even a dying patient’, as coined by the Farmer Review.3

Why did Farmer emphasise productivity in his labour model review, and why is productivity so high on the UK Government construction agenda?

What is meant by productivity?

Productivity is the ratio of a product’s input to its output. In economics books, productivity is most often associated with quality of life. The more productive a society is, the more commodities and services it can produce with lower labour input. This can be translated as not working any overtime and still making a juicy annual bonus. Unfortunately, however, the UK economy has experienced its third consecutive quarter of productivity decline, so we are working longer and achieving less.4 When it comes to construction projects, productivity is not just about labour efficiency. Construction productivity is more multifaceted, and is closely interconnected with other issues, including: • time management • quality control • the sustainability agenda.

Because construction is a business, profitability and cash flow are also critical considerations when talking about productivity improvement. Among the productivity measures, therefore, total or multi-factor productivity is the most suitable to capture complex changes in productivity including technological changes.5 Productivity measurement is all about people and how we collectively drive the economy. www.trada.co.uk

Figure 1: Multifaceted productivity in the construction industry relies on people.

Illustration: Mila Duncheva

The UK construction industry’s productivity performance Over the past two decades many construction report authors have criticised construction productivity and suggested improvement strategies – from Latham’s recommendation to improve financial productivity by 30%,6 through Egan’s target to reduce defects by 20% per year,7 to the Construction 2025 goal of reducing time on site, among others. Unfortunately the statistics demonstrate that these targets have not been achieved, as construction productivity performance has stagnated. >> Timber 2020 Industry Yearbook

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The McKinsey Institute presented the ‘size of the prize’ for productivity improvement in construction as £1.6 trillion measured as total productivity.8 Yet how can productivity be improved? Increased use of manufacturing and digitisation through off-site construction methods have been proposed as strategies, where a part of the process is transferred to a controlled factory environment.

WPI Economics calculated that if, for example, 25% of work in construction was to be undertaken off site, £5.5bn of gross value added (GVA) could be achieved in regions outside of London by 2025.9 Based on WPI’s results and other sources, Figure 2 shows the potential for multifaceted productivity improvement in construction through higher uptake of off-site construction.

Intertwined with these statistics is the carbon agenda, where off-site timber construction, and mass timber in particular, offer opportunities for carbon sequestration while achieving complex architectural strategies. In homebuilding alone, 3.8 million tonnes of CO2 equivalent can be saved annually by constructing timber framed homes (19 tonnes of CO2equivalent per average home).10

Industry leaders have repeatedly reported how difficult it is to find designers capable of implementing DfMA for off-site construction at the earliest design stages, where the most value to the project can be added.17 To take the case of homebuilding in Scotland, dominated by timber frame construction, and increased numbers of projects are needed to enable companies to invest in scaling up manufacturing capacity and skills development.18 Apprenticeships will be critically important over the next few years to: • attract new trainees into the industry • up-skill existing staff • diversify the workforce.

According to research by Edinburgh Napier University, the most sought-after roles for off-site construction are: • production assemblers, who need to be aware of new production technology • joiners with craftsmanship skills • architectural technologists, engineers and estimators knowledgeable in off-site construction.

Disruption is necessary across the education system to inspire people to choose a career in off-site construction and mitigate these skills shortages.

These are the routes through which we can enhance our human capital,19 with the skill sets necessary to progress resource-efficient off-site construction.

Next steps

Figure 2: Performance improvement potential of off-site construction compared to traditional construction. Photo: Mila Duncheva Note: Based on data from the following sources, with the following units of measurement: Output per hour – percentage change per annum, Q1 2018 to Q2 2019;11 Defects – percentage of projects with reported defects 2018;12 Time delays – percentage of projects experiencing time delays 2018;13 Illness and injuries – percentage of workers suffering from work-related illnesses and injuries 2018;14 Profitability – gross profit margin 201815

Underpinning this growth is necessary investment in skills different to those in traditional construction, with emphasis on Design for Manufacture and Assembly (DfMA) combined with soft skills, such as: • attention to detail • adaptability to change • working to tight deadlines.16 www.trada.co.uk

A prime example of innovation in skills for off-site construction is Edinburgh Napier University’s Built Environment Exchange (beX) programme for talent development. BeX is a platform for students with a passion for sustainable construction, with the goal of accelerating change in construction culture.

BeX provides multidisciplinary students with opportunities in collaboration with other organisations such as the Construction Scotland Innovation Centre and Saltire. These include: • Master’s scholarships • international internships of 12 weeks • employability projects during their studies.

Some success stories of beX were exhibited at Architecture + Design Scotland in Glasgow between 24 October 2019 and 15 January 2020, currently located at the Construction Scotland Innovation Centre. The exhibition was curated by beX scholar Carola Calcagno20 and funded by Scottish Forestry. >> Timber 2020 Industry Yearbook

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A sample of the work can be viewed online21, showing the links between: • sustainable communities pre-manufactured from wood • drivers for change in the construction industry • skills development through beX.

References 1. http://constructingexcellence.org.uk/wp-content/ uploads/2017/02/darren-richards-beh-14022017.pdf 2. https://landcommission.gov.scot/notsoprettyvacant/ 3. www.cast-consultancy.com/wp-content/uploads/2016/10/ Farmer-Review-1.pdf p.8 4. www.ons.gov.uk/employmentandlabourmarket/peopleinwork/ labourproductivity/articles/ukproductivityintroduction/ januarytomarch2019 5. www.napier.ac.uk/research-and-innovation/research-search/ outputs/multifaceted-productivity-comparison-of-off-sitetimber-manufacturing-strategies-in 6. http://constructingexcellence.org.uk/wp-content/uploads/ 2014/10/Constructing-the-team-The-Latham-Report.pdf 7. http://constructingexcellence.org.uk/wp-content/ uploads/2014/10/rethinking_construction_report.pdf 8. www.mckinsey.com/industries/capital-projects-andinfrastructure/our-insights/reinventing-construction-through-aproductivity-revolution 9. http://wpieconomics.com/site/wp-content/uploads/2018/03/ wpi-economics-off-site-construction-2018.pdf

Sustainable communities pre-manufactured from wood exhibition.

Photo: Carola Calcagno

In addition, through the ongoing ‘Offsite ready’ research project funded by the Construction Industry Training Board (CITB), interactive learning content about off-site construction will be freely available to augment existing school, college and university-level education. Seven flexible modules will be created covering the whole building life-cycle. In these, actions should culminate into a skills-driven change in productivity of the UK construction industry.

Stay tuned22 to find out if these investments in skills and innovation start to push construction productivity into the ‘green’ after years of stagnation. n

About the author

11. http://wpieconomics.com/site/wp-content/uploads/2018/03/ wpi-economics-off-site-construction-2018.pdf 12. www.hbf.co.uk/documents/8389/CSS_HBF_Brochure_2019_ with_table.pdf

www.buildoffsite.com/content/uploads/2015/03/BoS_ offsiteconstruction_1307091.pdf

13. www.cornerstoneprojects.co.uk/index.php/delays-inconstruction-projects/

www.constructionnational.co.uk/news-menu/3431-how-muchare-delays-costing-the-uk-construction-industry-in-2017

14. www.hse.gov.uk/statistics/industry/construction.pdf www.buildoffsite.com/content/uploads/2015/03/BoS_ offsiteconstruction_1307091.pdf 15. https://mha-uk.co.uk/wp-content/uploads/2019/07/MHA_ Construction_Sector_Report_WEB.pdf 16. www.citb.co.uk/documents/research/offsite_construction/ offsite_construction_full_report_20170410.pdf

Dr Mila Duncheva Associate Lecturer Edinburgh Napier University

Further reading Hairstans, R., Off-site and industrialised timber construction, ISBN 978-1-909594-81-4, BM TRADA, 2019 www.trada.co.uk

10. https://woodforgood.com/news-and-views/2014/09/22/ukcould-store-3.8-million-tonnes-of-co2-annually-in-new-buildtimber-homes/

17. www.parliament.uk/documents/lords-committees/sciencetechnology/off-site-manufacture-for-construction/off-sitemanufacture-construction-ev.pdf 18. www.gov.scot/publications/new-housing-future-constructionskills-adapting-modernising-growth 19. www.taylorfrancis.com/books/9781315147321 20. www.napier.ac.uk/courses/browse-interests/engineering/bex 21. https://materials.ads.org.uk/?p=2641 22. https://materials.ads.org.uk/students-experience-industryplacements-in-timber-innovation/ Timber 2020 Industry Yearbook

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Providing an in-depth look at off-site timber construction

Robert Hairstans outlines the substantially expanded second edition of Off-site and industrialised timber construction: Delivering quality and efficiency, reflecting the steady rise in interest in these methods.

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ff-site construction is the factory production and pre-assembly of components, elements or modules before installation into their final location. Adopting an off-site approach effectively reduces the level of onsite labour intensity and delivery risk by means of premanufacture. It is based on the premise of delivering high levels of construction quality efficiently by applying lean practices and design thinking.

through a fabric-first approach – high levels of insulation and airtightness with reduced cold bridging. Timber is a truly sustainable building material and, with good silvicultural practices, trees can also improve land quality and soil fertility.

Timber construction therefore conforms to the paradigm of the circular economy by means of using and embracing a design for manufacture and assembly (DfMA) approach when disassembly (DfMA+D) is also considered.

Timber and the industrialisation of timber technologies aligns well with this ethos. Timber is the ideal construction material because it:

The history of timber in construction

• is strong in both tension and compression • has a high strength-to-weight ratio • can be relatively easily worked.

Timber also responds to the need for a more sustainable built environment acting as a prime carbon sink (carbon fixed from atmospheric carbon dioxide by photosynthesis), while being capable of forming high-performing building envelopes

Figure 1: Dalston Works, Hackey. Photo: Daniel Shearing / Waugh Thistleton

www.trada.co.uk

Timber as a construction material, as explained in Chapter 2 of the new edition, has evolved over the centuries and has the qualities to be a major constituent of the clean technology solutions required to sustainably deliver the built environment. Originally, however, the human race employed timber as a building material because it was available in most habitable regions of the world.

The climate and conditions of the region had a bearing on the nature and species of tree growing, which subsequently influenced the end form of construction. Mechanisation, the invention of new timber products and connection methods, as well as approaches to combining timber with other materials, have seen timber being used in an unimaginable array of forms from when it was first conceived as a building material.

More modern market specifics, such as procurement methods and local building regulations, have influenced the end building form and performance requirements, resulting in the need for on-going research and innovation of products and systems to ensure conformity and future-proofing. The re-engineering of timber, particularly the use of adhesive technology, in combination with quality-controlled factory environments, has redefined the boundaries for using timber in buildings. Timber engineered products can now span considerable distances, and mass timber products – such as cross-laminated timber (CLT) – are conquering new heights. >> Timber 2020 Industry Yearbook

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Urbanisation and colonial expansion required efficiency and quality of product, resulting in the first major exploitation of off-site techniques, although there is also evidence of offsite concepts being used by medieval carpenters for quality assurance (QA) purposes. QA, productivity and skills were therefore some of the original drivers in the uptake of off-site methods. However, regulations, automation and digitisation, with the onset of the fourth industrial revolution – digital innovation driven by the Internet of Things (IoT) and Internet of Systems (IoS) – are also influencing the uptake and form of off-site and more industrialised approaches. This is being further intersected with a need to transform the culture of construction towards a more modern and inclusive sector capable of diversification, cooperation and trans­parency. The convergence of these drivers presents a huge opportunity for off-site and industrialised timber construction.

The revised second edition explains these concepts and provides justification as to why timber is exceptionally well placed to be the material of choice for modern methods of construction (MMC) or pre-manufactured approaches. Given that both of these ideals are about better end products delivered via an efficient process, there is a need to underpin the approach with an a ­ lternative business model geared towards whole

life value. Customer satisfaction must therefore be considered with respect to not only cost but also enhanced environmental performance, quality of product and programme certainty.

How off-site methods can be used in timber construction Client and consumer understanding of the wider benefits of off-site approaches are of paramount importance given the need to think of the wider value proposition as opposed to lowest cost, which often results in lowest quality or adversarial contractual terms of engagement leading to higher than predicted costs. Chapter 4 of the new edition explains the rationale for early engagement and partnering at the design stage. In addition, key terminologies are explained throughout the text to present a standardised language for the purposes of a consistent understanding of off-site theory.

Chapter 6 demonstrates the categories and sub-categories of off-site products (panelised, modular/volumetric, hybrid and subassemblies/components) using written descriptions, photographs and schematic images. Within the off-site sub-categories, there are details on the varying levels of enhancement relative to manufacturing capability and project context (for example, >>

Figure 2: MultiPly at the V&A, London. Photo: American Hardwood Export Council

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client requirements, logistical constraints, supply chain arrangements). The new edition also provides the history of these varying systems supplemented by numerous case study examples. There are explanations of technical performance attributes, including advantages and disadvantages.

This should provide readers with an informed perspective of how these systems can be used for a given project. To provide confidence in the information, an internationally wide perspective has been taken, including contributions from other world-renowned experts in the field. The UK has also been included for enhanced contextualisation, acting as a good barometer for off-site and industrialised timber because it is a major importer, manufacturer and pioneer.

It has showcased CLT through projects such as Dalston Works (Figure 1) and employs timber frame for a large proportion of its new build housing construction, particularly in Scotland where up to 85% of new houses are formed from this off-site technique.

The UK construction market reflects the global trend for more environmentally efficient buildings, with an increasing emphasis on whole life cycle cost. International policies and legislation and devolved regulations, combined with enhanced client and end-user awareness, are necessitating improved fabric performance, as well as the qualified environmental credentials of the component parts. Chapter 4 presents these concepts and includes an explanation of circular economy and designing for circularity via DfMA+D. The use of timber as a sustainable form of construction is assessed and the concept of whole life cycle analysis is presented, including information on ensuring timber is sourced from sustainably managed forests.

Performance and challenges An inherent part of design is understanding how a material performs. Chapter 4 of the new edition explains the credentials of timber as a structural material, covering its structural, thermal and acoustic performance, both in isolation but also when combined with other materials as an off-site system, sub-assembly or composite component. Chapter 4 also explores the structural design considerations of timber buildings with respect to the European standard codes of practice and regulations for conformity and technical approval. The technical challenges of the industry are also considered (differential settlement, structural stability and disproportionate collapse) and, in particular, issues pertaining to fire performance are explained both theoretically and through case study analysis. This content makes a strong case for how off-site timber construction can create safe and serviceable buildings. www.trada.co.uk

The factory-based approach of off-site construction requires the implementation of industrialised approaches, both at the production and construction phases. Lean theory is critical to successful exploitation and must be applied consistently throughout the process. Chapter 5 provides the tools for applying this theory in both the factory and assembly phases.

In addition, the different levels of production automation are categorised, with a view to informing the factory production set-up. Critical to this change of approach is up-skilling throughout, from factory floor to the leadership at the top given the non-traditional business model of off-site construction.

Chapter 5 serves to facilitate the transfer of knowledge required for the decision-making process towards implementation – often incremental as off-site factories scale up to meet demand while evolving and standardising their approach relative to the market they serve. The publication references a multitude of sources, including regulatory documents, research outputs and case studies (Chapter 7 is dedicated to exemplary and international case study content, such as MultiPly, Figure 2) to help readers understand how these principles can be used.

Conclusion The objective of the revised publication is to demonstrate ways of delivering a more cohesive and socially, economically and environmentally sustainable industry through the application of improved business models using timber. These improved business models – which include partnering arrangements, robust product procurement strategies, material optimisation and system efficiencies – enable the industry to continually evolve and innovate through applied research and development. When these concepts are embraced, timber can readily be seen as the ideal material for a more sustainable and efficiently delivered built environment, deploying a manufacturing-based off-site approach. n

About the author

Professor Robert Hairstans Edinburgh Napier University

Further information The second edition of Off-site and industrialised timber construction: Delivering quality and efficiency is available to buy at: https://bookshop.trada.co.uk/ Timber 2020 Industry Yearbook

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Structural insulated panels: inbuilt solutions Michal Zajic and Martin Milner explain the benefits of using SIPs in construction.

Figure 1: School constructed with SIPs. Photo: Innovare Ltd

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“SIPs are engineered, load-carrying, wood-based structural elements. They are lightweight for ease of on-site assembly and deliver the structural and thermal envelope of the building in one element for walls and roofs.�

S

tructurally insulated panels (SIPs) are off-site manufactured products that can be used as wall or roof elements to deliver strength, enclosure and thermal performance. While the housing market is an obvious choice for this product, the use of SIPs as an off-site building process has a strong presence in the commercial markets for schools, colleges and offices.

This article provides an overview of the prospective application of SIPs and how the product can be used by engineers and building designers for construction solutions on the broader market applications. The article highlights professional advice available to the market on the assembly of SIP framing.

Technical overview of a SIP What is a SIP? SIPs are engineered, load-carrying, wood-based structural elements. They are lightweight for ease of on-site assembly and deliver the structural and thermal envelope of the building in one element for walls and roofs.

Structurally, a SIP comprises an outer layer of wood-based sheathing and is strengthened where necessary with insert timbers.

The strength comes from the nature of a sandwich panel technology in combination with the structural sheathing panels.

The thermal properties come from the insulation. >>

Figure 2: Structural insulated panel (SIP). Drawing: Structural Timber Association

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Figure 4: Stress distributions through a SIP under axial force and bending moment (taken from EOTA TR 019)

Figure 3: The use of SIPs in construction. Drawing: Structural Timber Association

SIPs are typically available in thicknesses ranging from 100mm to 285mm. They are manufactured in panel sizes up to 2.7m wide and can vary in length from 0.6m to 6m. Custom sizes are available, and some manufacturers offer curved SIPs for curved roof applications. For details of different SIPs manufacturers, refer to the STA website.

The functional applications are presented in Table 1.

Applications

Function

Walls – structural

To provide vertical and horizontal strength of the building as well as thermal resistance.

Walls – curtain

As an insulated cladding panel where the external skin is designed for the appropriate weather protection. Where oriented strand board (OSB) faced products are used, secondary weather protection is required.

Walls – infill

As a prefabricated panel between post and beam or framed structures to provide thermal insulation and wind load transfer.

Roofs – structural

To provide sarking or a structural deck spanning between rafters or purlins and to serve as thermal insulation.

Roofs – infill

To act as thermal insulation on top of the main structure.

Table 1: The use of SIPs in construction

SIPs transfer loads through the facing board materials separated by the rigid insulation foam core. The shear transfer to the facing boards is uniform, and the analysis is based on the tensile or compressive stress distribution in the facing boards. There is no EN code for the specific design approach, but the European Assessment Document Guideline TR019 provides guidance for prefabricated wood-based loadbearing stressed-skin panels. Companies should provide third-party approvals for their SIPs. The Structural Timber Association (STA) website offers guidance on design for SIPs under the Technical Bulletin series. www.trada.co.uk

Figure 5: SIP walls in assembly. Photo: Innovare Ltd

Fire performance The fire performance of SIPs is achieved by the application of drylining, such as plasterboard, which protects the structural member. Some manufacturers offer SIPs with factory-fitted fireresistant boards over the top of or in place of the OSB to reduce the construction stage fire risk and provide inbuilt fire robustness.

The correct specification and installation of the internal linings to both the ceiling and the wall are critical to the performance of the system in a real fire situation. >> Timber 2020 Industry Yearbook

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Building envelope With airtightness, the insulation value for superior energy efficiency is required and SIPs offer a range of U-values. The fabric-first approach supports the option to specify a lower specification heating system.

Figure 6: SIPs being erected with inbuilt drylining. Photo: Innovare Ltd

As for all designs, a fire-risk assessment should be made.

The fire robustness of a building is reliant on the strategy and protection being considered in the project fire risk and solution assessment. Regardless of the building material, the quality of workmanship can determine the fire resistance of a building.

Junction details where walls meet ceilings and where multiple service penetrations occur require quality fire stopping regardless of the structural element’s construction type.

Figure 8: The building structure is the airtight envelope.

Drawing: Structural Timber Association

Cold bridging The total heat loss expected from thermal bridging in all junctions of the building is easily measured. The cold bridging factors to include in a calculation for SIP junctions can exceed the values of accredited and enhanced construction details.

The ABC of benefits in building with SIPs The demand in offices, schools and colleges for low-energy buildings calls for the energy-saving ABC of building.

Airtightness Reduction in air permeability is achieved using the standard SIP building process allowing for airtight barriers at floor junctions. The process of forming structural joints in the panels, tapes and floor zone membranes that are included in designs enable the frame to achieve passive standard air leakage where needed. High performing values 1.5m3/m2hr at 50 pascals are commonly achieved.

Figure 9: Cold bridge detail drawing

Raising the quality levels in assembly

Figure 7: Interconnectivity of panel to panel junctions enable air tight seals.

Drawing: Structural Timber Association

www.trada.co.uk

One of the key benefits of an off-site construction process is realised by the speed and quality of delivery of premanufactured factory panels to the assembly of the building.

The STA has an assembly workbook for SIPs buildings. The workbook acts as a training tool to raise the quality of erectors and provides increased confidence for customers of SIP buildings. On completion, the workbooks require the candidate to pass a test before being accepted as an STA Assure erector; and every company under the STA banner requires at least twothirds of the erector workforce to have STA Assure status. >> Timber 2020 Industry Yearbook

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The sign-off from the installer that the as-built frame is as designed is part of the quality improvements for a confident market for SIP building delivery. Figures 10–15 provide examples from the workbooks.

Figure 12: Panel to sole plate fixing and accuracy.

Drawing: Structural Timber Association

Figure 10: SIP panel. Photo: Kingspan Ltd

Figure 13: Panel to panel assembly understood.

Drawing: Structural Timber Association

Figure 11: Roof assembly in SIP. Drawing: Structural Timber Association

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Figure 14: Understanding airtightness and assembly on site.

Drawing: Structural Timber Association

Timber structures SIPs

Figure 15: Beam installation in SIPs. Drawing: Structural Timber Association

An example of commercial application for SIPs The use of an airtight and thermally efficient panel to provide the envelope around concrete or steel-framed structures is being increasingly employed by designers to deliver projects.

One example is the £10m Centre for Advanced Building Technology at Dudley College. The project had a strategic design brief for Passivhaus levels of insulation. The need for an airtight envelope with high levels of thermal insulation values prompted the design team to seek solutions. The benefits of pre-assembled SIPs that could be wrapped around the steel and concrete frame was realised in this build. n

Dudley College where SIPs form an external envelope. Photo: Speller Metcalfe

About the author

Martin Milner Managing Director Milner Associates

Michal Zajic Associate Director Milner Associates

Further information • WIS 2/3-68 Structural insulated panels (SIPs): introduction for specifiers, BM TRADA, 2015 • WIS 2/3-69 Structural insulated panels (SIPs): structural principles and design, BM TRADA, 2015 • Hairstans, R., Off-site and industrialised timber construction, BM TRADA, 2019

References 1. European organisation for technical approvals (EOTA) TR 019 ‘Calculation models for prefabricated wood-based loadbearing stressed skin panels for use in roofs’, February 2005. Available at: www.eota.eu 2. www.structuraltimber.co.uk Dudley College construction where SIPs envelopes is being installed. Photo: Glossfords

www.trada.co.uk

3. www.structuraltimber.co.uk/members Timber 2020 Industry Yearbook

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Mass timber for tall buildings: a new era dawns A new building holds the crown for the world’s tallest timber building.

Daniel Safarik showcases Mjøstårnet and the international industry developments that continue to inspire timber’s ever-higher ambitions.

Mjøstårnet – Brumunddal, Norway.

Photo: Moelven / Nina Rundsveen

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“As energy sources are set to decarbonise, and with tighter building regulations in terms of building performance, the focus is being drawn towards the significant potential for implementing climate change mitigation actions by choosing construction materials with the lowest environmental impact.”

S

ome indicators suggest that the beginning of the third decade of this millennium will be remembered by many practitioners in the built environment industry as the moment when mass timber broke into the mainstream of high-rise construction. Standout projects have been constructed recently, which suggests that some of the cultural and code challenges are being overcome.

In addition, industry and government entities in North America have signalled their commitment to increasing the use of mass timber in construction.

Mjøstårnet A significant construction milestone was hit in March 2019, when the 18-storey Mjøstårnet building was completed in Brumunddal, Norway. The mixed-use building, at 85.4 metres, is now the world’s tallest timber building, verified by the Council on Tall Buildings and Urban Habitat (CTBUH). The previous record had been held by Treet, also in Norway, at 49 metres.

The design concept of Mjøstårnet was inspired by the Paris Agreement to combat climate change and began as an idea to reduce carbon dioxide emissions while sustainably sourcing construction materials locally.

All key structural components of Mjøstårnet are composed of engineered timber, using glued laminated timber (glulam) for beams and columns and cross-laminated timber (CLT) for the core walls containing the building’s elevator and stairway shafts. The glulam columns were fabricated with pre-drilled holes and assembled on-site into vertical trusses of up to five floors in height, providing stability to horizontal and vertical forces. Floor slabs for levels 11 and below are also crafted from timber beams, topped with laminated veneer lumber (LVL) and a thin 50mm layer of concrete for acoustical and vibrational performance, while levels 12 and above have floor slabs fully composed of concrete to increase weight and achieve the desired dynamic behaviour in periods of strong winds.

Mjøstårnet is appropriately located in an area of Norway known for its forestry and wood-processing industry, and sits just metres away from Mjøsa, the country’s largest lake. >> www.trada.co.uk

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Staircase inside Mjøstårnet. Photo: Moelven / Nina Rundsveen

According to the revised criteria for timber structures: ‘ … both the main vertical/lateral structural elements and the floor spanning system must be constructed from timber. An “all-timber” structure may include the use of localized nontimber connections between timber elements. A building of timber construction with a floor system of concrete planks, or concrete slab on top of timber beams, is still considered a “timber” structure, as the concrete elements are not acting as the primary structure.’

Industry standards and government support in North America Mjøstårnet. Photo: Moelven / Nina Rundsveen

Wood was chosen as the structural material due to recent advancements in the field of mass timber – particularly following the increased availability of large glulam and CLT structural elements. Notably, wood is also the world’s only truly renewable building material, as it sequesters carbon throughout its life cycle.

At industry level in North America, the Think Wood campaign (a collaboration between the Softwood Lumber Board (SLB), WoodWorks – Wood Products Council, American Wood Council and Canadian Wood Council) has gained ground over the past year. Its activities included the publication of its CLT Handbook, establishment of a research library, and coprogramming a Timber Rising track at the CTBUH 2019 World Congress2 in Chicago. This track featured presentations by senior representatives of the US Forest Service, SLB, >>

Moelven Limitre, the project’s structural engineer, supplied glulam columns, beams and diagonals, and CLT elevator shafts, stairs and floor slabs. The company was also responsible for the direct installation of the wooden structures in the building.

Updates to CTBUH Height Criteria The designation coincided with the amendment of CTBUH Height Criteria1 – the official guidelines upon which tall buildings are measured – to include timber as a recognised structural material. The update was prompted by the recent uptick of tall timber buildings currently under construction or in planning around the world, and the interest of involved stakeholders and the general public in defining what truly constitutes a structural timber system. www.trada.co.uk

Inside Mjøstårnet. Photo: Moelven / Nina Rundsveen

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Wood Products Council, and a number of academic experts, architecture, construction and engineering professionals involved in tall timber projects.

According to Think Wood,3 code authorities are responding to the growing demand in the marketplace for safety standards that can suit commercial needs.

‘In response to growing support for taller timber structures throughout the United States, the International Code Council4 approved 14 changes to the International Building Code (IBC) in early 2019, permitting mass timber construction up to 270 feet (~80 metres). Similarly, Canada is also making changes to its building code, opening up new opportunities for taller wood designs.’

Other recent and anticipated near-term code updates include: • Oregon modified its building code in 2018 to permit tall building construction up to 18 storeys.

• Washington State has taken a similar step, effective in spring 2019.

• As of spring 2019, British Columbia became the first Canadian province to allow timber construction up to 12 storeys.

• Backed by expert opinions and testing, the ICC will introduce a new building code in 2021 that will help streamline and standardise tall wood construction.

Internal wall formation of Mjøstårnet. Photo: Rune Abrahamsen

Further, CTBUH and the US Forest Service have collaborated to produce a series of videos and podcasts with mass timber industry experts entitled Mass Timber for the Tall Building Industry, as well as a digital and print publication containing research papers by presenters at the 2019 World Congress. n

About the author

Daniel Safarik Editor-in-Chief The Council on Tall Buildings and Urban Habitat

Further reading • Cross-laminated timber: Design and performance, Revised reprint, BM TRADA, 2019 • WIS 2/3-62 Cross-laminated timber: structural principles, BM TRADA, 2016

References

Looking up from the base of Mjøstårnet. Photo: Rune Abrahamsen

www.trada.co.uk

1. http://ctbuh.org/criteria 2. https://ctbuh2019.com 3. www.thinkwood.com/building-better/taller-buildings 4. www.iccsafe.org/codes-tech-support/cs/icc-ad-hoccommittee-on-tall-wood-buildings Timber 2020 Industry Yearbook

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When extinction is a good thing: fire in mass timber buildings Even among experienced developers and engineers, the performance of mass timber buildings in fire is a sensitive and often misunderstood topic. Wojtek Serwatka summarises the current state of knowledge in the industry regarding self-extinction in mass timber structures and its relation to overall fire safety strategy.

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hat comes to mind when you hear the term ‘extinction’? If you were a search engine, you’d probably summon up images of post-apocalyptic desert land, sun-dried bones or even poor artworks of dinosaurs. In no way does it appear as a desirable scenario.

However, fire engineers not only wish for extinction, but also relentlessly search for methods to design for it.

This article draws on the ‘Fire Safety Challenges of Tall Wood Buildings’ research project conducted by National Fire Protection Agency (NFPA) in collaboration with National Research Council (NRC) Canada, Research Institute of Sweden (RISE) and National Institute of Standards and Technology (NIST).

analytical and numerical analysis in fire engineering is based on evaluation of compartment fire dynamics.

A typical compartment fire goes through three stages: • growth • fully developed • decay.

Most importantly, every real fire eventually runs out of fuel and will self-extinguish.

Compartment fire One of the principal methods used in fire strategies to ensure safety in buildings is compartmentation. It is especially important in high-rise residential buildings, where a defend-in-place policy is often implemented.

In this strategy, firefighters must enter the building and fight the fire from within, while the occupants are waiting in their flats for an evacuation cue once the fire is contained. Fire-fighting operations and limitations in simultaneous evacuation of the occupants are the reasons why many regulatory frameworks do not permit inclusion of combustible materials within the building structure or external envelope above a certain height.

If the effects of the fire can be confined to one compartment, and sufficient protection or redundancy is ensured to the affected structural members, the fire will not endanger occupants nor affect the integrity of the building. Based on this principle, the majority of www.trada.co.uk

Figure 1: Stages of a typical compartment fire. Source: Entuitive

However, the use of mass timber changes many assumptions traditionally used in the assessment of compartment fire dynamics. Studies 2,5,10,11 have shown that the use of exposed (or inadequately protected) mass timber panels results in a steeper growth phase, with flashover occurring earlier than the baseline, and in many cases continuing burning after all compartment fuel load has been consumed. Prolonged burning also increases the exposure time of the facade to the effects of the fire. Therefore the methods developed for conventional materials, and the assumption that they do not contribute to the fire load, no longer apply for mass timber buildings. >> Timber 2020 Industry Yearbook

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in a compartment with exposed timber surfaces, either by design or failure in protection, can remain in a continuous, fully developed stage or re-intensify during a decay phase.2 Assessing the fire safety for mass timber compartments solely in terms of fire resistance periods in a direct sense (ie the compartment resists fire for X minutes) would be a sign of a faulty fire protection strategy.

Contribution to the fire Figure 2: Possible scenarios of a fire in a timber compartment. Source: Entuitive, after Law (2019)1

Burn-out The UK Building Regulations set out a series of requirements for the fire safety of buildings. Unlike other countries, the UK requirements tend to set a performance goal, rather than defining a prescriptive route to achieving it. However, these requirements are often vague and inconclusive:

In full-scale compartment tests, it is found that, for large areas of exposed CLT surfaces, timber’s contribution to the total heat release rate can exceed that of a fuel load (10MW baseline value for tests presented in Figure 1). However, a higher heat release rate does not necessarily pose a great issue for fire engineers – the structure and separation measures can be designed to cope with a more severe fire. The real question is: ‘Will the timber structure self-extinguish or continue to burn?’3

‘The building shall be designed and constructed so that, in the event of the fire, its stability will be maintained for the reasonable period.’ (Part B Fire Safety, Schedule 1, Building Regulations 2010) The question that immediately follows is: what is ‘reasonable’?

To answer this question, one must understand what the regulator is trying to enforce: a design for burn-out.

The modern fire rating system stems from ‘Post-war building studies no. 20’. The document recommends one-, two- and four-hour resistance periods for various types of buildings or occupancies. The period of required fire resistance was based on an anticipated fuel load and the longest possible duration of the fire event. Using this approach results in an indefinite fire resistance of the structure, as it can withstand the most severe fire anticipated until all fire load is burned-out.1 The concept of burn-out is embedded within the current Building Regulations and Approved Document B (ADB). The required fire resistance period given in Appendix B to ADB (for example, 60 minutes or 90 minutes) are historically derived from estimates for the lengths of time it takes for all combustible content to be consumed, and the fire self-extinguishes. The idea of achieving a resistance to burn-out is very powerful, as this (among other conditions) establishes that the building is safe for various activities associated with a fire strategy: defend-in-place policy, prolonged evacuation or safe fire-fighting from the inside of the building.

To use the concept of burn-out in mass timber buildings, one must prove that a compartment does not behave inherently differently to those in conventional buildings. However, a fire www.trada.co.uk

Figure 3: Contribution to the fire load of mass timber in full-scale tests.

Source: Brandon (2018)2

Feedback loop In isolation, timber typically undergoes self-extinction as the energy balance is tilted towards heat losses. However, the presence of an external heat flux can create a self-propelling feedback loop between engaged timber members. This can lead to continuous burning much longer than an anticipated duration of the fire indicated by Approved Document B. >> Timber 2020 Industry Yearbook

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Ventilation opening and facade exposure A smaller opening size results in an under-ventilated fire with lower temperatures inside the compartment. In contrast, a larger opening leads to an increased burning rate and earlier fire decay, inflicting a shorter yet more intense fire impact on structural timber. Increasing a ventilation opening eventually leads to a fully fuel-controlled fire and further increase in size does not change the compartment temperatures.5 A larger ventilation opening also results in a more intense exposure of the external envelope to fire due to increased convective heat losses.

Post-fire loadbearing capacity The mechanical properties of timber change at elevated temperatures, long before pyrolysis or combustion occurs. At 200°C, the material has already lost 85% of its ambient loadbearing capacity (Figure 6). Because timber is a poor heat conductor, with prolonged heating in fire conditions, the temperature (and thus mechanical properties) will vary across the depth.

Figure 4: Feedback between exposed wall and ceiling CLT panels. Source: Entuitive, after Law (2019)1

Delamination The feedback loop and increased burning can also be created by a single panel. If delamination occurs, it becomes an external heat flux to the rest of the member. In fact, delamination was identified as one of the main causes of a secondary flashover in timber compartments during full-scale tests.3 More rigorous standards for the fire performance of adhesives used in engineered timber products are being introduced in the US.4 New adhesives and stricter regulation will likely solve the delamination problem in the future and allow designers to treat CLT as monolithic. However, these standards are not yet in place worldwide.

Figure 6: Reduction of mechanical properties of timber with temperature.

Source: BSI (2009)6

Post-fire loadbearing capacity of timber members must be accounted for in the design process. Timber members may still experience reduction in properties for some time after the fire has gone out, as heat penetrates to the previously unaffected core of the members.

Figure 5: Delamination can be a cause of a secondary flashover. Source: Entuitive

Certain orientations of exposed CLT panels are more susceptible to not reaching self-extinction: large exposed surfaces in small compartments or exposed corners (wall to wall or wall to ceiling). Furthermore, the compartment fire dynamics are heavily influenced by the size and position of the ventilation opening (and therefore the availability of oxygen necessary for combustion).

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When the duration and intensity of the fire (including the contribution from mass timber) is known, the temperature profile across the load-bearing member can be evaluated with a finite difference method.

Design solutions A common design solution implemented in mass timber buildings is encapsulating the timber entirely in plasterboard, thus protecting the timber surface from reaching 200°C (the onset of thermal decomposition7). The time to reach that threshold shall be longer than the duration of the fire.

Timber structures Fire

Installation of plasterboard protection can be very effective in avoiding a significant change in the compartment fire dynamics, allowing the standard design procedures for concrete or steel buildings to be followed. However, as with any protection method, it can fail if the specification, material or installation method is faulty.

Stakeholders often seek to expose part of the timber structure, as it is visually pleasing and results in a warm, welcoming space. Issues arising with exposed structural timber in buildings do not mean the designer cannot seek to expose some timber.

The question here remains ‘what is the safe threshold?’ – in other words, how much exposed timber is ‘too much’?

Thicken laminates In large compartments with a relatively small area of timber exposed, the risk of a feedback loop created by an interaction between smouldering panels is decreased. However, a secondary flashover can still occur due to an external heat flux on the structural panel originating from delaminated layers of CLT.3

evaluated. On a global, compartment scale the heat balance can be expressed with the following equation:1

Where: q̇ ”FB – feedback per unit area q̇ c – energy released due to combustion q̇ w – energy lost through walls q̇ rad – energy lost through the opening by radiation q̇ conv – energy lost through the opening by convection Aw – area of the walls

Figure 8: Compartment fire dynamics – macro-scale energy balance.

Source: Entuitive, after Law (2019)1

Figure 7: Thicker outer laminates can add a layer of protection and redundancy in the overall fire safety strategy. Source: Entuitive

The designer can establish a condition in which the entire fire load in the compartment has combusted and the char line has not yet reached the first glueline by increasing the thickness of the outer laminae.

Even though a design rule to calculate the required thickness of outermost laminate could be developed, a step-by-step method is unlikely to appear in design guides in the next couple of years. Every design would have to be solved from first principles based on the test results or numerical studies.

As the standard fire curve does not take into account a decay phase, parametric or natural fire curves should be used.3

The relationship above allows the average heat flux feedback on the walls to be established, if the properties of the compartment fire are known. Of course, the question arises: ‘What is the limiting value for q̇ ”FB for self-extinction to occur?’ This can be evaluated with an equation for mass burning rate ṁ”f :8

Where: q̇ ”EXT – external heat flux

For smaller compartments, thickening laminates alone will not guarantee safety. In isolation (which can be considered the case for some large compartments), the charring rate is relatively predictable, but self-extinction in small compartments is not.

Solve heat balance equation Based on the geometry of the compartment and orientation of exposed members, a condition for self-extinction can be www.trada.co.uk

Figure 9: Combustion of timber – micro-scale energy balance. Source: Entuitive, after Law (2019)1

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A threshold value of the burning rate ṁ”f for timber to reach self-extinction is between 2.5 g/m2s to 5 g/m2s.7 After all combustible content of the compartment is consumed, the only source of external heat flux on timber is the feedback between the panels (q̇ ”EXT= q̇ ”FB ). This concept allows for establishing the connection between micro- and macroscale heat balance equations and evaluating if selfextinction is reached.

The equations shown above are difficult to solve in real engineering situations. However, understanding these relationships is crucial to understanding how a timber compartment can be designed to exhibit self-extinction, resulting in a safe design. The main principle is that the heat losses from the compartment must be high enough to limit the incident heat flux on the timber surface, leading to selfextinction. Heat losses can be altered either by the size and orientation of openings, or the build-up of the compartment walls.

The designers have a lot of control over these parameters.1 Therefore the compartment can be purposefully designed to include exposed timber surfaces but lead to self-extinction in all design scenarios.

Test every configuration Another method of justifying the safety of a building with exposed timber surfaces is to test every compartment configuration present in the building.

While at a first glance it may sound like a preposterous waste of a project budget, in some cases it may be a practical solution. The nature of and the incentives behind erecting CLT buildings, especially in the residential sector, dictate repetitive and modular units. It is possible that only a few configurations would need to be tested to establish the fire safety of an entire high-rise building.

Figure 10: Conceptual design of a mass timber residential tower proposed for the Canadian market. Source: Arch Daily (2017)9

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Use known arrangements It is useful to consider CLT compartments that have already been tested when designing a mass timber building. A variety of full-scale tests have already been conducted around the world.5,10,11 The designer could specify the compartments to be of similar size and panel arrangement to ones tested, thereby ensuring the availability of testing data from day one. In many cases, the researchers’ intent was to examine the behaviour of compartments that could be found in modern tall buildings,5 so such arrangements could potentially be readily used in design.

Timber structures Fire

Such practice was incorporated in recent revisions of the International Building Code (USA) and the National Building Code of Canada, allowing for a limited amount of timber to be exposed internally in buildings up to 12 storeys in arrangements that have been tested in the past. There is a potential for the UK to follow with a similar revision, albeit placing more emphasis on a performance goal of such designs.

References 1. Law, A., Fire safety design: we need to talk about timber, The Institution of Structural Engineers International HQ, 19 June 2019

2. Brandon, D., Fire safety challenges of tall wood buildings - Phase 2: Task 4 - engineering methods, RISE Research Institute of Sweden, 2018

Conclusions Extinction. Burn-out. These terms are typically used to convey a negative message. However, in the case of a fire event in a timber building, that is exactly what we want to achieve.

3. Crielaard, R., van de Kulien, J.W., Terwel, K., Ravenshorst,

Mass timber structures, particularly mid- and high-rise buildings, are beyond the scope of typical building situations that Approved Document B is intended for. Considering the ambiguity in UK Building Regulations regarding the fire safety of mass timber buildings, it is the designers and engineers that must be ‘reasonable’ and provide safe and sustainable structures now and for future generations.*

4. ANSI, ANSI/APA PRG 320: Standard for Performance-Rated

Evaluation of self-extinction in compartments with exposed timber surfaces must form a part of a total fire safety strategy.12 Therefore, the co-operation between stakeholders and fire engineers is most effective when the latter are involved from the very early stages of the design.

As fire engineers, we can help the clients to evaluate the proposed design to ensure that it performs adequately and is safe to be occupied. This can be only done by applying fundamental knowledge and solving the problem with an academic approach, rather than relying on regulation-based solutions and step-by-step design guides. n * At the time of writing, timber cannot be used in the external walls of residential buildings in England and Wales that have a floor over 18m, and consultation about reducing this to 11m, among other things, is currently ongoing (Scotland also has restrictions). However, this is not a blanket prohibition of all-timber buildings or timber-hybrid buildings above these heights subject to the construction of the external walls.

G. and Steenbakkers, P., ‘Self-extinguishment of cross-

laminated timber’, Fire Safety Journal 105: 244-260, 2019

Cross-Laminated Timber, American National Standard, The Engineered Wood Association, 2018

5. Su, J., and Lafrance, P.R., Fire safety challenges of tall

wood buildings – Phase 2: Task 2 & 3 – cross laminated

timber compartment fire tests, National Research Council of Canada, 2018

6. BS EN 1995-1-2: 2004 Eurocode 5: Design of timber

structures. Part 1-2: General. Structural fire design, BSI, 2009

7. Bartlett, A.I., Hadden, R.M. and Bisby, L.A., ‘A Review

of Factors Affecting the Burning Behaviour of Wood for

Application to Tall Timber Construction’, Fire Technology 55 (1): 1-49, 2019

8. Emberley, R.L., Fundamentals for the Fire Design of Cross

Laminated Timber Buildings, University of Queensland, 2017

9. Arch Daily, Penda designs modular timber tower inspired by Habitat 67 for Toronto, 2017. Available at: www.archdaily.

com/877049/penda-designs-modular-timber-tower-inspiredby-habitat-67-for-toronto

10. Zelinka, S., Hasburgh, L.E., Bourne, K.J., Tucholski, D.R. and Ouellette, J.P., Compartment fire testing of a two-

storey mass timber building, United States Department of Agriculture, 2018

11. Emberley, R., Gorska-Putynska, C., Bolanos, A., Lucherini,

About the author

A., Solarte, A., Soriguer, D., Gutierrez-Gonzales, M. et

al., ‘Description of small and large-scale cross laminated timber fire tests’, Fire Safety Journal, 2017

12. Bartlett, A, Wiesner, F., Hadden, R., Lane, B., Lawrence, A., Wojtek Serwatka Engineer – Fire & Structural Entuitive

www.trada.co.uk

Palma, P. and Frangi, A., ‘Needs for total fire engineering of mass timber buildings’, World Conference on Timber Engineering, Vienna, 2016

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Enabling tomorrow’s timber designers today: timber education is essential to excite, empower and inform engineering students James Norman and Andrew Thomson are passionate advocates of sustainable building. They have written a new, accessible textbook on structural timber design, full of essential information, worked examples and clear illustrations, and offer these reflections.

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e believe timber use in construction is essential for the sustainability of our planet. Designing timber structures: an introduction aims to make timber, as a structural building material, more accessible.

The wider implication is this: if we can make the timber design process easier for students and their lecturers to engage with, this will encourage the wider exploration of timber in structural engineering by our future designers and engineering professionals.

Who is the book aimed at?

Our new textbook is aimed at those with some basic structural or engineering knowledge, but who have never used timber to design a building. They might be university engineering undergraduates or postgraduates, or individuals undertaking courses with the IStructE. The idea is to introduce these students to design more generally and timber design specifically. We hope this book will open up a new world of knowledge, encouraging our future professionals to design buildings with timber, but also to see timber as a viable, exciting and natural material choice.

Concepts such as bending and deflection are both explained and illustrated.

Colour illustrations reflect the hands-on approach

www.trada.co.uk

Designing timber structures: an introduction will help readers access a wide variety of technical information, from Eurocodes to the latest TRADA Wood Information Sheets. It aims to be a companion to help students navigate designing with timber, to understand the technical calculations required and where additional information to support their design work can be located. By the time they have finished this book, students should understand the difference between kmod and kdef, but more than that they will understand why these different factors are important. >> Timber 2020 Industry Yearbook

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What does the book cover?

The book starts with a thorough introduction to timber as a material, outlining the different material properties and the quirks of designing with a natural building material. Four technical chapters then build knowledge progressively. They cover simple timber construction, showing students how to design: • sawn timber joists • stud wall design and construction, including consideration of stability • glulam frames, including consideration of connections • CLT structures, including consideration of vibration.

The book concludes with some wider considerations such as fire, acoustics, detailing, reuse and robustness.

Each of the different technical chapters includes a variety of colour illustrations from technical sketches and graphs to plan drawings and site photographs. This highly-visual approach enables students to read the technical detail, then see it in application to cement their understanding. Each technical chapter ends with a step-by-step worked example to enable students to see how you might actually go about designing and detailing with the different products.

All four design chapters conclude with a comprehensive worked example.

Why a book on timber?

The world is changing, and fast. The UK needs to be carbon neutral by 2050. The world needs to greatly increase circular economies. We believe that there are two important parts to the solution: • substantially more re-use of existing buildings • building with timber.

By building with timber we are building with one of the only renewable structural materials. (Straw and hemp are valuable ecologically friendly materials but we leave them aside here as generally they are used as insulation, not for structure.) We can increase the number of well-managed forests in the world by increasing demand for certified structural timber. Both are hugely beneficial when the world desperately needs more trees.

Worked examples show students each step in a design calculation.

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Equally important is the attitude of young people towards the environment. Students want to learn about renewable building materials; they want to design buildings with low- or zerocarbon footprints – from both a construction and an operational viewpoint. This book will introduce students to the basic concepts of timber design in an approachable and informative style, giving them confidence to explore this material further. >>

Timber structures Engineering

The drawings demonstrate ideas such as how the annual increment of growth of trees is calculated.

What can industry do?

Final thoughts

It feels like the timber construction industry is in a really exciting place, but when writing this book, a number of questions and challenges came to our minds. These are not intended as criticisms of the timber industry, but more observations of how students feel if they try and design using timber.

Timber is not routinely covered in all engineering courses.

Lecturers can reinvigorate their enthusiasm by using this book and further exploring recent developments in timber design.

Timber in construction is gaining in prominence, nowhere more clearly than in this year’s RIBA Stirling prize, where the use of timber in so many of the shortlisted entries was dynamic, structural and sculptural. Steel and concrete are valuable, but timber is the future; let’s get students excited! n

1. More standard sizing would be helpful. When different suppliers have their own sizing system, it makes it really hard to know where to start. By standardizing sizes, timber would become more accessible. This is apparent across a range of products, whether CLT, glulam or sawn timber.

2. A greater sharing of information. There is, of course, competitive advantage to holding intellectual property.

But if we want timber construction to grow, we need to remove barriers to growth and availability. Accessibility of information, especially for the latest engineered timber products, is a key consideration.

3. Involve the engineers of the future in your business.

Sponsor student events to encourage designing and building in timber. Offer free information to students or take your knowledge into universities and colleges to help educate students in all the amazing ways timber can be used in structural design. The earlier we can connect students to the timber industry, the more likely they are to use the material in their designs once they qualify. www.trada.co.uk

About the authors

Dr James Norman Associate Professor of Sustainable Design CAME School Education Director, University of Bristol

Dr Andrew Thomson Teaching Fellow, Department of Architecture and Civil Engineering, University of Bath

Further information Designing timber structures: an introduction will be published in 2020. Available from https://bookshop.trada.co.uk Timber 2020 Industry Yearbook

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Achieving longevity in external structures: Croome Chinese Bridge Andrew Holloway guides us through the reconstruction project for the Chinese Bridge at Croome Park, covering the specification, design, fabrication, preservative treatments and planning for the maintenance of the timber components.

I

n 2013 The Green Oak Carpentry Company was commissioned by the National Trust to reconstruct the Chinese Bridge at Croome Park House in Worcestershire, following William Halfpenny’s original drawings dated 1754. The structure is part of a Grade I listed landscape designed by Capability Brown.

The bridge as it stands today has a striking resemblance to the original and Capability Brown’s landscape is restored to its former splendour.

Completed in 2015, the project was ably managed by The Morton Partnership, who undertook the engineering.

The Chinese Bridge, Croome Park House. Photo: Duncan Nichol

Fabrication

3D model of Croome Bridge. Note that the grey timbers are greenheart and the brown are oak. This is to ensure that any components in contact with the ground or water are of adequate natural durability. Illustration: The Green Oak Carpentry Company

Then and now Richard Wilson’s painting Croome Court, Worcestershire (1758–59) shows the bridge in the landscape nicely juxtaposed with the main house and the family chapel, forming a pastoral idyll. www.trada.co.uk

The chapel tower can just be seen between the main house and the bridge. Image: Richard Wilson, Croome Court, Worcestershire, 1758–59

Traditional carpentry is based on a system of prefabrication, using lofting, in effect drawing the frame full size on the workshop floor, carefully setting the timber sections over plumb to their marks, and accurately scribing the joints. Each ‘lay-up’ or frame is meticulously jointed, and T-shaped tapered steel framing pins used to trial assemble. >>

Section of handrail assembled on the workshop floor. Note the T-shaped steel framing pins driven into the mortise and tenon joints to check the fit and ‘draw’ of the joint. Photo: Rob Kennard, The Green Oak Carpentry Company

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New in the TRADA bookshop

• Incorporates the changes made to Eurocode 5 and the supporting standards

• Must-have reference for engineers and specifiers • Second edition includes guidance on cross-laminated timber, panelised products, composites, fasteners and connections, fire design and durability

Order online at

http://bookshop.trada.co.uk

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Timber structures Green oak

Timber selection One of the main decisions to be made early on is timber selection. Temperate hardwoods such as European oak (Quercus robur/Quercus Petrea) and chestnut (Castanea sativa) may be expected to last up to 50 years under Use Class 3 exposure, with the proviso that the timber is correctly specified and the structure is suitably maintained. All sapwood must be excluded as it is not durable and lasts only a few years in external conditions, being far more susceptible to fungi than the heartwood.

The pylons of the bridge are permanently immersed in fresh water and, as such, are Use Class 4 exposure. For this reason we suggested the use of a very durable tropical timber for all components in contact with the ground or permanently immersed. We chose to use greenheart (Chlorocardium rodiei), although ekki (Lophira alata), balau (Shorea spp), or iroko (Milicia excelsa) might also have been good choices. Sourcing these timbers sustainably may prove difficult as true FSC®certified supply is not always easy to come by, but supplies are available if you look carefully.

Don’t forget to consider softwoods for external joinery. Species such as yellow pine (Pinus Strobus), Siberian larch (Larix sibirica) or Scots pine (European redwood) (Pinus sylvestris) are worth considering and, when correctly specified, detailed and maintained, are capable of providing long service.

the other popular hardwoods and softwoods of greater natural durability are only very rarely treated with wood preservatives because of their low permeability, but chiefly because they have a good natural durability in any case.

Also, most large sections of structural timber are used fresh sawn or ‘green’ and hence the moisture content will be above the fibre saturation point of approximately 30%, and as a consequence absorption would be too low. That said, brush treatment some years after installation may be worth considering for accessible timbers and might form part of an effective maintenance programme.

You might consider inserting boron rods (disodium octaborate tetrahydrate, a wood preservative) into pockets drilled into the timber. Plastic caps are available from suppliers to seal the pocket. As the moisture content of the timber rises above 20%, the boron diffuses into the timber. The locations of these pockets need to be clearly marked and accessible as they will need to be replaced every three or four years. We carried out this intervention to good effect on the Polesden Lacey Bridge, also built for the National Trust.

Coatings To improve longevity, we painted all mortise and tenon components of the Croome Bridge structure with an oil bound distemper prior to assembly. The client was intending to paint the entire structure with the same paint but this has yet to be executed. There is little doubt that this is a really worthwhile intervention and will greatly help improve the longevity of the structure. The weather will inevitably penetrate the joints; however, sealing the end grain, combined with the fungicidal and insecticidal properties of a lime-based finish, will slow the commencement of decay. >>

End grain of a 300-year-old Scots pine (Pinus sylvestris) log from a Karelian-style farmhouse of log construction, showing exceptionally slow growth and durability.

Photo: Andrew Holloway, Kizhi State Open-Air Museum, Republic of Karelia, Russia

Treatment For environmental reasons, some would argue strongly against treating timber with a wood preservative. However, the case for treatment can be justified where treatment would significantly increase the life of the timber. Oak and most of

Components of Croome Bridge being painted prior to transportation.

Photo: Rob Kennard, The Green Oak Carpentry Company

FSC-A000503

www.trada.co.uk

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Traditional linseed oil-based paints rely on the quality of the oil to perform well and do not form coatings that crack and split. However, modern acrylic and alkyd/acrylic-based paints for wood are capable of providing longer service, while wood stains also provide a choice for the specifier.

The template drawings for Basingstoke Canal lock gates show that, once measured up on site, the dimensions are entered onto the drawings ready for manufacture.

• Consult a good paint specialist for information on the appropriate coatings for any given situation.

• Modern paint and stain formulations resist flaking and peeling, and fail only gradually through surface erosion/ weathering.

• Consult a good wood finishes specialist for information on the appropriate coatings for any given situation.

As far as maintenance is concerned, finishes are available that require only a light brushing and recoating, rather than cleaning back to bare wood with strippers or blow-torch.

Posts and rails painted ready for transportation. Photo: Rob Kennard, The Green Oak Carpentry Company

Lock gates We have rebuilt most of the lock gates for the Basingstoke Canal and Wey Navigation. For these structures we used Frenchsourced QPE grade oak with 24 annual growth rings to the inch to maximise longevity. All the joints are painted with tar paint to seal before assembly.

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Template drawings for Basingstoke Canal lock gates. Drawing: The Green Oak Carpentry Company Ltd

Detailing It cannot be over-emphasised that careful specification and detailing is the key to success in the use of timber in external structures. Much of it is common sense. Where cladding or structure is exposed, always detail to allow the water to run off easily and avoid water traps or, where it is unavoidable, promote drainage and ventilation in other ways. For example, in a mortise, vent with 9mm weep holes drilled through the base at 40mm centres.

QPE grade oak with 24 annual growth rings per 24mm. Photo: Andrew Holloway, The Green Oak Carpentry Company

Timber 2020 Industry Yearbook

The end-grain of timber is much more porous than the cross-grain. Therefore, wherever possible, seal the end grain and keep it up off the ground, away from the wet and above the splash zone.

Timber structures Green oak

Where putting in fixings, for decking for example, consider how it might be made easier to remove later on for replacement or maintenance. Do not over-tighten screws and use adequate pilot and clearance holes. Consider applying a little bit of graphite grease on the fixings before fixing. A little bit of care at the time of building can save a lot of heartache later.

Maintenance No description of how to maximise longevity would be complete without emphasising the importance of maintenance.

Clearing away debris from around the structure, keeping the deck clean and application of occasional coatings or preservative treatment will all make a difference. n Scarf joint in the main carriage beams. The joint shown here is on its side hence in the finished structure the blades are oriented plumb, allowing water to drain through the joint. Anti-capillary grooves can be added by drilling down through at the mating faces of the scarf joint to assist in drainage. Photo: Andrew Holloway, The Green Oak Carpentry Company.

Apply slopes, drips and weatherings to upward-facing surfaces to allow water to run off as quickly as possible. A good example is thatch: where thatch is used on roofs generally you will find the pitch of the roof is kept above 45 degrees, often more, each degree of pitch over 45 degrees is deemed to add a year to the life of the covering.

Design for ease of maintenance. It is clear that someone will need to access the structure to maintain it, whether it is lifting decking boards or recoating with paint. Provide access points and lodgements for ladders or scaffold.

About the author

Andrew Holloway Director The Green Oak Carpentry Company

Further reading • Green oak in construction, ISBN 978-1-900510-455, TRADA Technology Ltd, 2007 • WIS 2/3-65 Principles of green oak construction, Exova BM TRADA, 2018 • Mettem, C., Timber bridges, ISBN 978-0-415577-960, TRADA Technology Ltd, 2011

The completed Croome Bridge structure as it stands today. Photo: Duncan Nichol

www.trada.co.uk

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Inspecting timber bridges

Specialised inspections for timber bridges are essential to prolong the service life of a bridge, and most importantly provide a safe structure for the intended use. Inspections provide an enhanced level of detail and expertise, complementing regular maintenance examinations of structures carried out by the asset managers. Nick Clifford explains.

Montmorency bridge, Quebec, Canada. Photo: Cephas (https://creativecommons.org/licenses/by-sa/3.0/deed.en)

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“Timber as a material has a range of advantages for structural use. It is relatively lightweight, easy to work with, flexible in size and performance and, if sourced in the correct way, sustainable.”

T

imber bridges are designed and constructed in a variety of forms for road networks, railway infrastructure, viaducts, aqueducts and pedestrian walkways. This can be a timber structure built entirely from timber or where timber is the chosen material for certain components.

Building timber bridges Timber as a material has a range of advantages for structural use. It is relatively lightweight, easy to work with, flexible in size and performance and, if sourced in the correct way, sustainable. In addition, if designed and maintained correctly, the service life of timber components can match or exceed that of alternative materials.

A range of softwoods and more durable, stronger hardwoods are used throughout the construction of bridges. The variety of timber species, type of wood preservation and natural variability of timber can present asset managers with difficult decisions. It is this variability that can make it difficult to predict the performance of timber components.

Historically, solid timber has been the choice for the construction of timber bridges. However, in recent decades alternative ways of using timber have become increasingly available. Glued laminated timber (glulam) is an excellent way of producing large sections with longer spans of consistent quality. A range of ‘durable’ timber species can be used in conjunction with an appropriate type of structural adhesive that is suitable for exterior use. Square sections are commonly produced, however, glulam manufacture is flexible enough to produce a range of shapes and sizes and – particularly desirable for bridges – in curved lengths.

Modified woods are now becoming a more popular choice of species for glulam components, with their improved durability when compared to many natural timber species, provided that research and testing has proven that they have the desired structural performance.

Bridge inspection: scope of the timber survey There are two factors to consider in bridge inspection. These are condition and strength, and are inextricably linked. >> www.trada.co.uk

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Timber and timber-based products become vulnerable to fungal decay if the moisture content exceeds the decay threshold, which is nominally 20%. The service environment of timber bridges results in periodical exposure to wetting for prolonged periods.

Timber surveys are carried out using non-destructive techniques, which include decay detection drilling with microprobes. Although core samples can be a useful tool for assessing concrete, core sampling is a far less useful tool in assessing timber structures. A timber core sample cannot provide information in the overall condition or strength of a piece. Furthermore, core sampling can actually reduce the expected service life if it breaches the treatment ‘envelope’ of preservative treated timber.

As decay develops, it usually progresses at an increasing rate with the result that the subsequent loss in strength will not be linear and cannot be predicted accurately. However, it is possible to evaluate if the extent of decay has reduced the cross-section of the member to the extent that strength has been affected. If strength has not been affected then implementing a remedial preservative treatment regime can halt further deterioration and extend service life.

A condition survey can be carried out on any timber that is accessible at the time of inspection. This may concentrate

on the high-risk areas if there are access limitations, which might include timbers that are in ground or water contact, and those that have a limited provision for drainage and ventilation. In practice, the highest risk areas are usually bearing ends since these are more likely to have exposed end-grain. Focusing on those areas would be the recommendation for an initial assessment. For the same reasons, connections would be the next priority. Bolt holes, cut-outs and notches all include exposed end-grain, and, similar to bearing ends, these will usually be less free-draining than mid-span sections. Over the service life of a bridge, this would be expected to increase the risk of fungal decay, which has the effect of reducing the expected service life of the timber elements. Although they are generally lower risk areas because they are often well ventilated, mid-span sections should not be ignored, particularly where, for example, bridge deck fixings penetrate the upper surfaces, or where upper surfaces have developed drying fissures that can become water traps.

The presence or absence of water staining at mid-span should not be taken as clear evidence of a decay problem.

Heavily water-stained timbers are frequently in a perfectly serviceable condition if the appearance is ignored. Water staining at or near end-grain can be a little more reliable in terms of assessing the likelihood of decay being present, but even that can be misleading. >>

Far Moor Bridge. Photo: Peter Lambert

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Small specimens (dice size) are removed to confirm species using microscopic techniques so the correct strength class for the species/ grade combination can be assigned using BS EN 1912: 2012 Structural timber.

Strength classes. Assignment of visual grades and species.

Specialised timber surveys

Ealing Bridge. Photo: Peter Ross

For laminated timber structures, simply assessing for fungal decay is insufficient as glueline performance must also be considered. Failure at gluelines, due either to fungal decay of adjacent wood cells, or deterioration of the adhesive bond, can be of greater overall importance than localised loss of viable cross-section.

In the vast majority of cases the strength of the timbers would presumably have been considered by a structural engineer prior to construction. If that information is difficult to obtain, or grade markings have become unreadable on site, or if faced with the task of justifying a structure where the viable crosssection had been reduced by fungal decay, in-situ grading can provide the answer. For that reason, timber surveys are often complemented with visual strength grading and species analysis. The strength characteristics of the structural timbers are determined by undertaking indicative in situ visual strength grading of the members. This in situ grading is carried out using the requirements of the relevant British and European Standards as guidance. These standards are: • BS 4978: 2007+A2 2017 Visual strength grading of softwood – Specification.

• BS 5756: 2007+A2 2017 Visual strength grading of temperate hardwood – Specification.

• BS EN 16737: 2016 Structural timber – Visual strength grading of tropical hardwood. www.trada.co.uk

BM TRADA provides specialised timber surveys for all timber bridges, which offer an enhanced level of detail and expertise to complement regular maintenance examinations of structures carried out by structural engineers. The service provides a level of detail that enables asset managers to co-ordinate decisions and actions across timber-containing assets to deliver enhanced service life, more efficient use of resources and more effective risk management.

The condition-based approach to supporting asset management has two purposes. The first is to detect timber defects such as decay and/or mechanical failure that could endanger safety and reliability of the bridge. The second is to carry out periodic inspections, usually at five-year intervals, which, using evidence-based knowledge on how timber deteriorates, can deliver accurate condition-based monitoring. This provides insight into the asset’s behaviour over time to enable condition forecasting and planning of maintenance or renewal. n

About the author

Nick Clifford Technical Consultant BM TRADA

Further reading Mettem, C., Timber bridges, ISBN 978-0-415577-960, TRADA, 2011 Timber 2020 Industry Yearbook

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Materials Grading

Grade in Britain: enabling a wider range of home-grown species

Dan Ridley-Ellis summarises the different home-grown species currently available, and looks to the future of strength grading for an increasingly wide range of species.

Strength grading is based on data from mechanical testing.

Photo: Allan Shedlock, Edinburgh Napier University

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“For historical and practical reasons, strength grading is done according to one of two approaches: visual strength grading and machine strength grading. The underlying principle is, however, the same for both, and in Europe this is covered by EN 14081-1 and supporting standards.”

T

he UK’s forests provide about one third of the UK sawn wood market and about one third of this homegrown timber is sawn for construction. The majority of this is Sitka spruce (Picea sitchensis), but this is not the only home-grown species available. With calls to diversify the forests, Sitka it is set to become a less ubiquitous, although still very important, tree and timber species in years to come. Recent years have seen a broadening of strength grading methods.

For historical and practical reasons, strength grading is done according to one of two approaches: visual strength grading and machine strength grading. The underlying principle is, however, the same for both, and in Europe this is covered by BS EN 14081-1 and supporting standards.

• Visual strength grading works by assessing features such as the size and position of knots, the ring width, and the slope of grain.

• Machine strength grading methods have expanded from the original mechanical stiffness measurements (bending graders) to incorporate a range of sensing technologies including x-ray scanning, acoustic velocity, slope of grain and digital image recognition.

The strength classes achieved by grading depend not just on the quality of the timber, but also on the grading approach.

Knowing what is possible for home-grown timber is useful, since habitual specification of the most common BS EN 338 strength classes (C24 and C16) may limit what can be done with home-grown timber – for reasons that do not have much to do with the ability of the timber to actually do the job.

Visual strength grading Visual grading is carried out according to grading rules that are usually (but do not have to be) national standards (such as BS 4978 for softwoods and BS 5756 for temperate hardwoods). Assignment to a strength class is specific to a combination of grading standard and timber source. >> www.trada.co.uk

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Grading possibilities for UK home-grown species Spruce British spruce, a mixture of Sitka spruce (Picea sitchensis) and Norway spruce (Picea abies) grown in the UK and Ireland, has the widest range of grading options.

Measuring timber. Photo: Allan Shedlock, Edinburgh Napier University

The assignments for UK-grown timber were established many years ago, but not all of them are listed in the European Standard BS EN 1912. It covers British spruce (a mixture of Sitka and Norway spruce), British pine (Scots and Austrian/Corsican pine), larch (European, Japanese and hybrid) and Douglas fir. The assignments for oak, sweet chestnut and large crosssection Douglas fir are instead in the British Standards Institute (BSI) published document PD 6693. Assignments repeated on other documents, including this one, should be checked against the latest standards since things can, and do, change.

Because the current visual grading rules have certain predetermined thresholds of the visual criteria, the range of available strength classes is very limited. Visual criteria such as knots and slope of grain are typically not as powerful indicators of strength as people tend to assume, so the grading assignment is conservative on the safe side. However, since the visual grading approach is simple to apply it is still very useful, especially for smaller mills and less common species.

Machine strength grading Unlike visual strength grading, machine strength grading is done by machines that have the ability to vary the grading thresholds to potentially grade to any strength class. This allows the commonly specified strength classes C24 and C16 to be targeted for any species, but the grading yield is not necessarily most efficient for those particular grades and the grade’s design properties may be quite a lot lower than the actual properties of the timber. As with visual grading, machine grading settings are specific to species (or species combination) and growth area. Listed below are summaries of current grading possibilities, but these do not necessarily correspond to what is available on the market.

Indeed the large sawmills in the UK are mostly set up to grade a single grade with reject, and do so according to the maximum yield and majority market grade. www.trada.co.uk

• Visual grading to BS 4978 or IS 127 assigns to C14 and C18.

• Machine grading is usually done to the single grade C16, which needs hardly any machine reject since even before grading the timber overall has the required properties. With the right grading machine, yields of about 25% C24 with 75% C16 and minimal machine reject are achievable, and while likely not economical on an industrial scale for primary processing, this may be viable for one-off projects. Machine settings do go up to C27 and TR26 although the yield for those is only small.

• Settings are available for the grading machines by: o Tecmach (Cook Bolinders) o Measuring and Process Control (Computermatic/ Micromatic) o Microtec (Goldeneye 702, Goldeneye 706, Viscan, Viscan plus, Viscan compact, Viscan portable with and without balance) o Brookhuis (MTG920, MTG960, MTGbatch922/926/962/966), Luxscan Weinig (EScan FM/F/FWM/FW) and Dynalyse (Precigrader).

The Cook Bolinders and Computermatic/Micromatic are bending machines (stiffness) and the Goldeneyes are x-ray machines (knots and density). All the other machines are of the acoustic longitudinal resonance type, with or without mass or density measurement (stiffness). The Goldeneye 706 combines x-ray with acoustic measurement.

Larch Larch in the UK is a mixture of European larch (Larix decidua), Japanese larch (Larix kaempferi) and hybrid larch (or Dunkeld larch) (Larix x marschlinsii, syn. eurolepis).

• Visual grading of UK-grown larch to BS 4978 assigns to C16 and C24.

• Larch can achieve C20 or C22 as a single machine grade with minimal machine reject. With the right grading machine, yields of about 30% C27 with 70% C16 and minimal machine reject are achievable. Grades of up to C35 can be achieved in small amounts.

• Settings are approved for the same machines as listed above for spruce.

• Work is currently underway at National University of Ireland (NUI), Galway, to extend larch settings to Ireland and the expectation is that the timber is very similar to that in the UK. >> Timber 2020 Industry Yearbook

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SOMERSET BASED TIMBER SUPPLIERS Unit 16, Walronds Park, Isle Brewers Lane, Taunton, Somerset, TA3 6QP T 01460 281225

www.co2timber.co.uk

As a traditional sawmill we mill straight from felled Cedar, Larch, and Douglas Fir trees. Sourcing our timber from within the UK and milling it into a high-quality product that is suitable for internal and external cladding, flooring, fencing, sheds, field shelters, car ports, Yorkshire Boarding, garden architectural projects, and many more applications.

ALSO AVAILABLE Imported Western Red Cedar | Siberian Larch | Co2Grandis We specialise in producing Timber Cladding in a variety of styles suitable for you to timber clad your projects.

We pride ourselves in quality and customer service we provide. If you are concerned about your carbon footprint, sustainability and the effects you are having on our planet, Co2 Timber are the company to choose.

We can deliver Nationwide via the Pallet Courier Network – International deliveries also available.

All the timber we supply has a low carbon footprint without compromising the quality of the timber. Here at Co2 Timber we aim to keep our carbon footprint and that of the products we produce to a minimum and encourage sustainable practices. We use our off cuts in our commercial wood burning stove to heat our workshop in winter and provide heat for our kiln drying process.

We supply to Trade, DIY’s, Contractors, Builders, Manufacturers, Architects. Being a sawmill we offer a bespoke service for all those non standard size planks, boards and cladding and can cut to size and finish as required.

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Douglas fir Most recently, work by NUI Galway and Edinburgh Napier University has established new grading machine settings for Douglas fir (Pseudotsuga menziesii) grown in UK and Ireland.

anticipating this in its development of special strength classes that make better use of the real properties of homegrown timber. These tailored strength classes now exist for spruce, larch and Douglas fir.

• Visual grading of UK-grown Douglas fir to BS 4978 assigns to C14 and C18, or C24 for large cross-section (PD 6693).

• The machine yield of C18 as a single grade is about 95%.

With the right grading machine, yields of about 65% C24 with about 25% C16 and about 10% machine reject are possible.

Grades of up to C40 can be achieved in small amounts.

• Settings are approved for all the Microtec and Brookhuis machines listed above, and are currently in development by Dynalyse for the Precigrader.

On the other hand, many uses of timber do not have high requirements for the timber properties and for this there is a good case for a much simpler approach to grading. There is no need to reject timber that is perfectly adequate for the job, simply to achieve a familiar strength class that is higher than is actually needed. Visual grading does not need to be so strict as we are used to, and a simple set of visual strength grading rules that can be conservatively applied to a wide range of species may be the way forward for minor species that are not commercial enough to warrant the usual, expensive, testing work to establish grading assignments and settings.

Pine British pine is a mixture of Scots pine (Pinus sylvestris) and Austrian/Corsican pine (the listing is P. nigra) grown in the UK. • British pine can be visually graded by BS 4978 to C14 and C22.

• Currently the only machine grading settings are for the Cook Bolinders and Computermatic/Micromatic bending machines and they cover only C16 and C24.

Other species UK-grown oak visually graded by BS 5756 is assigned to D24, D30 and D40 for large cross-section.

Sweet chestnut is assigned to D24.

There are currently no machine grading settings for UK-grown hardwoods.

Approaches to timber strength grading One problem with the current system of strength grading is that it is well suited to large sawmills grading a handful of the main species, but not well suited to smaller sawmills, especially when they grade a larger range of species, perhaps for specific building projects rather than the open market. It also, currently, cannot be used to grade recycled timber – or indeed even new timber that has already been graded (without reduction in cross-section as per BS EN 14081-1). This is true of both visual grading and machine grading, and is because grading works on populations of timber, rather than individual pieces. This is also why the grading is linked to species and source.

Portable acoustic grading machines are small, simple to use, and relatively inexpensive. This makes them good candidates for smaller producers, especially when grading timber for specific buildings, rather than putting graded timber on the open market. Work at Edinburgh Napier University has been www.trada.co.uk

Wood may be renewable, but it is not unlimited. We should therefore be careful that the way we think about grading does not: • unnecessary limit what timber can be used for • cause rejection of timber that would still be perfectly adequate • artificially limit the range of species we use.

While commodity strength classes are good for easy trade, it also makes sense to make better use of the real properties of the timber where possible – especially where the convenience of general trade is not needed. On the other hand there is also a case for a simple, conservative approach to allow timber to be used that would not otherwise be cost effective to grade. Strength grading is not about the grade itself – strength classes are simply shortcut ways of describing design properties. n

About the author

Dan Ridley-Ellis Head of the Centre for Wood Science and Technology, Edinburgh Napier University Convenor of CEN TC124 WG2 TG1

Further reading • WIS 4-37 Timber strength grading and strength classes, BM TRADA, 2017 • WIS 2/3-67 Specifying British-grown timbers, BM TRADA, 2017 Timber 2020 Industry Yearbook

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Adhesive-free buildings: an update on recent research Conan O’Ceallaigh and Dan Bradley report on the initial commercialisation of highly densified timber technology.

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owards Adhesive Free Timber Buildings (AFTB) is a £4m+ research project, led by Dr Zhongwei Guan at the University of Liverpool. Starting in 2016, six European partners have been pushing the boundaries of what it is possible to achieve using sustainably sourced softwoods.

This article presents two of the project’s key achievements.

First, we discuss highly compressed timber as a sustainable material offering the performance and, to an extent, the aesthetic qualities of rare tropical hardwoods. Second, we explain a realistic application of the material, its use as a likefor-like replacement for steel in flitch plates and other timbertimber connection designs. This work on connections has been led by Professor Annette Harte at NUI Galway.

These connections expand what is possible in all-timber construction, allowing glulam beams to be connected across far greater spans than would be achievable using traditional carpentry, but without the inclusion of steel elements. The research team are currently exploring the use of these techniques in the upcoming construction of a 30m x 13.5m meditation centre, where the client has specified an all-timber, metal-free structure.

Background Since the project was introduced in Timber 2019 Industry Yearbook, pp127–129, progress has been made with respect to the varied aims of the project. Densified timber combines the material properties of tropical hardwoods, using only sustainably grown softwoods or hardwoods (such as spruce or beech). It has, however, struggled to move out of niche applications such as weaving shuttles for the textile industry, or as a laminated product, in applications where mechanical performance must be combined with outstanding thermal or electrical resistance.

The material is being used in many more innovative applications, including as a replacement for internationally protected timber www.trada.co.uk

species in the manufacture of fine musical instruments. The AFTB project has investigated its application to mass timber construction. In terms of engineered wood products, we have focused on dowelled beams and panels, Brettstapel floors and walls, and densified timber connection systems.

Table 1 shows indicative values for the material performance increases that have been observed. These tests were conducted with widely available species, including Sitka spruce, Scots pine, western hemlock and beech. Of key interest to manufacturers of existing dowelled timber products may be the seven-fold increase in the force required to extract a dowel imbedded in softwood laminates, compared to a traditional dried hardwood dowel.

It should also be noted that, although the test was concluded after three cycles, the force required had not stabilised and was continuing to increase. By using the properties of the compressed wood, it is also simple to design bolt-like fittings where post-assembly expansion forms a solid, continuous dowel that flares at both ends, further locking laminates in place. >> Longitudinal

Radial*

Tangential

Compression strength

+120%

+1800%

+470%

Young’s modulus

+160%

+180%

+500%

Tension strength

+140%

-

-

Bending stiffness

+140%

-

-

Bending strength

+140%

-

-

Embedment strength

+310%

Shear strength Dowel withdrawal strength

+470% -

+710% (radial × tangential plane)

+150% (10mm compressed softwood dowels in uncompressed softwood timber, comparison with uncompressed hardwood dowel after three accelerated aging humidity cycles)

Density increase

+200% (eg 500 to 1500 kg/m3)

* Axis through which the timber is compressed Table 1: Effect of compression on selected material properties. Values are indicative and include data from multiple species

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voids, compressed timber has superior fire resistance compared to standard softwoods. For example, densified spruce exposed to a standard fire (850°C) loses about 20% of its mass due to charring after 15 minutes; an equivalent sample of uncompressed spruce will lose up to 65%.

Compared to metal fixings for timber, dowelled connections offer a superior fire performance. Before charring, densified timber loses almost no strength as the temperature increases. Structural steel, however, loses 50% of its strength at room temperature when it reaches 500°C. Steel fixings also rapidly conduct heat into internal areas of bulk timber, charring them from the inside. This effect is not observed when using hardwood or compressed wood fixings.

Representative load displacement curves showing performance in destructive four-point bending tests

The permanent tight fit observed when using compressed wood fittings is a consequence of the material’s natural tendency to spring back to its pre-compression geometry.

The rate of this effect is controlled by the in-service moisture content and temperature. Should dimensional stability be required, however, this can be achieved through treatments to prevent moisture ingress and possibly by thermal treatment of the compressed product.

Fire In the UK, fire-risk perception is a significant impediment to the adoption of mass timber, especially in structures over 18m where it is now restricted. Due to the lack of internal

Potential for industrial adoption in mass timber As a like-for-like competitor for glulam and CLT, using softwoods compressed wood technology is not ready for market. The beam or panel stiffness is determined by the properties of the softwood laminates, with the dowels embedding in the softer material under load. For beams using hardwood dowels, however, compressed wood fixings were able to yield a modest improvement of +8% in stiffness and +12% in load-at-failure.

In the opinion of the authors, the solution lies not with the dowels but with profiling the surfaces of the laminates, such that they interlock and therefore resist slippage. Using this technique, the stiffness of glulam beams may well be approached, at the expense of extra machining time and some material wastage. Testing of this was, however, outside the scope of the project. >>

Glulam beams connected with steel and compressed wood connections. Photo: AFTB

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Uncompressed timber

Compressed timber 70mm 27mm Compression of western hemlock, before (left) and after (right). Photo: AFTB

dowels can, for certain designs, be used interchangeably with their metal equivalents.

When destructively tested, the failure mode of the connection is failure of the glulam beam around the joint, not the connecting elements.

Unusually for a timber-only system, a useful tensile ductile capacity can also be developed by taking advantage of embedment of the densified timber in the softer laminates. Each application, will, of course, have its own design requirements.

Current industrial uptake of connections

Summary

Several European companies have prototyped products based on the technology developed by this project. Buckland Timber Ltd, a full-service glulam manufacturer based in Devon, is currently working with project partners to incorporate densified timber connections in a commission due for construction in 2020. The customer requires that no metal is used in the structure of the building. This rules out use of standard steel fixings and screws to link the planned glulam elements.

With its combination of physical properties, shape memory and sustainability credentials, the AFTB project hopes to move the use of highly densified timber beyond niche applications and into mass timber for the construction industry. For true mass adoption, however, further research will be required into the production process, including at the forestry and sawmill level. n

The extensive testing by project partners, primarily NUI Galway, has demonstrated that compressed wood plates and

About the authors

Dr Dan Bradley Project Manager Adhesive Free Timber Buildings School of Engineering University of Liverpool

Dr Conan O’Ceallaigh Adjunct Lecturer and Post-Doctoral Researcher School of Engineering National University of Ireland Galway

Acknowledgements The authors gratefully acknowledge the funding provided by the European Regional Development Fund via Interreg NWE grant 348 ‘Towards Adhesive Free Timber Buildings’, AFTB.

Further information To find out more, visit www.nweurope.eu/AFTB

Full frame, adhesive free beams, columns and connections under testing at NUIG. Photo: Wild Island Pictures / NUIG

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Wood health Ed Suttie discusses how wood is good for your health and how we might specify for the delivery of healthy buildings.

T

hree years ago, this yearbook1 featured an article titled ‘Is wood good for your health?’, which considered how the choice of materials we surround ourselves with could affect our well-being. It was an exciting time as building occupant well-being was rising up the agenda and the first building in Europe to achieve WELL Gold Certification through the WELL Building Standard™ was the Cundall office at One Carter Lane, London, in November 2016.

At the time, the logic for using wood as a construction material was simple and built upon the increasingly recognised health and well-being benefits of the forest resource as an asset. It considered that through ‘biophilia’ – our connection to nature – we respond, heal, learn and relax better in environments that mimic nature. Wood as a natural material is a strong proxy for nature, bringing us warmth, diversity of pattern, thermal comfort, and acoustic and aesthetic qualities.

This article discusses what has happened since then and glances to the future, focusing on three topics: • the evidence for health qualities of wood • building momentum • the opportunity for increasing specification of wood using health qualities.

Evidence for health qualities of wood It is incredible to think that a material as ancient and widely used in our built environment as wood could have qualities that we are only just beginning to quantify. At last year’s TTJ Wood and Wellness2 conference in London, TRADA’s briefing document ‘The role of wood in healthy buildings’3 was launched, documenting the scientific evidence for the positive impacts of wood on people in buildings.

Empirical scientific evidence is key to our understanding, but we also have to judge that evidence: it is not all the same and often cannot be directly compared. For example, we have to consider the experimental set up, the inherent bias, the data sample size, the demographic of the people participating in the study, culture preferences etc. Scientific evidence is key, but we must also value the distillation of years of anecdotal evidence and instinct. This shapes designers, craftsmen and others drawn to work with wood, creating a deep experiential quality to their buildings, products and interiors.

The global evidence suggests that, from studies of the perceptions of wooden surfaces compared with other materials, a ‘wood preference’ exists. People who are asked to compare materials by looking, touching and smelling material samples prefer wood to steel, plastic, metal, stone, ceramic, brick and aluminium. This is connected to the naturalness of the wood material and extends further as solid wood is preferred to wood-based materials and, perhaps no surprise, that real wood is preferred to false wood. When asked about rooms with different amounts of wood present, mock-ups or visualisations of wood present in a room (from no wood to everything wood) there seems to be a limit, with some wood present (for example the floor and furniture) being consistently the preferred option.

People have positive attitudes towards wood in interiors. Wood is commonly perceived as natural, warm and healthy, and is often preferred over other materials.

Healthcare and education Sunbeams Music Centre, Cumbria. Photo: Simon Kennedy

www.trada.co.uk

The global evidence of the physiological and psychological benefits of wood is somewhat sparser, but some encouraging work published in Canada by Augustin and Fell4 found that, >> Timber 2020 Industry Yearbook

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Feilden Fowles Studio, Waterloo. Photo: David Grandorge

in healthcare environments, natural materials and views are associated with better patient outcomes with respect to recovery times, lower pain perception and positive dispositions. For education, Kelz et al5 studied the use of wood in Austrian classrooms and found that, over the course of a school year, pupils’ heart rates significantly decreased in a solid wood classroom but increased in the control nonwood classroom.

many cases the function of the building – mental health centre, children’s hospital, care and assisted living complex, healthcare centre – might have been driving its consideration.

There is good evidence that wood has a positive impact on human psychology and physiology. There are only relatively few studies, but they are long term, thorough and create a movement towards using wood for health benefits. These promising results should be replicated in the UK and/or Europe, with more subjects and different age groups to build upon these exciting findings. This would be hugely beneficial in accelerating uptake of specifying wood for health.

Building momentum

Building interiors are experiential – instinct and first experiences are important. Is wood being specified for health and wellness qualities now? Globally there are some examples of wood specified for its health and well-being qualities. It is repeatedly specified as a versatile, natural, low-carbon, beautiful material, but health and well-being is a quality specifically embedded in some projects in Australia (Wood Housing Health, Humanity),6 Canada (Wood in Healthcare)7 and the US (Thinkwood case studies).8 In www.trada.co.uk

Many people prefer wood as a material and there is increasing confidence that the positive impacts wood can have on occupants of buildings can be measured, but these health benefits are not currently specified.

We must continue to build this momentum, expand and share experiences and new studies. The TRADA case studies9 showcase fantastic buildings celebrating the diversity of wood and its ability to deliver and be part of our built environment. It would be valuable to revisit and extend this building evaluation to the health and well-being of the building occupants, and understanding and then communicating those tangible benefits to a wider audience.

The opportunity for increasing specification of wood using health qualities Certification schemes for whole buildings are a good route to examine, although even with health-dedicated schemes reference to wood will not be directly found in many places.

We have seen that a core tenet of biophilic design is contact >> Timber 2020 Industry Yearbook

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Materials Timber and well-being

with nature and analogues for nature – natural things.

Wood is a proxy for nature, each element being unique and natural. The TRADA Wood Information Sheet WIS 0-14 Specifying timber for healthy buildings10 reviews, in Tables 6 and 7, how the qualities of wood impact within certification schemes, such as indoor air quality, visual comfort, biophilia, thermal comfort, acoustic comfort etc. We are now considering the next step to map the credits available to wood in certification and assessment schemes, in place of an alternative material, for specific applications such as flooring, furniture, doors and interior cladding panels.

WIS 0-14 Specifying timber for healthy buildings explores the possibilities for the specification of wood for healthy buildings, to encourage delivery of interiors that positively impact on our well-being. It recognises the importance of the type of project, with particular opportunity around refurbishment and fit-out (RFO) projects. This is vital as much of our existing building stock will remain with us for many decades and be refurbished and repurposed.

It is second nature now for us to minimise emissions in the selection process for preservatives, fire retardants and glues in products, but we also need to push this to operational issues such as the aftercare and cleaning products that we recommend.

Making a compelling case To further enable specifying timber for healthy buildings it is essential to understand more about the qualities that wood delivers, gather more evidence as case studies and have a consistent compelling case for us to communicate. We need some or all of the following to accelerate this uptake:

The health qualities in future will be more readily articulated so that wood solutions can be proposed by designers to meet clients’ needs such as low carbon, strength, durability but also the significant values of health and well-being. n

About the author

Ed Suttie Research Director BRE

Further reading • WIS 0-14 Specifying timber for healthy buildings, BM TRADA, 2019 • The role of wood in healthy buildings, Briefing Document, BM TRADA, 2019

References 1. www.trada.co.uk/publications/magazine-articles/is-woodgood-for-your-health/ 2. www.ttjonline.com/event/wood-and-wellness/ 3. www.trada.co.uk/publications/other-technical-guidance/therole-of-wood-in-healthy-buildings/ 4. www.woodworks.org/wp-content/uploads/WoodRestorative-Material-Healthcare-Environments.pdf 5. Kelz, C., Grote, V. and Moser, M., ‘Interior wood use in classrooms reduces pupils’ stress levels’, 2011

• a collaborative sector-backed research strategy to articulate and ‘attach’ wellness qualities to wood products • occupant monitoring of wood-rich and control buildings providing a catalogue of UK exemplar wood-rich buildings with health and wellness credentials • communication of our findings as evidence turned into targeted guidance to enable specification of wood for its wellness qualities.

6. https://makeitwood.org/documents/doc-1253-wood-housing--health--humanity-report-2015-03-00-final.pdf

Wood products have an exciting role to play in contributing to positive indoor environments where the benefits to our health and well-being manifest as improved experiential qualities and building outcomes. These outcomes include:

9. www.trada.co.uk/case-studies/

7. Wood in Healthcare: a natural choice for enhancing human wellbeing, naturally: wood, British Colombia Wood, 2012 at www.structurlam.com/wp-content/uploads/2016/12/Woodin-Healthcare-Case-Study.pdf 8. www.thinkwood.com/

10. WIS 0-14 Specifying timber for healthy buildings, BM TRADA, 2019

• recovery rates in hospitals • education success in school • comfort in our homes • better business outcomes in our offices. www.trada.co.uk

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Flooring Reused timber

Reclaimed wood flooring

Nick Clifford examines whether the reuse of timber for flooring is a good form of recycling.

T

he environmental benefits of reusing and recycling construction materials may seem obvious, as well as potential financial advantages. Timber often lends itself to re-use as it can be re-sized or re-surfaced with relative ease. Wooden beams have long been reused in buildings; used railway sleepers are available for retaining walls or garden features; and reclaimed oak has been used for external timber cladding, with great results.

Similarly, TRADA has seen an increase in the re-use of wood block flooring in recent years, but with varying degrees of success. While lifting, refurbishing and re-laying wood block flooring may seem an attractive option, consideration must be given not just to whether the wood blocks are in a suitable condition for re-use prior to refurbishment, but also to the expected service life of the floor afterwards. An understanding of the process helps bring the potential pitfalls into focus.

What is wood block flooring?

Wood block flooring comes in a variety of edge profiles and sizes ranging from square-edged blocks to slats, depending on the age of the floor covering. Older wood block floor coverings were predominantly installed as square-edged blocks laid adjacent to each other into a bed of bitumen adhesive and caulked with an extensible mastic. These types of floor covering were predominantly laid ‘end-on’ with their end grains forming the aesthetic face. These blocks were exceptionally hard wearing and were commonly used to good effect where sound dampening in confined spaces was a consideration.

Large rafting gap with visible sub-floor

What are the considerations of reuse?

Where square-edged, end-grain blocks are laid as a means of preserving the character of heritage projects, or even on new installations, consideration should be given to the movement characteristics of the flooring elements, which, may develop irregular or rhomboid shapes depending on where within the log the wood block has been cut. To mitigate this risk careful selection of the blocks may be required before subjecting them to a strict and thorough acclimatisation protocol to the anticipated atmospheric conditions they are likely to experience in service.

Floor coverings that are installed with edge-bonded wood blocks may be particularly susceptible to the phenomenon of ‘rafting’ in the event of their not being adequately acclimatised.

In the event of in-service shrinkage occurring, the weakest joints are more likely to break causing the more strongly bonded blocks to move together in unison (literally as a raft), which can result in the development of oversize gaps in the floor. The risks of rafting can be much reduced by proper acclimatisation of blocks before they are laid.

The role of a tongued and grooved profile

Broken block edges can be avoided through careful block selection

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Modern wood blocks, as defined in BS EN 13228,1 are typically machined to a thickness of 13mm, up to 400mm long and 80mm wide with interlocking features, often with a tonged and grooved (T&G) profile or similar.

Flooring Reused timber

on the undersides of wood blocks after lifting, and these must be removed prior to re-laying. Failure to do so makes it much harder to achieve a flat floor surface, and a greater degree of sanding may be needed to remove any unevenness. Whatever the case, sanding will usually be required.

Repeated sanding can lead to thin wear layers

When it comes to re-use of T&G profiled blocks, tongues frequently break off when well-bonded blocks are prised up, and contractors have also been known to intentionally remove tongues once blocks have been lifted. A T&G joint is primarily a movement joint designed to accommodate seasonal movement.

In wood block flooring the engagement of the tongue with the groove of the adjacent block also provides a visual benefit as this obscures the sub-floor surface when shrinkage occurs during warmer, drier periods, otherwise the sub-floor surface would be visible through shrinkage gaps between square-edged blocks.

Re-using blocks with removed tongues presents a difficulty in that tongues provide a degree of support to the upper lip of the grooved edges of adjacent boards. Removal of that support significantly increases the risk of breakages in service, as block edges break off under much-reduced loads, for example from an unfortunately positioned chair-leg or stiletto-type heel.

The risk of block edges breaking off where tongues are absent may be especially high for floors that have been subjected to sanding as part of prior re-coating works. Each sanding event removes material from the upper surface of the blocks, including the upper lip above the groove. The extent to which that material has been removed, or more importantly the thickness of the remaining material, plays a crucial role in block-edge breakages. The thickness of the upper lip of grooved edges in wood block flooring is commonly around 6mm. That is a relatively thin section of wood to resist the load from a chair leg in use if the tongue of the adjacent block is missing, so the lip does not have additional support.

Effects of sanding Re-using, refurbishing or repairing wood block flooring will almost always include sanding to ‘freshen-up’ the wood surface, to remove unevenness, and/or as part of the renewal of worn-out surface coatings. Adhesive residues often remain www.trada.co.uk

Each sanding event removes material from the upper surface, thereby reducing the potential for future sanding. Although moderately sanding a flat floor may remove only a millimetre or so of wood from the surface, a floor can only be subjected to a finite number of sanding events over the life of the wood blocks, before too much material has been removed. Square-edged and endgrain blocks are usually sufficiently thick to allow sanding on many occasions without issue. In T&G blocks the 6mm thick upper lip of the grooved edges soon becomes thin after perhaps only two or three sanding events, making breakages at block edges more likely without support from the tongue of the adjacent block.

Conclusion When considering whether or not a wood block flooring is suitable for re-use, it is important to consider whether the blocks will have sufficient material to avoid breakages after relaying and sanding. Even if they do, can they be sanded again at a later date, as part of routine maintenance for wood block floors? If not, with the best of intentions, you may be spending time and money re-using a wood block floor that is prone to failures, and/or will have a limited service life going forward. n

About the author

Nick Clifford Senior Technical Consultant BM TRADA

Further reading • Kaczmar, P., Wood flooring: a professional’s guide to installation, TRADA Technology Ltd, 2009 • WIS 1-36 Timber joist and deck floors: avoiding movement and noises, BM TRADA, 2018 • WIS 1-41 Strutting in timber floors, BM TRADA, 2018 • WIS 1-46 Decorative timber flooring, BM TRADA, 2018

References 1. BS EN 13228:2011 Wood flooring. Solid wood overlay flooring elements including blocks with an interlocking system, BSI, 2011 Timber 2020 Industry Yearbook

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COWAN AND DAVIDSON - Joiners & Builders Ltd -

10 Green Street, Ayr, Ayr KA8 8AD - TELEPHONE 01292 441 500 - EMAIL cowananddavidson@btconnect.com

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Joinery Roofs

Pitched timber roofs: a geometry lesson

Mark Milner focuses on the maths involved in setting out a traditional pitched timber roof, determining lengths and bevels, and the various cuts required.

R

ise, run, pitch… upon hearing such terminology, anyone would be forgiven for thinking that this is an article on stairs. In fact, this terminology is not monopolised by stairs; it is shared by another subject employing many of the same elements – among them, lengths, bevels and geometry. Of course, the function of a roof is entirely different to that of a staircase; the latter providing safe access from one floor level to the next, while the former provides a weather-proof covering over a building.

Three methods and key components Determining the lengths and bevels of roofing members is one of the fundamental skills required by roofing carpenters.

There are several methods, the main three being: • Roofing Ready Reckoner • geometry • steel roofing square.

Before looking at the first two in more depth, it will be useful to outline the main components of a hipped roof and basic setting out terms, as illustrated in Figures 1 and 2 respectively and described below.

Ridge board Common rafter

Jack rafters: fixed in diminishing pairs between the hip rafter and the wall plate.

Ridge board: a horizontal board at the apex of the roof structure, against which the tops of the rafters are fixed.

Wall plates: Horizontal members bedded on mortar at the tops of the walls that provide a fixing point for, and that carry and share the load imposed by, the rafters.

Backing line

Rise

Pitch Run Span

Figure 2: Basic setting out terms. Illustration: Mark Milner

Backing line: used when marking out a pattern rafter and positioned at two-thirds depth from the rafter’s upper surface.

Pitch: the slope of a roof measured in degrees.

Rise: the vertical distance from the top of the wall plates to the point where the rafters’ backing lines intersect at the ridge board.

Run: the horizontal distance from the outside of the wall plate to the centre of the roof; equivalent to half the span.

Span: the horizontal distance from the outside of one wall plate to the outside of the opposite wall plate, measured in the direction of the ceiling joists; equivalent to twice the run.

Roofing Ready Reckoner Hip rafter Crown rafter

Wall plate Jack rafter

Figure 1: Main components of a hipped roof. Illustration: Mark Milner

Common rafters: inclined members fixed at their upper ends to the ridge board and, at their lower ends, to the wall plate.

Crown rafter: the central rafter of a hipped end.

Hip rafters: members forming an external corner where two of a roof’s sloping surfaces meet and against which the upper ends of the jack rafters are fixed. www.trada.co.uk

The Roofing Ready Reckoner (RRR) is a book of tables (several versions are available, many as smartphone apps).

From the tables, the lengths and bevels of the various inclined roof members can be looked up and, when used with a steel roofing square, marked out.

Reading the tables, which are arranged in ascending order according to a roof’s pitch, is straightforward once the basic principles of roofing are understood. Referring to Figure 3 and using, as an example, a roof with a pitch of 35° and a run of 4m, the roof’s pitch tells us which page to turn to. The left-hand column, headed ‘RUN OF R’ (R: rafter), list runs from 1 to 10 >> Timber 2020 Industry Yearbook

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(m), and the adjacent column, headed ‘LENGTH OF RAFTER’, provides the corresponding basic rafter length (BRL),1 which, in the case of this example, is 4.8826 (m).

35 DEGREES

RUN OF R

=

210 mm RISE IN 300 mm RUN

LENGTH LENGTH OF OF RAFTER H&V

ROOF MEMBER AND BEVEL

1

1.2206

1.5779

R

2

2.4413

3.1559

3

3.6619

4.7339

4

4.8826

6.3118

5

6.1032

7.8898

6

7.3239

9.4678

7

8.5445

8

FIGURES USED ON BLADE TONGUE

MARK CUT ON

PLUMB

300

210.0

R

SEAT

300

210.0

BLADE

H&V

PLUMB

424

210.0

TONGUE

H&V

SEAT

424

210.0

BLADE

H&V

EDGE

300

269.0

BLADE

HIP

BACK’G

300

134.0

TONGUE

11.046

PURLIN PLUMB

300

172.0

TONGUE

9.7652

12.624

PURLIN

EDGE

300

245.0

TONGUE

9

10.986

14.202

JACKS

EDGE

300

245.0

BLADE

10

12.206

15.779

MOVE DECIMAL POINT 1,2, OR 3 PLACES TO RIGHT AND UNITS BECOME TENS, HUNDREDS OR THOUSANDS. 0.4 AND UNDER IGNORE. 0.5 AND OVER ADD 1 TO UNITS.

Staying with a pitch of 35°, we’re going to set out, by means of geometry and using a scale of 1:25 on a sheet of A3 paper, a hipped roof with a span of 3m (Figure 5).

TONGUE

DIFFERENCE IN JACKS 300 350 400 450 500 550 600

mm mm mm mm mm mm mm

CENTRES CENTRES CENTRES CENTRES CENTRES CENTRES CENTRES

366 427 488 549 610 671 732

mm mm mm mm mm mm mm

Figure 3: The ‘35 Degree’ page of Roofing Ready Reckoner Source: Stobart Davies Ltd (www.stobartdavies.com)

Figure 4 illustrates this information pictorially with the BRL rounded to 4883mm. If the example roof had a hipped end, we would also refer to the third column, headed ‘LENGTH OF H & V’ (H: hip rafter, V: valley rafter), to find the hip rafter length of 6.3118 (m).

Figure 5: Hipped roof with a pitch of 35° and a span of 3m. Illustration: Mark Milner

When complete, we are going to cut out and fold the roof to form a three-dimensional model and compare its scale measurements with actual measurements given in the RRR. In doing so, the RRR tables – hitherto page after page of meaningless numbers in the mind of an inexperienced but budding roofer – are brought to life.

Stage 1 With the A3 paper in portrait orientation and working from a vertical line drawn down the centre of the sheet, two further vertical lines are drawn 1.5m (at 1:25 scale using a scale rule) each side of the centre line (Figure 6).

gth len er aft 3 mm r sic 88 Ba 4

Figure 6: A span of 3m equals a run of 1.5m.

Photo: Mark Milner

Span 3 m Run 1.5 m

80

Scale 1:25

The RRR is undoubtedly a useful tool for roofing carpenters.

The difficulty, from a teaching point of view, is presenting the tables in a way that allows students and apprentices to see the information in their mind’s eye; a difficulty made greater when the run is not listed in the tables. www.trada.co.uk

60 50

Geometry

60

Figure 4: The basic rafter length of the example roof. Illustration: Mark Milner

85

Run 4000 mm

85

Pitch 35°

Figure 7: Our setting out so far. Illustration: Mark Milner

Stage 2 Horizontal lines, suitably spaced to fit both an elevation and a plan of the roof on the A3 sheet, are drawn next.

Suggested measurements are given in Figure 7. >>

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Stage 3 Working from the uppermost horizontal line, we’re now going to draw an elevation of the roof in the form of an isosceles triangle with an angle (pitch) of 35° (Figure 8).

Scale 1:25

b 35°

a

Figure 8: The roof’s pitch is 35°. Photo: Mark Milner Figure 11: The BRL is transferred to the plan drawing. Illustration: Mark Milner

Stage 4 Beneath the elevation, the roof’s plan is drawn (Figure 9).

35°

Stage 5 Our roof, currently twodimensional, must now be developed. A compass is set to a-b (the BRL) on the elevation drawing and then rotated to transfer the rafter length to the plan drawing below (Figures 10 and 11). Repeat on the opposite side:

Scale 1:25

Figure 12: Developing the hipped end. Photo: Mark Milner Figure 9: Roof elevation and plan.

Illustration: Mark Milner

Figure 10: Developing the roof. Photo: Mark Milner

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Stage 7 The developed roof can now be cut out and folded to form a threedimensional model (Figures 14 and 15):

Scale 1:25

35°

Stage 6 To develop the hipped ends and complete the drawing, the compass is now set to c-d and rotated until the arc crosses the centre line. Repeat on the other three corners (Figures 12 and 13):

c

d

Figure 13: Geometry. Illustration: Mark Milner

Joinery Roofs

Scale measurements

So how do we find the basic rafter and hip rafter lengths if the run isn’t listed in the tables?

At 1:25 scale, the model roof is undeniably small, making accurately measuring its ‘real life’ dimensions virtually impossible. Nevertheless, measure it we will, and provided we’ve worked carefully, an agreement between the model and the RRR will be demonstrated with each affording credibility to the other.

Accurate dimensions are shown in Figure 16.

This may be achieved by dividing the run in millimetres by 1,000 (so as to express the run in terms of a metre) and to then multiply this figure by the rafter lengths given in the tables (circled red in Figure 17 ): Figure 14: The developed roof is cut out...

Alternatively, a run of 1.5m could be doubled and the given rafter lengths halved (circled blue in Figure 17):

Figure 15: ...and folded to form a threedimensional model

Run of rafter measurements listed in the RRR are whole numbers from 1 to 10; the run of this model is 1.5m, which falls between the ‘1’ and ‘2’, as arrowed Figure 16: The model’s ‘real-life’ dimensions. in Figure 17. So the Photos/illustration: Mark Milner required run’s absence from the table, as mentioned earlier, makes the understanding process all the more difficult in the mind of a learner.

35 DEGREES

RUN OF R

=

ROOF MEMBER AND BEVEL

1

1.2206

1.5779

R

2

2.4413

3.1559

3

3.6619

4.7339

4

4.8826

6.3118

5

6.1032

7.8898

6

7.3239

9.4678

7

8.5445

8 9 10

FIGURES USED ON BLADE TONGUE 300

210.0

R

SEAT

300

210.0

BLADE

H&V

PLUMB

424

210.0

TONGUE

H&V

SEAT

424

210.0

BLADE

H&V

EDGE

300

269.0

BLADE

HIP

BACK’G

300

134.0

TONGUE

11.046

PURLIN PLUMB

300

172.0

TONGUE

9.7652

12.624

PURLIN

EDGE

300

245.0

TONGUE

10.986

14.202

JACKS

EDGE

300

245.0

BLADE

12.206

15.779

CENTRES CENTRES CENTRES CENTRES CENTRES CENTRES CENTRES

Figure 17: Run of rafter doesn’t have to be a whole number.

Source: Stobart Davies Ltd (www.stobartdavies.com)

www.trada.co.uk

366 427 488 549 610 671 732

Brilliantly simple and entirely reliable, the RRR can be an invaluable tool in roof building. Selling it to those entering the trade of carpentry and joinery can be difficult. Geometry, when applied to roofs, is a practical activity that can be carried out at a desk or workbench.

The scales involved, though, make entire accuracy – unlike the RRR – almost unachievable. Put the two together and they make a formidable partnership. n

Mark Milner Lecturer in carpentry and joinery, North Kent College Author of Simply Stairs: The Definitive Handbook for Stair Builders, ISBN 978-1-84995-149-4, Whittles Publishing, 2015, available from https://bookshop.trada.co.uk

TONGUE

DIFFERENCE IN JACKS mm mm mm mm mm mm mm

Lesson learnt

MARK CUT ON

PLUMB

300 350 400 450 500 550 600

Run of rafter: 1.5m x 2 = 3m.

Length of rafter: 3.6619m ÷ 2 = 1.83095m or 1831mm.

Length of hip rafter: 4.7339 ÷ 2 = 2.36695m or 2367mm.

About the author

210 mm RISE IN 300 mm RUN

LENGTH LENGTH OF OF RAFTER H&V

MOVE DECIMAL POINT 1,2, OR 3 PLACES TO RIGHT AND UNITS BECOME TENS, HUNDREDS OR THOUSANDS. 0.4 AND UNDER IGNORE. 0.5 AND OVER ADD 1 TO UNITS.

Run of rafter: 1500mm ÷ 1000 = 1.5 Length of rafter: 1.5 x 1.2206 = 1.8309m or 1831mm.

Length of hip rafter: 1.5 x 1.5779 = 2.36685m or 2367mm.

mm mm mm mm mm mm mm

Further information Gray. W. E., Carpenter’s Metric Roofing Ready Reckoner, ISBN 978-0854420049, Stobart Davies Ltd, 1972

Further reading Eurocode 5 span tables, 4th edition, ISBN 978-1-909594-14-2, TRADA Technology, 2014

References 1. Basic rafter length (BRL) is the length of a rafter measured from the upper outside corner of the wall plate to the centre of the ridge board. The actual rafter length is BRL minus half ridge thickness plus eaves projection.

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New in the TRADA bookshop

• Expanded second edition with a new chapter of case studies • Examines the key considerations when designing buildings for off-site or industrialised construction

• Explains how timber can be used to meet the imperative for high-quality, sustainable and efficient buildings

Order online at

http://bookshop.trada.co.uk

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Joinery Windows

A natural evolution: the wooden window

Recent years have seen significant developments in the design of wood windows and the manufacturing processes and materials used to produce them. Kevin Underwood explores the solutions that modern wood windows provide and identifies key factors to take into consideration when specifying wood as a window material.

Wooden sliding sash windows.

Photo: WWA

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“Not only do wood windows have a long service life, often longer than other common window materials, but they also provide lower whole-life costs.�

W

indows are a fundamental component of the fabric of any building. Not only do they allow us to view the environment around the building but, in so doing, they allow sunlight to enter the building, providing warmth and light. Windows insulate the building’s fabric, both thermally and acoustically, and while they provide controlled ventilation, which is essential for maintaining indoor air quality, they resist the uncontrolled ingress of air and water.

Windows also form part of the physical security of buildings and contribute to the safety of people who visit, live or work in the building, providing a potential escape route in the event of a fire and protection from falling and impact injury if the window contains low-level glazing.

This is a big role to fulfil, and modern wood windows successfully provide solutions across a broad spectrum of project types.

Performance through engineering Over the past two decades there have been significant technological advances in the wood windows industry, from design to the manufacturing processes and materials used in their production. The development of engineered and modified timber components, and improvements in the formulation of coatings and the factory application of these, mean that wood windows provide levels of strength, durability and stability that meet the tough challenges presented by any commercial or domestic project brief.

Independent research by Heriot Watt University1 demonstrates that not only do wood windows have a long service life, often longer than other common window materials, but they also provide lower whole-life costs. In its study Whole Life Analysis of Timber, Modified Timber and Aluminium-clad Timber Windows, Heriot Watt University looked at the service life planning (SLP) and whole life cost (WLC) of wood windows compared with other types of materials. The specification used for wood windows was the standard set by the Wood Window Alliance (WWA) and it was found that these modern, factoryfinished and glazed wood windows had an expected service life of between 56 to 65 years in average UK conditions. >> www.trada.co.uk

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Joinery Windows

is required to be applied to the window within the first decade of it being installed if maintenance is carried out before any visible signs of coating degradation are evident.

In the same study, Heriot Watt University took levels of planned maintenance programmes into consideration in the calculation of WLC of window frame materials. With a service life of up to 65 years in average UK climate conditions, wood windows made to the WWA specification were also found to have the lowest WLC.

How manufacturing standards influence service life The measures listed below are part of the Wood Window Alliance (WWA) specification for wood window frames and all work together to contribute to the expected service life of 56 to 65 years.

Old Store, Deal. Photo: WWA

This, for example, is almost double that of PVC-U window frames, which were found to have an expected service life of 35 years2 in the same average climatic regimes.

Manufacturing criteria have played a strong role in extending the service life of wood window frames, encompassing the following key elements: • choice of sustainable, defect free, engineered or modified timber • window design elements, such as rounded edges, watershedding angles on horizontal surfaces, such as sills and beads, and joint and end-grain sealing • flexible, microporous protective coatings applied under factory-controlled conditions • factory controlled drained and vented glazing systems suited to double or triple glazing units.

The above factors have also contributed to modern wood window frames requiring less regular maintenance. The coating systems used today – particularly when applied by a factorycontrolled process, enabling consistency in coverage, greater coating thicknesses and with managed drying conditions – are superior to finishes manually applied on site with a brush. WWA members typically provide a 10-year guarantee for opaque coatings (paints) and a seven-year guarantee for medium- or high-build translucent coatings (stains) for average UK climate conditions, meaning that a simple refresher coat is often all that www.trada.co.uk

• Improvements to the timber in the windows by using: o specially selected slow-growth timber grown in cold climates o a higher proportion of heartwood o engineered components incorporating defect-free, laminated and finger-jointed timber, increasing stability and reducing knots and resin exudation.

• Improved component design, using a slight slope – especially to the horizontal sections of the windows – to encourage water run-off to prevent standing rainwater, and water ingress into vulnerable areas.

• Rounded edges (arrises), rather than sharp edges, to prevent the coatings thinning at these points, thus maintaining durability.

• End-grain sealants prior to assembly, to prevent water ingress into vulnerable areas around and into joints.

• Timber treatment systems, to extend durability when required.

• Opaque and translucent coatings applied in a controlled environment in the factory, providing more consistent protection than brush-applied finishes.

• Improved drained and vented glazing systems, increasing glazing unit service life. >>

Modern homes with wood windows. Photo: WWA

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Carbon dioxide emissions (CO2e) per window frame material over a 60-year life

Wooden windows, Norfolk. Photo: WWA

The sustainable choice To achieve net-zero carbon emissions by 2050, wood as a construction material is increasingly being specified for lowcarbon emission homes.

Over the years, the WWA has commissioned several studies on the environmental credentials of window frames made to its specification, to inform specifiers of the overall carbon footprint of members’ products. As part of membership criteria, all WWA manufacturing members must hold either FSC® or PEFC™ chain of custody certification. Timber sourced from sustainable forests not only means that more trees get planted than are felled, but it’s a proven way to reduce carbon dioxide in the atmosphere. Wood products are carbon stores and growing forests are carbon sinks.

In a study undertaken by Davis Langdon to compare the embodied carbon emissions of WWA windows with equivalent PVC-U units,3 it was found that each wood window made to the WWA specification saved 89kg CO2 e when used instead of a comparable PVC-U window – this is a saving of around 0.75 tonnes CO2e per average house (the equivalent of driving around 6,500km in a small family car).

The Heriot Watt University independent study found that a typical wood window made to WWA standards has a negative global warming potential over its estimated 56- to 65-year life service. Planned maintenance prolongs the life of the window and its carbon store effect, reducing the impacts caused by new replacements. Wood is the only window frame material that can be repaired in such a way.

FSC-A000503

www.trada.co.uk

Source: Taken from Comparison of Environment Impact (CO2 e) of Timber and PVC-U Windows by Davis Langdon, commissioned by WWA in 2010. n

About the author

Kevin Underwood Technical Director British Woodworking Federation

Further information For more information on the standards set by the Wood Window Alliance, visit www.woodwindowalliance.com

Further reading • Hislop, P., Wood windows: Designing for high performance, ISBN 978-1-900510-62-2, TRADA Technology Ltd, 2009 • WIS 4-16 Timber in joinery, BM TRADA, 2016

References 1. Whole Life Analysis of timber, modified timber and aluminium-clad timber windows: Service Life Planning (SLP), Whole Life Costing (WLC) and Life Cycle Assessment (LCA), Institute for Building and Urban Design, Heriot Watt University, June 2013 2. Service Life Estimation of PVC-U Windows, BRE Client Report number 228-618 3. Comparison of Environmental Impact (CO2e) of Timber and PVC-U Windows, Davis Langdon, 2010

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Upgrading timber joinery doors for fire resistance Guidance on assessing the suitability of existing joinery timber doors for upgrading, which have been considered worth retaining for architectural or heritage reasons, to give a 20- or 30-minutes’ fire resistance comparable with that of purpose-made fire doors.

T

he term ‘doors’ is used throughout this document to describe the complete unit, ie the door leaf, door frame, glazing and other ancillary components such as intumescent and smoke seals. The term ‘doorsets’ has deliberately not been used to avoid confusion with the definition used in harmonised European standards to describe a product that would need to be CE marked to be placed on the market within the EU. The information contained in this WIS has been written specifically for timber doors that have been constructed using traditional joinery methods and is intended to give guidance on assessing the suitability of upgrading the performance of existing timber joinery doors that have been considered worth retaining for architectural or heritage reasons.

Upgrading to 60 minutes’ performance will rarely be possible.

Upgrading the fire resistance of existing timber joinery doors is a common requirement in heritage buildings. Conservators look for solutions with minimal impact on the appearance and function of existing doors.

The requirements for fire doors are quite complex. TRADA’s WIS 1-13: Performance of fire-resisting timber-based doorsets1 explains the principles.

Strategy to upgrade for fire resistance A fire door is designed to function both as a door and as a barrier to a fully developed fire in a building. (The term should really be ‘fire-resisting doors’ since leaf and frame act together in a fire-resistance context.) Although any closed door will have some delaying effect on the development and spread of a fire, a fire door must be proven to be capable of resisting the effects of a standard fire test for stipulated periods, typically 30 minutes’ fire resistance in most publicly accessible heritage buildings but it could be 20 minutes in residential properties.

However, there will sometimes be circumstances when particularly interesting or valuable doors may be retained even when the upgrading is only likely to achieve a shorter time. (In these circumstances, agreements may be made between conservation and fire officers to add additional compensatory fire-resisting measures.)

When refurbishing or upgrading the passive fire protection within existing buildings, it is usually preferable to install new third-party certified doors that incorporate the latest technology. However, there are some circumstances where it is necessary or desirable to retain the existing doors but improve or enhance their performance capabilities to meet the required statutory level according to building regulations (for example, fire resistance, smoke control, accessibility, acoustics, impact safety). Examples are: • a change of use of the building necessitating compliance with building or fire regulations • listed building consent • general improvement of fire safety • retroactive legislation • insurance requirements.

Upgraded doors ready for full-scale testing

www.trada.co.uk

The existing door installation and the condition of the leaves and the frame will vary from building to building and door to door. Therefore, it is vital to look at each case individually when assessing the potential for upgrading. >> Timber 2020 Industry Yearbook

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Protection Fire doors

Normally, representative samples of an intended design of fire door are required to be tested to: • BS 476-22 Methods for determination of the fire resistance of non-loadbearing elements of construction,2 or • BS EN 1634-1 Fire resistance tests for doors, shutters and openable windows.3 Depending on the heritage status of the doors, and number of doors, it is not always possible to destructively test the door design being considered for upgrading, as the fabric that the conservator is trying to retain will be destroyed in the fire test. It is therefore necessary to make an assessment of performance of the existing door and its suitability for upgrading, by considering the construction of the door, against the available test evidence for the selected method of upgrading.

An assessment will therefore provide an opinion of the upgraded door’s likely fire-resistance performance, but will be based on relevant and sufficient test evidence, where the upgrading measures have previously been tested on fundamentally similar timber door designs.

Assessments must be prepared and issued by competent fireresistance product assessors, such as are likely to be found at fire test laboratories accredited by the United Kingdom Accreditation Service (UKAS). In most cases, regulatory authorities are willing to accept an assessment of performance, but it is recommended that engagement and acceptance of this approach is sought as early in the project as possible to avoid any problems during the project or at handover.

Suitability of existing doors for upgrading After deciding that upgrading is desirable, the next step is to determine whether it is possible. It will be important at the outset to agree with the building control and fire authorities the level of performance to be achieved and the acceptability of an upgrading solution backed by an independent assessment.

If upgrading is acceptable, the next step is to assess whether each door and frame under consideration is suitable. This will depend on the leaf size, design and materials used, and, importantly, on its current condition.

The leaf itself will need to be in good condition with no gaps or loose joints. Where leaf edges have been knocked and damaged, they may need to be trimmed back and re-lipped to give good, clean edges. This operation can also correct doors that have become out of square and/or are a poor fit in their frames. www.trada.co.uk

Having established that the door leaf is in good or repairable condition, it should be examined to see whether it has the potential to be upgraded. While the framework of a substantial, panelled hardwood door may require little attention, a door leaf with relatively thin softwood framing and lightweight timber panels is unlikely to be suitable for upgrading.

There are a variety of other timber joinery door designs that are typically found within heritage buildings. Although some have a similar appearance, there can be subtleties in leaf construction that may need specific consideration when selecting an appropriate upgrading method (assuming one is available). For this reason it is recommended that specialist advice is sought.

Table 1 gives general guidance on the prospects of upgrading the common types of door leaves found in heritage buildings, to 20 or 30 minutes’ fire resistance (in a suitable frame).

Door type

Comments

Ledged and braced

Unlikely to be suitable for retaining for upgrading for fire resistance as there will be insufficient thickness at the leaf edges to accommodate an intumescent seal

Framed, ledged and braced

Ability to upgrade depends on joints between boards, fixings and the thickness of the leaf framing (typically a minimum of 44mm required for 30-minute fire-resisting applications)

Framed, solid with solid panels

Ability to upgrade depends on leaf thickness (typically a minimum of 44mm required for 30-minute fire-resistance applications) and the panel construction

Framed, solid with glazed panels

Ability to upgrade depends on leaf thickness (typically a minimum of 44mm required for 30-minute fire-resistance applications) and the type/installation of the glazing

Table 1: Suitability of timber joinery doors for upgrading

As well as the economics of upgrading, the feasibility will depend on the extent to which alterations in appearance can be accepted and whether maintaining the original appearance on both sides is desired.

Solid, unglazed doors It will not be possible to consider upgrading a door unless the type of construction and material used is known. Where the framing (ie, stiles, rails, framing, ledges and bracing, as appropriate) is manufactured from solid timber, it will be necessary to identify whether the species is softwood or hardwood to make an estimate of the potential burn-through resistance of the construction and its propensity to distort. >> Timber 2020 Industry Yearbook

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Protection Fire doors

A useful rule of thumb is that softwood chars at the rate of approximately 0.75mm per minute and hardwood at 0.5mm per minute (although the hardwood beech chars at the same rate as softwood).

Once examination and burn through estimates have shown that upgrading may be possible, the recommendation must be to consult an expert to determine the most effective and appropriate upgrading techniques for the doors in question.

It is also important to understand the construction of the framing (for example, jointing methods) to be able to consider the structural performance of the door leaf under fire test conditions and its ability to retain the infill panels and/or glass as appropriate.

Partly or fully glazed doors The most common approach to upgrading glazed apertures is to replace existing plain glass with a fire-resisting glass.

Historically, Georgian wired glass was commonly used, but unwired borosilicate glass is also available, as are unwired laminated glasses that incorporate intumescent layers and are capable of providing an insulation rating as well as integrity.

Additionally, the infill panels also need to be considered as often this will be the weakest part of the door leaf construction in terms of potential burn through. Some timber panels in heritage doors can be as thin as 6mm, which will burn through in less than 10 minutes in fire test conditions (possibly quicker depending on the condition and timber type of the panel – shrinkage and splitting of the panel will affect the burn-through rate, for example).

Incorporating non-insulating glass creates two main hazards for the fire resistance of a door. Firstly, the glass will heat up quickly and conduct heat into the back face of the glazing bead on the unexposed side of the door. Secondly, non-insulating glass permits the transmission of radiant heat through the glass on to the surface of the unexposed face bead. In both cases this can be sufficient to cause premature ignition. It is therefore necessary to install the glass using a proprietary intumescent glazing system with suitable chamfered hardwood beads and pin/screw fixings.

The glazing bead, glazing system and fixing detail is critically important and must have test evidence for use with the glass type and must be installed in accordance with the glass or glazing system manufacturer’s guidance. Any small change in tested detail can lead to premature failures during fire test conditions.

There may be occasions when a designer must consider retaining the existing glazing detail, for example in a leaded-light or stained glass panel door. In such cases there may be potential for applying ‘secondary fire glazing’.

Secondary fire glazing needs to be carefully detailed and installed to make sure that it provides the necessary protection. The glazing needs to stay in position long enough to provide the required fire-resistance performance and the direction of the fire risk may also need to be considered (typically secondary glazed units will be tested to provide protection from fire from one face only, usually the side of the door that the unit has been fixed).

A traditional joinery timber door upgraded with a fire-rated glazing system and glass

www.trada.co.uk

Fit of leaf in frame and size of leaf/frame gaps Limit the gap between the leaf and the frame to 3mm ±1mm. Where unacceptably large gaps occur or the leaf edges are damaged, the leaf edges may need to be using accepted and proven techniques, and the leaf edge gaps adjusted. >> Timber 2020 Industry Yearbook

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LIBERTY FIRE AND VISION

FIRAS CERTIFIED INSTALLERS OF FIRE RATED TIMBER DOORS, FIRE DOOR MAINTENANCE, FIRE STOPPING AND COMPARTMENTATION

• The ability to make the most complex buildings comply • Over 25 years experience • Highly trained staff • Vast experience of working in public buildings, hospitals, schools, police stations, etc...

• Covering the North of England • Large work force and No sub-contracted labour • All time-served tradesmen • Our own workshops

www.libertyvision.co.uk

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Telephone 01704 544355 Mobile 07790 666345

libertycontracts@talktalkbusiness.net

Protection Fire doors

Fully glazed traditional joinery double doorset with glazed side screens undergoing a full-scale fire resistance test

Sealing the leaf/frame gap An intumescent seal should be fitted across the head, down both jambs and at the meeting edges of double-leaf doors, to enable a door to achieve its maximum potential performance.

This will apply to both 20- and 30-minute designs. The seals may be fitted either centrally in the leaf edge, or centrally in the frame reveal opposite the leaf edge. Where the leaf is being removed for upgrading work it may be easier to fit the intumescent seal into the leaf edges. (It is worth noting that intumescent seals are available in a wide variety of finishes, including wood grain effects, which can help retain the original aesthetic appearance of the doors.)

An intumescent seal will activate when heat is applied to fill the gap between the leaf edge and the frame. Intumescent seals alone are not designed to offer any resistance to cold smoke but, when activated, are effective barriers to hot smoke, flames and hot gases.

It is now widely appreciated that a major cause of deaths in fire is ashyxiation, caused by inhalation of smoke, and greater emphasis is being placed on controlling cold smoke leakage.

To control the spread of cold or ambient temperature smoke, a seal capable of controlling smoke leakage needs to be fitted to the perimeter of the door leaf. Smoke control seals can either be separate to the intumescent seal or combined with the perimeter intumescent seal. www.trada.co.uk

For both intumescent and smoke seals it is important that the amount of interruption to the seals by hardware or other edge-mounted items is kept to a minimum, as supported by the seal manufacturer’s test evidence. Where intumescent seals are interrupted by hardware it may be necessary to provide additional intumescent protection to the item of hardware by fitting gaskets around the item. For smoke seals, it may be necessary to have a separate stop-mounted seal that can maintain continuity with the edge of the door without being interrupted by perimeter hardware.

Although it is not normally necessary to fit intumescent seals at the threshold of a fire door, a designated smoke-control door may require a flexible smoke seal that maintains contact with the floor or an automatic drop down smoke seal that is either face fixed or rebated into the bottom of the leaf.

Recent guidance within BS 8214 Timber-based fire door assemblies. Code of practice4 recommends that smoke-control doors are sealed at the threshold as described or, where this is not practicable, that the threshold gap is to be controlled to 3mm.

This does, however, conflict with the current guidance given within Approved Document B (Fire Safety),5 which states that the leaf of a designated smoke-control door is to have a leakage rate not exceeding 3m3/m/hour at the head and jambs only. Therefore, it is advised that the smoke sealing requirements are confirmed for a particular building prior to commencing with upgrading works. >> Timber 2020 Industry Yearbook

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Door frames may be hardwood or softwood for up to 30 minutes’ fire resistance, but they must: • be in good condition (or repaired using an appropriate approved repair technique) • have a minimum thickness of at least 30mm • be suitably fixed back to the supporting construction.

Frame to wall junction An important aspect that is frequently overlooked is the sealing of the frame to the surrounding structure. However, architraves and adjacent panels should be removed to check that no voids occur between the frame and the surrounding structure. If voids are present and remain unfilled, it is possible that a fire will consume the architrave or panel quickly and rapidly pass around the back of the frame to the ‘protected’ side of the door. The method of packing will depend on the size of the voids. BS 8214 contains guidance. If the situation on site does not match one of the methods given in BS 8214, specialist advice should be sought.

A restored and upgraded historic door at St Pancras International. St Pancras International is owned by London & Continental Railways. St Pancras International was designed and project managed by Rail Link

It is not necessary, in fire terms, to provide a threshold under a fire door, but it is advisable to avoid floor coverings running unbroken under the door. This is to prevent the spread of fire to the adjoining compartment by way of the floor covering; a metal carpet edging strip can provide a simple firebreak.

Frame construction Frame construction, specification and condition must be ascertained as it is an important aspect of the potential fire resistance performance of the door.

Door frames for heritage doors can vary widely in terms of materials, dimensions and condition. Additionally, heritage door frames will often include ornate panelling that may conceal critical aspects of the door frame design or installation in terms of the door frame’s suitability for use as part of a fire-resisting door. This may require an invasive inspection in order to be confident that the frame is suitable for retaining for a fire-resisting application. www.trada.co.uk

Suitability of existing hardware It should not be assumed that existing hardware is suitable for use on a fire-resisting door or that it is sufficiently well fitted. For 20 or 30 minutes’ fire-resistance performance hinges must be a good-quality brass, steel or stainless steel, which would be expected to have a melting point in excess of 800°C. If the hinges to be used are particularly deep or broad they may constitute a risk to the integrity of the door either by preventing the intumescent seals from providing sufficient cover at the edges or by transferring heat close to the protected face of the leaf. In such cases additional intumescent protection will be required or it may be that the hardware is not suitable for a fire-resisting application and needs to be replaced. Note that replacement restraining hardware will need to be CE marked to comply with the requirements of the Construction Products Regulation (CPR).

Latches should be as slim as possible to leave the maximum amount of the body of the door intact. Where the intention is to re-use an existing latch, and it has been confirmed as suitable for retaining for fire-resisting applications, it should be removed to check that no overmortising is present.

A door may have been fitted with a variety of latches during its lifetime and old mortises cut for previous latches will not necessarily have been filled. Any overmortising should be made good by infilling with a suitable timber block. Additionally, it may be necessary to consider intumescent gasket protection to the lock forend, keep and body, particularly if the lock is large and/or interrupts the intumescent seals fitted in the frame reveal or leaf edge. >> Timber 2020 Industry Yearbook

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Protection Fire doors

All fire doors, except those used as either duct or cupboard doors, should incorporate a self-closing mechanism.

The door closer should be fitted in accordance with the manufacturer’s instructions and must have been tested on a door of similar construction.

Methods of upgrading There is no ‘one-size-fits-all’ method of upgrading existing doors and the solution chosen will depend on the door construction, condition, situation and customer requirements.

It is important to highlight that all methods of upgrading will need to have been tested on fire-resisting door designs that are appropriate and relevant to the door being upgraded.

Proof of the tested performance for a particular method of upgrade does not guarantee it will be suitable for all door constructions. If there is any doubt about the applicability of an upgrading method, specialist advice should be sought.

The following techniques have been used successfully in the past.

Facing the door leaf with a non-combustible board This is one of the easiest methods of upgrading, although it does create a visually unattractive result. It is, however, favoured by some heritage authorities as it is a reversible process; removing the facing returns the leaf to its original condition. If used, apply facings symmetrically to each face.

The increased thickness and weight may affect the door frame and required hardware specification.

Sandwiching panels For panelled doors, the weakest area is generally the panel itself. In many cases the timber will be less than 10mm thick at the thinnest point. One method of upgrading is to remove the panels, split them through their thickness and insert a sandwich material, either an appropriate intumescent sheet or a non-combustible board.

This is more labour intensive than other approaches but does maintain the original finish, which can be important for heritage projects.

However, depending on the sandwich method, the panel may be considerably thicker than the original panel which can alter the appearance of the door due to the depth of mouldings. Such methods also interfere with the original fabric of the door.

Intumescent paper Intumescent paper and card can be used to selectively protect vulnerable areas such as the fielded area of panelled www.trada.co.uk

doors. The application thickness is controlled by the thickness of the paper. The timber finish can be restored with a veneer.

Intumescent paints and varnishes Intumescent paints and varnishes are available for use on timber-based, fire-resisting door where a maximum performance of 30 minutes’ integrity is required. These products require specific application techniques and rely on the underlying condition of the door construction. As with all upgrading methods, take care to ensure that full-scale test data for the product is both available and appropriate for the application in question. It is likely that other upgrading measures will be required in conjunction with these paints and varnishes.

Identifying upgraded fire doors There are currently no requirements for upgraded fire doors to be marked in any particular way. However, when considerable care and effort has been spent on undertaking sympathetic upgrading it would prove helpful, at a future date, to identify the fact that upgrading work had been carried out to a particular standard.

Therefore, a discreet method of permanent identification that will enable approving authorities to identify that the door has been upgraded, long after the actual work has been carried out, is recommended. n

Acknowledgement The Technical Division of Warringtonfire assisted in the drafting of this article, which is derived from Wood Information Sheet 1-32 Upgrading timber joinery doors for fire resistance, BM TRADA, 2020

References 1. WIS 1-13 Performance of fire-resisting timber doorsets, BM TRADA, 2018 2. BS 476-22:1987. Fire tests on building materials and structures. Methods for determination of the fire resistance of non-loadbearing elements of construction, BSI 3. BS EN 1634-1:2014+A1:2018. Fire resistance and smoke control tests for door and shutter assemblies, openable windows and elements of building hardware. Fire resistance test for door and shutter assemblies and openable windows, BSI 4. BS 8214:2016. Timber-based fire door assemblies.

Code of practice, BSI 5. England and Wales Building Regulations: Approved Document B (Fire Safety), Volume 1 - Dwellinghouses and Volume 2 - Buildings other than dwellinghouses, NBS, 2013, available at www.planningportal.gov.uk Timber 2020 Industry Yearbook

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Understanding modified wood Gordon Ewbank reports on modified wood technologies.

W

ood modification involves the action of a chemical, biological or physical agent upon the material, resulting in a desired property enhancement effective for the service life of the modified wood.

If the modification is intended for or confers improved resistance to biological attack, then the mode of action should, as far as can be determined, be non-biocidal. If in doubt, please check with manufacturer.

Characteristics of modified wood products For many end uses of wood, particularly where there is a risk of wood becoming wet, durability (resistance to biological attack) is seen as the key characteristic for determining its suitability for use. Most wood modification processes improve wood durability. However, improving durability is commonly not the sole effect of wood modification.

Although a range of wood properties may be affected by the modification process, the suitability of modified wood for a given end use is based on three main criteria: • durability to wood-destroying organisms (fungi and insects) • strength • dimensional stability in changing humidity.

Durability Service environments have been categorised into a series of use classes in BS EN 335. Five classes define different service

ACCOYA Slough Ice Rink. Photo: ACCOYA

situations on the basis of the likely biological hazard from the moisture conditions that may prevail.

Strength A measure of the ability of wood to resist outside forces, such as compression, tension and shear. Different aspects of strength may be more relevant than others for particular end uses. (Please check with manufacturers for product specific claims regarding effects on strength.)

Type

Modification process

Examples

Chemical modification

Those that involve a chemical process (such as acetylation and furfurylation)

Accoya Medite Tricoya Extreme MDF Kebony

Physical/ combined modification

Those that involve a combination of factors that may include impregnation, chemical and/or thermal process stages (for example, densification)

Lignia

Thermal modification

Those that involve a physical process such as heating or heat and pressure

Adobo Thermowood Brimstone

Table 1: Current commercially available modified wood technologies

www.trada.co.uk

Dimensional stability Dimensional change under the influence of fluctuating humidity (see section on coatings).

Modified wood performance in fire The performance of modified wood products in fire can normally be enhanced using a secondary flame-retardant treatment. Such treatments can also meet UK Building Regulations requirements, where applicable. Please check the Wood Protection Association (WPA) website for full details of recommended, independently assessed treatments and where they can be obtained. >> Timber 2020 Industry Yearbook

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Protection Modified wood

Use class

Service situation

Typical service situation

Chemical modification

Physical modification

Thermal modification

1

Above ground, covered.

Permanently dry

Internal, with no risk of wetting

Not required

Not required

Not required

2

Above ground, covered (eg by a roof). Occasional risk of wetting

Internal, with risk of occasional wetting

Y

Y

Y

3

Coated, above ground.

Exposed to frequent wetting.

External, above dampproof course (dpc)

Y

Y

Y

Uncoated, above ground, not protected. Exposed to frequent wetting

External, above dampproof course (dpc) uncoated

Y

?*

?*

4

In contact with ground or fresh water. Permanently exposed to wetting

Timbers in permanent contact with the ground or fresh water

Y*

N

N

5

Permanently exposed to wetting by salt water

All components in permanent contact with sea water

Y*

N

N

Independent quality assurance The properties of modified wood are very dependent on the modification process used.

To be certain of consistent performance, products must be produced using a factory production control (FPC) system, with third-party accreditation specific to each individual product and process. n

About the author

Table 2: Use class, service situations and suitable types of modified wood. *Generic assessment: Please check with manufacturers for product specific performance claims. Suitability for use classes 4 and 5 must be supported by extended field test data

Gordon Ewbank Chief Executive Officer Wood Protection Association

Coatings for modified wood

Further information

Coatings may be applied to modified wood using both factory and manual techniques. The long-term performance of a coating and its maintenance requirements are both important factors. It is generally accepted that the more dimensionally stable a material is, the more likely that the frequency and cost of maintenance is reduced. Where modified wood is factory coated, it often comes with an extended warranty. The enhanced stability of modified wood is proving increasingly popular for joinery and external trim.

The WPA has two quality approved schemes for modified wood products. One provides an independent, expert assessment of the field data package underpinning claims for enhanced performance in use class 4 (ground contact); the second involves the independent auditing of factory production controls used in modified wood manufacture.

For further information and guidance on any of the above, or indeed any of the other technologies available from WPA members, please visit www.thewpa.org.uk

Further reading • WPA Wood Selection Guide • WPA Guidance Note MW2, Establishing the performance of modified wood • WIS 2/3-63 Modified wood products, BM TRADA, 2017 LIGNIA Bridlington Leisure Centre. Photo: LIGNIA

www.trada.co.uk

• BRE Digest 504, Modified wood - an introduction to products in UK construction Timber 2020 Industry Yearbook

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Composite decking: what specifiers need to know

The popularity of composite decking is soaring. What do specifiers need to know about this new material and how can they be sure that what they are specifying is fit for purpose? Janet Sycamore reports.

Composite decking Photo: Hoppings Softwood Products Plc

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“Anything other than generic, composite products are manufactured to individual recipes and come in different shapes and sizes, all of which can have an impact on overall performance.”

T

imber decking is well established in terms of its performance and the attributes of different timber species are well known, but composite decking is relatively new to the market and its properties are not as fully understood. What is composite decking?

The term ‘composite’ conveys ‘something that is made up of separate parts’. It is used generically in the decking industry to describe three different product types – some contain wood fibre, some do not: 1. Wood-polymer composite (WPC) – sometimes referred to as wood-plastic composite – and its principal component parts are wood fibre and polymer(s). Wood fibre can be any species of wood, ground into a ‘flour-like’ substance.

2. Natural Fibre Polymer (NFC) and its principal component parts are natural fibre and polymer(s), but not wood-based natural fibre. Natural fibre might be bamboo (a grass), rice husks, pulp fibres or peanut hulls, for example.

3. A mixture of ingredients, none of which can be described as natural fibre. The obvious example here is a commercial product that has a polyurethane top and a chemically bonded crushed stone, fibreglass and polyurethane core.

The polymer (plastic) component can take on several forms but is typically high-density polyethylene (HDPE), polyvinyl chloride (PVC) or polypropylene (PE). The polymer component might be virgin or recycled or a mixture of the two. Where recycled components are used, it is important that manufacturers build in a quality process to check for contaminants.

Anything other than generic, composite products are manufactured to individual recipes and come in different shapes and sizes, all of which can have an impact on overall performance. In addition to the core ingredients, the use of multiple additives in the production process helps to ensure that the product is effective in use. These additives help tailor the product and can set the brand apart in terms of quality. >>

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Composite decking. Photo: Deckbuilders UK Limited

WPC WPC products are the most widely adopted by UK suppliers.

Broadly speaking there are two profiles – hollow or solid, hollow being the least expensive. They may be capped with a thin layer of plastic. While there are two UK-based manufacturers, much of the UK’s composite requirement is imported from the US, Japan, France or Germany.

How is WPC decking is made?

The basic manufacturing process is to blend then melt together finely ground dry wood fibres with ground polymer and powdered additives. The mixture is then extruded through an aperture plate to create the size and shape of the component required, then cooled. The finished product is then processed further to give the surface a more wood-like appearance, by either planing, embossing or capping.

The principle is to fully encapsulate the wood fibre with the melted polymer to produce a homogenous mixture. It sounds simple but it is not. Wood fibre and plastic are natural enemies because wood contains moisture – water and plastic don’t mix. Excess moisture removal is therefore important and if compromised will lead to poor blending with an increased risk of product failure in service. www.trada.co.uk

Raw material quality control, colour stability, fibre dispersion, and controlled and even cooling are among the many factors to consider when producing a product of suitable density and quality. There are many instances during the manufacturing process where things can go wrong and many opportunities to take shortcuts.

How can you be sure that the product you choose will perform?

Based on its involvement in several inferior performance claims, the Timber Decking and Cladding Association (TDCA) has concluded that it is probably best not to rely on the supplier’s product performance claims alone. If the product is quality-oriented, independent test data to support its physical and durability attributes should be available to underpin any performance claims made. If the supplier claims that the product will last a predicted length of time, ask to see evidence of how that claim is substantiated. If a performance guarantee is given, be sure to examine its terms and conditions, and be aware of who underwrites it – that will be who you or your client will need to deal with in the event of a claim.

Testing methods for composite decking – WPC and NFC – are detailed in European Standard BS EN 15534-4. >> Timber 2020 Industry Yearbook

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About the author

Janet Sycamore Head of Operations Timber Decking and Cladding Association www.tdca.org.uk

DeckMark® accreditation scheme The TDCA has developed a new product approval scheme (PAS) for deck boards made from wood fibre polymer composites. The decision to launch the scheme was taken following a surge in the number of product complaints about underperforming composite products.

Developed as a differentiator of product quality, the scheme identifies those products that can meet particular high standards. Based on BS EN 15534-4, the TDCA scheme document details the requirements, including seven mandatory tests that must have been undertaken by an independent, accredited test body to demonstrate compliance. The scheme also requires that clear, unambiguous information is given in terms of any guarantees, recycled content and if any infrastructure is in place to facilitate recycling.

Ingredients of composite decking. Photo: TDCA

This standard gives pass/fail criteria for a whole range of properties including flexural, impact resistance, artificial weathering, UV stability/colour fade, durability, stability with changes in temperature, slip resistance and fire performance.

You could ask to see such test data from independent test houses for the attributes required. Alternatively, you could check if the product is DeckMark® accredited under the TDCA’s product approval scheme.

How is WCA disposed of after service?

The TDCA recommends consulting the product manufacturer for end of life disposal or recycling advice as it will be product specific. Some may accept the used product to go back into the production process. For others, it will be landfill. n www.trada.co.uk

Every data package submitted to the scheme is scrutinised by an expert panel before the product can be granted approval. Ultimately, the approved products will strive to achieve and maintain the accredited DeckMark® status.

The aim of the scheme is to provide the market with a means of identifying good-quality products whose claims can be substantiated with independently verified and relevant test data. Accredited WPC companies will be able to carry the esteemed TDCA DeckMark® logo, providing the specifier and consumer with confidence in their choices.

To find out more, visit www.tdca.org.uk/deckmark-and-cladmark

Further reading Hislop, P., Kaczmar, P., Searle, A., Timber decking 3rd edition, ISBN 978-1-909594-75-3, BM TRADA, 2018 Timber 2020 Industry Yearbook

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Landscape and exteriors Cladding

Exterior timber cladding – a coating conundrum Contemporary advances in coatings technology have led to an increased variety of available board profiles and decorative options for exterior timber cladding. Peter Kaczmar examines the pros and cons of specifying uncoated or finished timber as a cladding material.

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rchitects and specifiers now have an extended palette of design possibilities enabling them to be ever more imaginative in the way timber, as a cladding material, is used. However, this rise in popularity of timber cladding as a means of protecting the outer facade of dwellings in the UK has been a protracted process.

This was due mainly to the performance limitations of the paint finishes originally available for its decoration. These coating systems were mainly alkyd-based, were relatively impermeable and brittle, and tended to trap moisture behind them. This would eventually manifest itself in premature peeling and cracking of the paint (Figure 1), which created a labour-intensive maintenance issue often requiring large areas of flaking paintwork to be removed back to bare wood before being repainted. This led to an early disenchantment with timber as a cladding material, and undermined its popularity for decades.

Significant improvements in the performance of paint systems eventually reversed this trend. The development of acrylic, vapour permeable coating systems, which enable entrapped moisture to vent out of the wood, meant that coating failures could be significantly reduced (Figure 2).

Figure 1: Siberian larch cladding with black opaque paint showing severe shelling and subsequent paint flaking on south-facing aspect

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There is now a large array of timber cladding design options available.

Paradoxically, these extended design possibilities, together with more informed architectural detailing practices, have led to greater experimentation with unfinished cladding systems (Figure 3).

This has resulted in a move favouring the specification of Figure 2: Shingle House, Dungeness. uncoated cladding, Photo: Charles Hosea Photography driven mainly by the prospect of obviating the necessity for periodic redecoration, with significant savings in long-term maintenance costs.

Additionally, the high cost associated with the erection of scaffolding has been a factor in delays to, or the omission of, timely maintenance cycles of finished cladding – maintenance that is vital in extending the lifetime of surface coatings. >>

Figure 3: Woodland classrooms. Photo: Jim Stephenson for Studio Weave

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Problems with uncoated cladding However, the use of uncoated cladding is not without its own issues, not least because of the unpredictable or inconsistent manner in which unprotected wood surfaces may behave and respond to the influence of solar radiation (Figure 4). Architects often specify uncoated cladding as a means of reducing maintenance costs, lured by the prospect of achieving a uniform, aesthetically attractive, silver-grey ‘patina’ to the wood as the cladding gradually weathers naturally with age.

For example, canopies or features that cast shadows onto the cladding will, over time, bring about the development of differential weathering patterns on the facade or, alternatively, bring about unsightly ‘tide marks’ created by the movement of water-soluble extractives naturally present within the wood (Figures 6, 7 and 8). In this context, ample consideration should be given, not only to the placement of uncoated cladding on the building but also to the propensity of certain ‘extractiverich’ species (such as oak, Western red cedar, iroko and sweet chestnut), to cause irregular and unsightly tide marks on building facades, particularly beneath canopies and overhangs. >>

Figure 4: Uncoated oak cladding installed beneath overhead walkway showing differential bleaching, weathering and discolouration reflecting differential levels of direct solar radiation received

However, this expectation may not always be achieved.

Over time, uncoated cladding can often develop uneven and unsightly black surface disfigurement, caused by the growth of melanised (black) yeasts that use the breakdown products of lignin (the polymer that binds the wood cells together) as a nutrient source (Figure 5).

Figure 6: Uncoated western red cedar cladding showing gradation in weathering patterns beneath recessed facade

Figure 5: Uncoated western red cedar cladding showing typical disfigurement caused by the growth of melanised surface yeasts

Other surface phenomena can arise on unfinished cladding as a direct consequence of the design of the building. In this regard, architects should be mindful that design features that can alter the weathering patterns of building facades can also play a pivotal role in the manner in which uncoated cladding systems behave. www.trada.co.uk

Figure 7: Uncoated western red cedar cladding showing ‘tide marks’ caused by migration of solvent soluble extractives

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• Open-jointed systems, being more tolerant of greater inservice movement, are usually coated with low-build stains.

Such coatings may require maintenance as much as every two years or even annually in situations of severe exposure, although their maintenance requirement may only involve a simple wash with detergent followed by reapplication of a single maintenance coat if carried out regularly. • Close-jointed systems are often coated with high-build opaque paints or stains in order to moderate in-service movement. In such cases, the interval to first maintenance may be five years or more. However, in the event of failure, these systems are far more labour intensive, requiring the removal of all failed and friable coating material down to the level of bare wood.

Careful consideration must also be given to the choice of colour when using opaque or semi-translucent finishes on cladding since, on south- and west-facing facades, excessive solar gain can be responsible for raising the surface temperature by as much as 60°C. This can lead to fissuring (Figure 9) or distortion of cladding boards, popping of nail fixings or shelling effects (Figure 1) where bands of latewood on tangentially cut boards can detach away from the surface.

Figure 8: Uncoated western red cedar cladding showing migration of extractives caused by differential exposure to water runoff during cycles of rain.

Considerations of maintenance The advantage of applying a surface coating to cladding is that the majority of the above-described disfigurement issues and differential weathering patterns can be prevented, albeit at the expense of a periodic maintenance requirement.

An important distinction must be made between maintenance requirements for finished and uncoated timber cladding.

For finished cladding: the application of a coating imposes an assured maintenance requirement (and cost).

For uncoated cladding: maintenance is not assured and may only be required occasionally or sporadically, depending on the nature of the disfigurement, and then only by way of power washing the surface, involving relatively little expenditure or effort.

The maintenance requirement associated with different coatings on cladding systems can vary dramatically, depending on whether they form a close-jointed, continuous facade, or an open-jointed rainscreen. www.trada.co.uk

Figure 9: Siberian larch cladding (south-west aspect) showing end splitting of board caused by solar gain due to cladding being coated black

Modified wood In recent years, the commercialisation of modified wood substrates, which can also be used as exterior cladding systems, has significantly extended the periods to first maintenance of the coatings applied over them. The significantly improved dimensional stability of modified substrates can also reduce in-service distortion of boards and extend maintenance intervals of surface coatings. In some cases these improvements can extend coating maintenance intervals by as much as 15 years (Figure 10).

However, as environmental pressures on all aspects of the construction industry take hold, it must be recognised that >> Timber 2020 Industry Yearbook

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Figure 10: Accoya® cladding at Spire Nottingham Hospital

applying a coating to the cladding, as well as using a modified wood substrate, increases the embodied energy of the system. This increase may, or may not, be offset in the longer term by way of an extended life cycle, depending on the adequacy and diligence of the maintenance programmes effected (again underscoring the vital role continued maintenance plays in extending the functional lifespan of coated cladding systems).

It is true to say that both coated and uncoated cladding options are capable of delivering striking and stunning end results but, as with all undertakings in the construction sector, long-lived success only comes with adequate and sympathetic understanding of the materials used. n

About the author

Conversely, while considerations of added energy embodiment will be less of an issue with uncoated (and nonmodified) wood substrates, their functional lifespan will likely be shorter on account of the greater dimensional stresses the uncoated boards are required to tolerate in service.

Coated or uncoated?

There is no easy formula that provides guidance on when coated or uncoated timber cladding should be specified in any given situation since, as always, such decisions are driven as much by personal preference and cost than by technical rationale. There are advantages and disadvantages in using both approaches, but there is commonality between the two strategies insofar as both demand that the client is made aware of their respective limitations and that expectations are managed accordingly. www.trada.co.uk

Peter Kaczmar Senior Technical Consultant BM TRADA

Further reading • Taylor, L., Kaczmar, P. and Hislop, P., External timber cladding, ISBN 978-1-909594-005, TRADA Technology Ltd, 2013 (currently under revision) • WIS 1-49 Cladding for timber frame buildings, BM TRADA, 2018 • WIS 1-50 Timber cladding for building refurbishment, BM TRADA, 2019 • WIS 2/3-1 Finishes for external timber, BM TRADA, 2016 • WIS 2/3-60 Specifying timber exposed to weathering, BM TRADA, 2018 • WIS 2/3-63 Modified wood products, BM TRADA, 2017 Timber 2020 Industry Yearbook

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External timber cladding – updated guidance Dr Ivor Davies gives the background to the forthcoming External timber cladding 4th edition – the definitive industry guide.

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uch has happened since the publication of the 3rd edition of External timber cladding in 2013.

The market for external timber cladding has continued to expand, driven by the material’s unique combination of practicality, visual appeal and performance benefits. At the same time, however, questions have been raised about how appropriate timber is as a cladding material on some types of building.

Why is updated guidance needed?

When external timber cladding is used on small buildings and sheltered sites, it is straightforward to design and install. But the growing use of external timber cladding on larger and more complex building projects has increased the associated

risks. This means that external timber cladding now needs to meet similar performance standards to those cladding materials with a longer history in demanding applications.

Accurate and up-to-date design guidance is needed.

These issues were brought to the fore by the Grenfell Tower disaster in June 2017. Although no timber was involved in the fire, questions have since been raised about the safety of all types of combustible cladding material. The four sets of UK Building Regulations are also being updated.

Some timber industry bodies have responded to these challenges by updating their guidance on the fire safety of timber-clad facades. While these initiatives are an essential first response, they are not a substitute for the more wideranging treatment of the subject that only a new and fully revised edition of External timber cladding can provide.

A further impetus for updating the guidance is the BSI publication of revised BS 8605 – the British Standard for external timber cladding. The revised Standard is in two parts: • BS 8605-1 gives methods of specifying the characteristics of external timber cladding; it does not include other components in the cladding assembly, such as support battens.

Western red cedar, board-on-board cladding, Garden Studio, Oxford. Photo: Hayward Smart Architects

www.trada.co.uk

• BS 8605-2 (not yet published) gives best practice recommendations for designing and installing all parts of the external timber cladding assembly, and it provides specification guidance on those components in the assembly that BS 8605-1 does not cover. >> Timber 2020 Industry Yearbook

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External timber cladding 4th edition The 4th edition of External timber cladding will mainly focus on the key recommendations in BS 8605-2. It explains the background to and practical application of those recommendations, while giving additional guidance – on timber-clad roofs, for example – that is not available in the BS 8605 series. For ease of use, the guidance will be structured in a similar way to BS 8605-2.

The new edition of External timber cladding will include: • an outline of the benefits of timber compared to other cladding materials • discussion of each stage in the design and construction process • expanded guidance on fire safety and structural performance • new construction details for the main connections and junctions on a timber-clad wall • information on the latest material options such as modified woods and surface coatings.

The guidance on fire safety and structural performance is particularly important.

Fire safety In recent years considerable effort has been devoted to developing fire-safe solutions for timber-clad facades. This work has been carried out in several countries, most notably in Finland, Germany, Switzerland and Austria. Building regulations in these countries have been updated to take account of the research findings and this has created new opportunities for timber. In Finland, for example, market research has found that people feel safer in a timber-framed and timber-clad building, built to the new generation of fire regulations, than in an all-concrete building constructed in accordance with previous legislation.

The UK is in the process of adopting the latest fire safety measures for facades, although their implementation varies between the four sets of UK Building Regulations. This is unavoidable because these regulations need to take account of local conditions such as building practices and climate.

Statutory documents supporting these regulations restrict the use of combustible cladding materials (such as timber) in some circumstances. In most cases, however, timber-clad facades on low- and medium-rise buildings are capable of meeting provisions in the statutory documents providing that the cladding design and construction follows best practice as described in BS 8605-2.

Therefore, although external timber cladding might be restricted in some applications, such as on tall buildings, this is not necessarily a problem. Most countries with widespread use of timber construction already restrict timber cladding on tall buildings and some high-risk uses. The revised guidance will highlight where the current legislative changes could be an opportunity for external timber cladding to expand its market share in specific applications.

Structural performance The 4th edition also offers guidance on the structural performance of external timber cladding. UK Building Regulations require consideration of the structural performance of external cladding. This is because external cladding can present a life safety hazard if it becomes detached from the building due to wind damage, or if there is inadequate provision for movement or self-weight. The risk of wind damage is greatest on high-rise buildings and those in exposed locations. Movement and self-weight risks can occur on any size of building.

Horizontal ThermoWood® cladding, Metsä Wood Headquarters, Finland.

Photo: Patrick Hislop

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External timber cladding assemblies are usually fixed to and supported by a structural backing wall. Although such

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has updated the guidance on cladding connections so that it is evidence based.

This means that some longestablished practices are no longer recommended.

The structural design of an external timber cladding assembly needs to be in accordance with the relevant structural Eurocodes. The guidance in BS 8605-2 is consistent with these documents although – being simplified – it is necessarily conservative. External timber cladding will give clearer and more concise structural information than can be provided in the Standard. n

Open Academy, Norwich. Photo: Hufton+Crow Photography

assemblies are non-loadbearing, they need to be capable of carrying their self-weight and any imposed loads and transmitting them to the building’s structure. This capacity needs to be maintained for the design life of the building, assuming anticipated maintenance.

Traditionally, structural engineers have not been involved in the design of external timber cladding assemblies, except on some tall buildings or when checking the work of others during post-completion assessments. This can lead to problems if the cladding assembly is not designed to ensure that it will be robust in its service conditions. There are four issues to consider: • loads acting from the cladding onto the structure • self weight • attachment of the cladding assembly • movement and tolerances.

Loads acting on the structure are the responsibility of the building’s project engineer, whereas the other three issues are normally the concern of the cladding designer.

Consequently, BS 8605-2 gives simplified engineering design guidance that can be used by non-engineers in most circumstances and highlights those conditions where a full structural analysis is advisable.

Guidance for external timber cladding connections has developed over time and is often based on ‘rule of thumb’ instead of engineering calculation. Consequently, BS 8605-2 www.trada.co.uk

About the author

Dr Ivor Davies Wood scientist and technologist Lecturer and Research Fellow in the School of Engineering and the Built Environment at Edinburgh Napier University.

Member of the British Standards Institution technical committee responsible for the BS 8605 series and Chair of the relevant drafting panels.

Technical consultant for the Timber Decking and Cladding Association and undertakes expert witness work on timber-related disputes.

Further information External timber cladding 4th edition will be published in 2020 and will be available to buy from https://bookshop.trada.co.uk

Further reading • Taylor, L., Kaczmar, P. and Hislop, P., External timber cladding, 3rd edition, ISBN 978-1-909594-005, TRADA Technology Ltd, 2013 (currently under revision) • WIS 1-49 Cladding for timber frame buildings, BM TRADA, 2018 • WIS 1-50 Timber cladding for building refurbishment, BM TRADA, 2019 Timber 2020 Industry Yearbook

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Education Architecture

Teaching construction to first-year architecture and architectural technology students

Architecture has evolved considerably over the past few decades. Maria Vogiatzaki explores the route to contemporary teaching and practice, and explains how Anglia Ruskin University embeds this in its teaching programme with a combined cohort of students.

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p to the early 1970s, the prevalence of the positivist, scientific, truth-based paradigm of architectural design as a process to be dictated by rationality, shaped the teaching of construction as the teaching of the basics related to building materials and techniques. Schools of architecture taught these basics in isolation from the design studio, covering the properties of the most popular materials such as stone, concrete, timber, glass and steel, and the standard construction details for their various roles in a building.

In parallel, to be consistent with the conception of the rationalistic nature of architecture, teaching included familiarising students with the basics of structural design calculations.1 The industrial context and mass-production lines that yielded identical elements promoted the idea of standardisation.

Modern developments In the postmodern 1970s and 1980s, architectural design was guided by the humanities. The focus was on the meaning of a design gesture, bridging polarities – such as the old and the new, the modern and the traditional, the local and the global. This, alongside the invention of new building materials, introduced new construction techniques, which would accommodate these materials and combine them with the traditional ones.2 Stretching materials to their limits was seen as the definition of innovative architecture. Deviation from the rules and the basics were initially the pursuits of avant-garde schools of architecture, but later on many other educational institutions followed suit increasing complexity in teaching construction by means of resolving the complex construction of a complex building. www.trada.co.uk

Schools of thought from the Beaux Arts, the Arts and Crafts and the Bauhaus addressed the bonds between thinking and making, between an idea and its materialisation. From the 1990s onwards, there have been cases where the sequence from idea to building was inverted, with materials and techniques dictating the form a building would attain.

Information technology, AI and robotics, and algorithmic thinking have all become equal players alongside the architect in contemporary architectural practice. One-off, bespoke manufacturing techniques often become the hallmark of design and building innovation in response to the prevailing idea of uniqueness and originality.3 With the development of digital design and fabrication tools, from software to hardware, the building industry offers unique, yet repeatable, mass customised artefacts.

The current climate emergency has led to vocal appeals for the design and construction industry to address its responsibilities for the impact of building on the environment.4 The era of Big Data and the Internet of Things, combined with the evolution of smartness in building contributes to a more environmentally conscious built environment.

A new approach In this context, Anglia Ruskin University has redesigned its first-year course of architecture and architectural technology to articulate all the above-mentioned issues and offer its students an updated approach. Our conviction is twofold: both architects and architectural technologists are taught together to exchange expertise, and construction is appreciated in the context of the design studio.

1. For whom do we design?

The first question ‘for whom?’ do we design, the ‘Anthropos in its scientific and humanitarian conception’, is partly answered through an appreciation of its social and physical entity >> Timber 2020 Industry Yearbook

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manifested through its anatomy that allow it to practice its everyday activities.

By appreciating the sizing of the parts of the human body and the limitation it has due to its anatomy and structure, we can therefore appreciate its capacities and limitations and can therefore design for it accordingly. First-year students measure a real model and then make a one-to-one scale model. This helps them to appreciate the sizing and limitations of what a body can or cannot do.

2. Where do we design?

The focus of the London study visit is on public building extensions, sensitivity to the sense of place, juxtaposing or blending the old and the new, or the natural and the artificial are the focus of the London study visit. Students record and communicate their impressions by annotating drawings and images on the materiality of the old and the new, and the palette of materials and spectrum of techniques employed on each occasion. They thus become familiar with the diachronic modification of the relationship between form and materiality.

What do we design and how?

Work focuses on the basic geometric elements; namely the point, the line, the surface and the volume; a consciously reductionist simplification that constrains design to its geometric and volumetric qualities. Various everyday objects are selected, a rule (algorithm) is invented to allow difference and repetition, multiplication, mutation and choreographing through abstraction, for an artefact to come about – all communicated through both drawings and physical models.

Iterative processes unfold, physical models are made, materials are harnessed, and techniques are deployed, persevering in achieving the transition from an idea, a concept and a rule to a built form through materiality.

The pavilion project The first-year effort culminates in the building of a 1:1 pavilion out of timber – a true hands-on experience. From the previous phase, students compete and select among themselves the strongest artefacts that emerge able to offer shelter. They elaborate on the artefact from 1:50 to 1:1 construction details, turning it into a small-size pavilion for the school yard, appreciating the various scales appropriate to investigate the different degree of detail and their usefulness to various audiences, from clients, to design partners, to fellow engineers, to builders.

The teaching group of architects is enriched by structural engineers, architectural technologists and industrial partners.

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Pavilion models. Photo: Maria Vogiatzaki

The design phase is followed by the feasibility study, the production of working drawings, the design of the construction sequence and, finally, the manual machine labour starts.

Manual-machine labour stage. Photo: Maria Vogiatzaki

A pavilion is an ideal vehicle because: • it is appropriate to accommodate a smooth transition from the initial exercises that preceded • it is a small-scale built form, accomplishable in both design and construction, easily and quickly • despite the fact that it is a building, it does not require weatherproofing, allowing the students to concentrate on thinking, designing the form, resolving the structural elements, the key joints and the overall ground-to-sky progression • it is light and does not impact the site • it is demountable and can be taken down and transported easily, a requirement that adds an extra challenge.

Timber is the chosen material because: • from an educational point of view, timber is a familiar material students already use to produce models (balsa wood, plywood and skewer sticks)

Education Architecture

• from a practical point of view, timber is malleable and light compared to other materials, comes ready to use in various shapes and sizes, and requires easily available tools • from a structural point of view, timber can work both in tension as well as in compression • from an ecological point of view, timber is one of the least hazardous materials to the environment and is sustainable • from a health and safety point of view, timber is neither toxic nor dangerous for the students to use.

After running this pedagogical experiment for one year, the role of an industrial partner is crucial for its success. Thankfully, the liaison between TRADA and the teaching team was impeccable.

Samples of various timbers and timber products were brought to the studio, a lecture on timber was delivered and printed material was disseminated. TRADA participated in all meetings on the contest to choose the most realisable pavilion, to work on the feasibility and discuss the construction sequence.

TRADA, working with the East Anglia Timber Trade Association, brought the material sponsors – UPM, Meyer and Hoppings – on board, also introducing us to and facilitating the CNC material cutting phase at Grymsdyke Farm. It took a week to prepare, laminate and glue the elements and install fixings into the ground. The on-site assembly took an additional week.

The finished pavilion. Photo: Maria Vogiatzaki

Both staff and students have gained immensely from this experience. This initiation repositions architecture away from its clear-cut distinctions of being either about the arts or about science, as its hybrid nature oscillates between the two. Our teaching approach is trying to embrace the contemporary role of architecture and architectural technology to be creative, innovative, relevant and aware of the social and political context in which it is bred. n

About the author

Professor Maria Vogiatzaki MArch, PhD, ARB, RIBA Architect, Educator, Researcher Anglia Ruskin University

References 1. Voyatzaki, M. (ed.), Architecture and Engineering: The Teaching of Architecture for a Multidisciplinary Practice, University of Plymouth: European Association for Architectural Education, ISBN 2-930301-00-7, 2000 2. Voyatzaki, M. (ed.), ‘Accommodating New Aspects of Interdisciplinarity in Contemporary Construction Teaching’ in Transactions on Architectural Education, No 34, European Association for Architectural Education, ISBN 2-930301-31-7, Charis Ltd, 2007 3. Voyatzaki, M. (ed.), File to Factory: The Design and Fabrication of Innovative Forms in a Continuum, ISBN 978960-99008-1-2, p309, Charis Ltd, 2010

Construction of the pavilion. Photos: Maria Vogiatzaki

www.trada.co.uk

4. Voyatzaki, M. (ed.), ‘Architectural Education and the Reality of the Ideal: Environmental Design for innovation in the postcrisis world’ in Transactions on Architectural Education, No 61, European Association for Architectural Education, ISBN 978-2-930301-60-0, Charis Ltd, 2013 Timber 2020 Industry Yearbook

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TRADA Membership benefits

Get the most from TRADA membership TRADA members are entitled to a wide range of marketing and technical benefits. These benefits are intended to function as a web-based knowledge resource covering all aspects of timber design, specification and use.

Access the latest technical information online 24 hours a day TRADA has accumulated a comprehensive online catalogue of technical resources since its founding in 1934. Excluding our Eurocode 5 design tools and Books Online library, these resources are generally available to download as printable PDFs for TRADA members.

• Wood Information Sheets (WIS) are the definitive guide to good timber design and provide a thorough introduction to many timber topics. Each WIS is a 4–10 page document that is methodically written and reviewed, and packed with detailed illustrations.

• The National Structural Timber Specification (NSTS) is an ambitious initiative by TRADA to support the rapidly increasing use of timber. It aims to be the definitive, stand-alone national specification for structural timber, complementing the existing national specifications that are widely used for steel and concrete buildings. The NSTS covers information exchange, materials, fabrication, erection, protection and quality assurance, with a specification template exclusive to members.

• timbersizerPro and timberconnectionsPro enable users to select the most efficient timber cross-sections for their design and identify appropriate connections in an instant. These online calculation tools customise designs

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and generate instant PDF reports for record-keeping and Building Control purposes. Based on Eurocode 5 design code (EC5), they are regularly reviewed and updated to ensure designs are compliant with the latest Eurocode standards.

• The Books Online section includes the full text of many TRADA publications for free viewing, exclusively to TRADA members. Bestselling titles accessible online include: Timber frame construction: designing for high performance 5th edition, Structural timber elements: a pre-scheme design guide 2nd edition, and Cross-laminated timber: design and performance.

• Publications are available at: www.trada.co.uk/publications

Need help accessing these benefits, or want to learn more about TRADA membership?

Give us a call on +44 (0)1494 569603 or email membership@trada.co.uk

TRADA Membership benefits

Free technical helpline TRADA’s technical helpline is available 9–5pm Monday to Friday. Simply call +44 (0)1494 569601 to speak to a member of our technical team, subject to a maximum of 30 minutes per enquiry. They will do their best to answer all your timberrelated questions, or put you in touch with someone who can.

Advice on a chargeable consultancy basis is available for projects requiring greater input.

Marketing benefits As a TRADA member, you have access to our marketing tools, which aspire to put you in the spotlight when used in unison.

• Members benefit from a free company listing in our online Find a Supplier directory. Users can upload full company details, a logo, available products and services, captioned images, multiple brochures, and certification.

Company listings are indexed by Google and regularly appear in search results, while uploaded brochures and images appear in relevant site-wide search results on the TRADA website. Those perusing the Find a Supplier directory can search for you by name, key words that appear within your company description, products and/or services, and location – providing multiple ways of finding potential customers.

• Members also benefit from free entries in the TRADA Timber Industry Yearbook, an annual publication that is distributed free of charge to more than 3,000 specifiers and manufacturers. It includes an alphabetical list of TRADA members with contact information and a buyers’ guide, in which member companies are included under their principal business activities in up to five categories. n

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TRADA Events calendar

FEBRUARY 2020

MAY 2020

17–19 February TRADA University Challenge Cardiff

18 May Timber Frame for Engineers High Wycombe

24–28 February Visual Strength Grading: Softwoods Princes Risborough

19–21 May Clerkenwell Design Week London

27–28 February Visual Strength Grading: Softwoods – Refresher Princes Risborough 27 February ASBP Healthy Buildings conference London

MARCH 2020 3–5 March Futurebuild London 12 March Timber Frame Construction High Wycombe 10 March – 22 May Wood Awards – Call for entries London 2 March – 12 June TTJ Awards – Call for entries London

APRIL 2020 22 April Timber Frame Construction Wednesbury 27 April – 1 May Visual Strength Grading: Softwoods Princes Risborough 30 April – 1 May Visual Strength Grading: Softwoods – Refresher Princes Risborough

JUNE 2020 11 June Timber Frame Construction High Wycombe 17–19 June Visual Strength Grading: Hardwoods Princes Risborough 18 June WoodBUILD Cardiff 22 June Eurocode 5 – Essentials High Wycombe 29 June – 3 July Visual Strength Grading: Softwoods Princes Risborough

JULY 2020

Timber 2020 Industry Yearbook

TBC TTJ Awards ceremony London

OCTOBER 2020 6–8 October UK Construction Week Birmingham 12 October Eurocode 5 – Connections High Wycombe 21 October Timber Frame Construction Wednesbury

NOVEMBER 2020 2 November Timber Frame for Engineers High Wycombe 4–6 November Visual Strength Grading: Hardwoods Princes Risborough

2–3 July Visual Strength Grading: Softwoods – Refresher Princes Risborough

9–13 November Visual Strength Grading: Softwoods Princes Risborough

15 July Timber Frame Construction Wednesbury

11 November The Better Timber Buildings conference London

SEPTEMBER 2020 17 September Timber Frame Construction High Wycombe

12–13 November Visual Strength Grading: Softwoods – Refresher Princes Risborough

21–25 September Visual Strength Grading: Softwoods Princes Risborough

25 November Timber Frame Construction High Wycombe

22 September Offsite Expo Coventry

25 November Wood Awards ceremony Carpenters’ Hall, London

Find out more on the TRADA website 228 |

24–25 September Visual Strength Grading: Softwoods – Refresher Princes Risborough

www.trada.co.uk/events

TRADA Bookshop

Publications

The best books on timber design and construction are available from the TRADA bookshop bookshop.trada.co.uk

Off-site and industrialised timber construction: Delivering quality and efficiency 2nd edition TRADA’s latest book is a much-expanded second edition that examines the production concepts that can boost the efficiency of timber construction.

Manual for the design of timber building structures to Eurocode 5 2nd edition Now in its second edition it significantly updates the previous edition to include guidance on cross-laminated timber, panelised products, composites, fasteners and connection, fire design and durability.

Timber decking 3rd edition

Site check: The timber frame pocket guide

Eurocode 5 span tables 4th edition

This publication is the third edition of this definitive professional guide for decking designers and builders.

It includes a new set of span tables compliant with Eurocode 5 design code enabling specifiers to make the most efficient use of timber.

A concise summary of on-site best practice in timber frame construction. Checklists and illustrations of core activities enable you to verify that work is of the highest standard.

Researched and written by experts representing TRADA and the STA.

Frequently highlighted

by Building Control officers, this guide to common span tables (including trimmers) is referenced in building regulations (Approved Document A) and widely used by engineers, building designers and builders.

Structural timber elements: A prescheme design guide 2nd edition

National Structural Timber Specification V2.0

Timber frame construction: 5th edition

A game-changing publication for timber specifiers. A worked example with a project specification template is available for TRADA members.

The leading manual for professionals on conventional timber frame design and construction methods.

An at-a-glance reference guide to structural timber options for use during the pre-scheme design process.

For more information on publications and standards available, visit bookshop.trada.co.uk or contact the bookshop on: +44 (0)1494 569 602 or email bookshop@bmtrada.com

www.trada.co.uk

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T I M B E R C O N S U LTA N C Y FROM BM TR ADA

We carry out timber investigations, laboratory work and site inspections for a wide range of clients, including architects, engineers, building contractors, timber suppliers, heritage specialists, local authorities and organisations which maintain infrastructure, such as rail, highways, energy and communications.

BM TRADA’s team of timber technical experts offer a range of diverse activities, including those relating to: HERITAGE BUILDINGS

EXPERT WITNESS

BM TRADA’s timber condition surveys provide a non-destructive method of evaluating structural and decorative timber components in listed buildings. We use specialist survey equipment to assess the condition of the hidden sections of timbers embedded in walls. Our condition surveys also include moisture content surveys in order to assess the risk to timber presented by water penetration into buildings and are complemented with in-situ visual strength grading of timber, so we can advise customers on the strength of historic timbers in heritage buildings.

BM TRADA provides expert witnesses for legal disputes involving timber and wood products. Typical disputes question compliance with specifications, Standards or Building Regulations, performance in service, or trades descriptions. Our opinions are impartial and objective.

We can assist in settlement without proceeding to court.

We recommend that expert witness advice should be sought at the earliest opportunity.

BRIDGES AND STRUCTURES

BM TRADA undertakes surveys of structural timber in a wide range of external applications - such as bridges, piers and decks - where timber is exposed to a range of high risk environments. Our experts are trained to identify the agents of decay, evaluate the condition and strength of timber and to determine its future performance.

Our team of experts understand the balance between intervention and preservation of historic fabric and our non-destructive inspection techniques can minimise the disturbance of it. We provide the evidence and justification for targeted opening works in order to understand how the building was constructed, which materials were used and what condition they are in - key considerations for structural assessment.

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Timber 2020 Industry Yearbook

Our condition-based approach to timber inspection is an essential first step which determines defects such as decay and/or mechanical failure that could endanger safety and reliability of structures. Our expertise enables asset managers to co-ordinate both decisions and actions in relation to ongoing maintenance. This in turn can deliver an improved asset service life and a more efficient use of resources, along with more effective risk management which can extend the remaining service life of timber structures.

TIMBER FENCING AND BARRIER A SSESSMENTS

COOLING TOWERS

TIMBER FENCING AND A SSESSMENTS BM TRADA’s in-situ fence and BARRIER barrier surveys not only cover visible timber elements, but also use specialist techniques to assess underground embedded parts where the decay risk is far greater. We BM TRADA’s and barrier not ground. only cover identify wherein-situ decayfence is present, abovesurveys and below Wevisible provide timber on elements, but also useexpected specialistservice techniques advice the condition and life ofto allassess types of timber underground embedded where the decay and risk open-stock is far greater.

We barriers such as acoustic parts and anti-glare barriers fencing. identify where decay is present, above and below ground. We provide advice on the condition and expected service life of all types of timber barriers such acoustic and anti-glareSERVICES barriers and open-stock fencing.

TIMBER FRas AME INSPECTION

COOLING TOWERS Cooling towers are used in many manufacturing, processing, refinery and power generation facilities around the world. Hot – and sometimes chemical-laden – water coming into contact with braced timber Cooling towers aretowers used incan many processing, platforms in these leadmanufacturing, to surface degradation andrefinery decay. and power generation facilities around the world. Hot – and sometimes BM TRADA’s technical levels ofwith degradation, but also chemical-laden – waterexperts comingassess into contact braced timber provide facilities teams with details of surface structural stress levels timbers, platforms in these towers can lead to degradation andindecay. based on the residual timber section remaining. We produce reports BM TRADA’s technical experts assessthreshold levels of degradation, but also showing critical stress/cross section limits and predict decay provide facilities teams with details of structural stress levels timbers, levels. More importantly, we identify situations where timber in members based on thereplacement residual timber We produce reports need urgent as asection criticalremaining. safety measure. showing critical stress/cross section threshold limits and predict decay levels. More importantly, we identify situations where timber members need urgent replacement as a critical safety measure.

TIMBER AME INSPECTION SERVICES Our timberFR frame specialists can visit sites to inspect and report on the timber frame elements, to ensure that the building is being constructed in accordance with the specification and best practice. Services include Our timber frameframe specialists can visit sites tostability, inspect fire andresistance, report on the looking at timber detailing, structural timber frame elements, to ensure that the building is being constructed acoustic performance and thermal performance. in accordance with the specification and best practice. Services include Inspections can beframe carried out during the construction or on looking at timber detailing, structural stability, fireprocess, resistance, defects or as part of a remedial survey on completed or stalled projects, acoustic performance and thermal performance. giving you assurance that your timber frame building has been built Inspections carried out during the construction process, or on correctly andcan to be your requirements. defects or as part of a remedial survey on completed or stalled projects, giving you assurance that your timber frame building has been built correctly and to your requirements.

ABOUT BM TR ADA

ABOUT BM TRofADA BM TRADA, part the Element Group, specializes in providing a comprehensive range of independent testing, inspection, certification, technical and training services. We help organizations to demonstrate their business and product credentials and to improve performance and compliance.

BM TRADA, part of the Element Group, specializes in providing a comprehensive range of independent testing, inspection, certification, We exist to help our customers to make certain that the systems, supply chain and product certification schemes they operate are technical and training services. We help organizations to management demonstrate their business and product credentials and to improve performance and compliant and fit for purpose. compliance.

We exist to help our customers to make certain that the management systems, supply chain and product certification schemes they operate are compliant and fit for purpose.

www.trada.co.uk

www.bmtrada.com www.bmtrada.com

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TRADA Addresses & websites

Addresses & websites Timber and related organisations American Hardwood Export Council – AHEC Unit 20.1, 20–22 Vestry Street, London N1 7RE t 020 7626 4111 e europe@americanhardwood.org www.americanhardwood.org

American Softwoods – Representing the Southern Forest Products Association, Softwood Export Council and APA – The Engineered Wood Association 33 Rosebery Road, London N10 2LE t 020 8444 0885

www.americansoftwoods.com Architectural and Specialist Door Manufacturers Association (ASDMA) Burnside House, 3 Coates Lane, High Wycombe, Bucks HP13 5EY t 01494 447370

www.asdma.com British Woodworking Federation (BWF) The Building Centre, 26 Store Street, London WC1E 7BT t 020 7637 2646 e bwf@bwf.org.uk

www.bwf.org.uk Builders Merchants Federation (BMF) 1180 Elliott Court, Coventry Business Park, Herald Avenue, Coventry CV5 6UB t 02476 854980 e info@bmf.org.uk

www.bmf.org.uk The Building Centre 26 Store Street, London WC1E 7BT t 020 7692 4000 e office@buildingcentre.co.uk

www.buildingcentre.co.uk

Building Research Establishment (BRE) Bucknalls Lane, Watford, Hertfordshire WD25 9XX t 0333 321 8811 e enquiries@bregroup.com

www.bregroup.com Canada Wood UK PO Box 1, Farnborough, Hampshire GU14 6WE t 01252 522545 e office@canadawooduk.org

www.canadawooduk.org The Carpenters’ Company Carpenters’ Hall, Throgmorton Avenue, London EC2N 2JJ t 020 7588 7001 e info@carpentersco.com

www.carpentersco.com Confederation of Forest Industries (UK) Ltd 59 George Street, Edinburgh EH2 2JG t 0131 240 1410 e info@cti-timber.org

www.confor.org.uk Confederation of Timber Industries The Building Centre, 26 Store Street, London WC1E 7BT t 020 7291 5370 e info@cti-timber.org

www.cti-timber.org BM TRADA Chiltern House, Stocking Lane, Hughenden Valley, High Wycombe, Buckinghamshire HP14 4ND t 01494 569966 e timber@bmtrada.com

www.bmtrada.com Furniture Industry Research Association (FIRA) Maxwell Road, Stevenage, Hertfordshire SG1 2EW t 01438 777700 e info@fira.co.uk

www.fira.co.uk Forestry Commission 620 Bristol Business Park, Coldharbour Lane, Bristol BS16 1EJ t 0300 067 4000 e nationalenquiries@forestrycommission.gov.uk

www.gov.uk/government/organisations/forestry-commission Forest Stewardship Council® UK (FSC® UK) The Billiard Room, Town Hall, Great Oak St, Llanidloes, Powys SY18 6BN t 01686 413916 e info@fsc-uk.org

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TRADA Addresses & websites

Ghana Forestry Commission (Timber Industry Development Division)

Timber Packaging & Pallet Confederation (TIMCON)

Unit 4, Granard Business Centre, Bunns Lane, Mill Hill, London NW7 2DZ t 020 8906 9560 e tiddlondon@ghanatimber.co.uk

Unit Q, Troon Way Business Centre, Humberstone Lane, Leicester LE4 9HA t 0116 274 7357 e info@timcon.org

www.fcghana.org

www.timcon.org

Grown in Britain (GiB)

Timber Research and Development Association (TRADA)

19 Common Road, Hanham, Bristol BS15 3LL t 07584 169094 e enquires@growninbritain.org

Chiltern House, Stocking Lane, Hughenden Valley, High Wycombe, Buckinghamshire HP14 4ND t 01494 569603 e membership@trada.co.uk

www.growninbritain.org Institute of Carpenters 32 High Street, Wendover, Bucks HP22 6EA t 0844 879 7696 e info@instituteofcarpenters.com

www.instituteofcarpenters.com Master Carvers Association e info@mastercarvers.co.uk www.mastercarvers.co.uk Programme for the Endorsement of Forest Certification (PEFC UK) Sheffield Technology Parks, Cooper Buildings, Arundel Street, Sheffield S1 2NS t 0114 307 2334 e info@pefc.co.uk

www.pefc.co.uk Property Care Association

www.trada.co.uk Timber Trade Federation (TTF) The Building Centre, 26 Store Street, London WC1E 7BT t 020 3205 0067 e ttf@ttf.co.uk

www.ttf.co.uk Trussed Rafter Association (TRA) The Building Centre, 26 Store Street, London WC1E 7BT t 020 3205 0032 e info@tra.org.uk

www.tra.org.uk Wood Panel Industries Federation (WPIF) Autumn Park Business Centre, Dysart Road, Grantham, Lincolnshire NG31 7EU t 01476 512381 e enquiries@wpif.org.uk

www.wpif.org.uk

11 Ramsay Court, Kingfisher Way, Hinchingbrooke Business Park, Huntingdon, Cambridgeshire PE29 6FY t 01480 400000 e pca@property-care.org

Woodworking Machinery Suppliers Association (WMSA)

www.property-care.org

www.wmsa.org.uk

Structural Timber Association

Wood Protection Association

The e-Centre, Cooperage Way Business Village, Alloa FK10 3LY t 01259 272140 e office@structuraltimber.co.uk

5C Flemming Court, Castleford, West Yorkshire WF10 5HW t 01977 558274 e info@wood-protection.org

www.structuraltimber.co.uk

www.wood-protection.org

Timber Decking & Cladding Association

Wood Technology Society – A Division of The Institute of Materials, Minerals and Mining (IOM3)

5C Flemming Court, Castleford, West Yorkshire WF10 5HW t 01977 558147 e info@tdca.org.uk

www.tda.org.uk

www.trada.co.uk

20 Poplar Road, Shalford, Guildford, Surrey GU4 8DJ t 07786 963055 e enquiries@wmsa.org.uk

297 Euston Road, London NW1 3AD t 020 7451 7300

www.iom3.org/wood-technology

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The most comprehensive online directory of timber products and services Hundreds of design guide publications Help with TRADA’s National Structural Timber Specification (NSTS)

A dedicated helpline and team of experts

Sales enquiries from the website

Find out more about the benefits of TRADA membership: t: 01494 569603 www.trada.co.uk

Join Now When it comes to timber we are the experts in every branch

MEMBERSHIP I INFORMATION I BOOKSHOP I SOFTWARE

TRADA members How to use this directory The directory has two sections:

Alphabetical list of TRADA members All member companies are listed in alphabetical order with details of their address, phone, fax and nature of business.

When searching for a particular company please remember that they may have been listed under a forename or with the prefix ‘The’.e.g. The John Taylor Partnership may be listed under ‘The’, ‘John’ or ‘Taylor’ depending on company personal preference or the format in which information was presented to TRADA. The alpha-numeric codes refer to categories in the Buyers’ Guide.

Buyers’ guide

Member companies are included under their principal business activities in up to five Buyers’ guide categories. An index to the categories can be found on page 272. Company contact details are included in the Alphabetical list of TRADA members.

www.trada.co.uk

TRADA MEMBERS AND BUYERS’ GUIDE CURRENT TO 01 JANUARY 2020 MORE DETAILED INFORMATION IS HELD IN THE DIRECTORY ON THE TRADA WEBSITE WWW.TRADA.CO.UK

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TRADA Members

0-9

16a Architecture

The Studio, 16A Fore St, Topsham, Devon EX3 0HF e: vaughn@16aarchitecture.com w: www.16aarchitecture.com t: 01392 874106 Ar2500

21st Century Carpentry Building Services Ltd 49 Elvin Crescent, Rottingdean, East Sussex BN2 7FF e: loic.bitout@ntlworld.com w: sussextimberframing.com t: 07941 019484 Bu3000, Cj1000, Ti1500

3dr Architects Ltd

15 Emmbrook Road, Wokingham, Berkshire RG41 1HE e: jon.hughes@3drarchitects.co.uk w: www.3drarchitects.co.uk t: 01189 788531 Ar2000

4 Seasons Full Conversions Ltd 367 Bryn Road, Ashton-in-Makerfield, Wigan, Lancashire WN4 8BS e: danny@4seasonsconversions.com w: www.4seasonsconversions.com t: 01942 356112 Bu3000

A

A & C Joinery

Rose Mills Industrial Estate, Hort Bridge, Ilminster, Somerset TA19 9PS e: chris@acjoinery.co.uk w: www.acjoinery.co.uk t: 01460 55222 Jo4000

A & K Architectural Services

Office B108 Victoria Beacon Place, Victoria, Cornwall PL26 8LG e: enquiries@akarchitecturalservices.co.uk w: www.akarchitecturalservices.co.uk t: 01208 220214 Ar2500, Co4000

A C Timber Solutions Ltd

7 Lancaster Way Business Park, Witchford, Ely, Cambridgeshire CB6 3NW e: info@actimber.co.uk w: www.actimber.co.uk t: 01353 666843 f: 01353 658691 Cd1000, Fl4000, Ha7000, Mo4500, Ti7600

A Cromarty Engineering Ltd

Klahanie, Springfield Drive, Kirkwall, Orkney KW15 1XU e: andrew@ac-engineering.scot t: 07748 183633

A J Laminated Beams Ltd

Red Fox Barn, Cross Green, Cockfield, Bury St. Edmunds, Suffolk IP30 0LG e: info@ajlaminatedbeams.co.uk w: www.ajlaminatedbeams.co.uk t: 01284 828184 f: 01284 828306 Bu6800, Gl2000, Oa1000, St9000, Ti2500

A L Project Services

17 Melrose Avenue, Paisley, Renfrewshire PA2 9JA e: alex.andrew@ntlworld.com t: 01505 816486 f: 01505 359701 Co8800, En2000

A R Morris Building & Joinery Contractor Ltd Westfield, Clun Road, Craven Arms, Shropshire SY7 9QW e: morrisbuilding@btinternet.com t: 07950 319309 Bu3000

A T K Partnership Ltd

33 Union Street, Greenock, Renfrewshire PA16 8DN e: mail@atk-partnership.co.uk w: www.atk-partnership.co.uk t: 01475 787797 f: 01475 727990 Co4000, Co9100, Co9200, En2000, Ti1200

AWW

Rivergate House, 70 Redcliff Street, Bristol, Avon BS1 6LS e: richard.francis@aww-uk.com w: www.aww-uk.com t: 0117 923 2535 f: 0117 942 6689 Ar2000, Ar2500

A Winterbotham Ltd

Bayfields, Bayfield Gardens, Dymock, Gloucestershire GL18 2BH e: andrew@awinterbotham.co.uk w: www.awinterbotham.co.uk t: 01531 890734 f: 01531 890734 En2000

A&D Design

5 Wildmoor Lane, Catshill, Bromsgrove, Worcestershire B61 0NT e: ebbutt@mac.com w: www.a-and-d-design.co.uk t: 01527 889347

A.C. Roof Trusses Ltd

Severn Farm Industrial Estate, Welshpool, Powys SY21 7DF e: info@acrooftrusses.co.uk w: www.acrooftrusses.co.uk t: 01938 554881 f: 01938 556265 Ti2000, Tr4000

A.D.S. Ltd

80 Redehall Road, Smallfield, Surrey RH6 9RS e: info@adsconsult.co.uk t: 07876 338893

Aaron Evans Architects Ltd

3 Gay Street, Bath, Bath & North East Somerset BA1 2PH e: angelao@aearchitects.co.uk w: www.aaronevans.com t: 01225 466234 f: 01225 444364 Ar2000

Abbey Woods

Unit 16/17, Westlink Business Park, Old Mallow Road, Cork, Co. Cork T23 XW31, Republic of Ireland e: sales@abbeywoods.ie w: www.abbeywoods.ie t: 00 353 21 421 1788 Cd1000, De2000, Mo0500, Ti7600, Ti7700

Abbey Woods

Unit 143, Grange Drive, Baldoyle Ind Estate, Dublin 13, D13 W9V2, Republic of Ireland e: sales@abbeywoods.ie w: www.abbeywoods.ie t: 01 353 839 3435 Cd1000, De2000, Mo0500, Ti7600, Ti7700

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Abbeywood Estate

Abbeywood, Abbey Lane, Delamere, Cheshire CW8 2HW e: harry@abbeywood.co.uk t: 01606 888116 f: 01606 889477

ABIR Architects

1 Beta House, St Johns Road, Hove, East Sussex BN3 2FX e: studio@abirarchitects.co.uk w: www.abirarchitects.co.uk t: 01273 724384 Ar2000, Co4000

Absolute Consulting Engineers Ltd Lansdowne House, Penhill Road, Great Ellingham, Norfolk NR17 1LS e: absoluteeng@aol.com t: 01953 454641 f: 01953 453310 En2000

Acanthus Clews Architects

57 Hightown Road, Banbury, Oxfordshire OX16 9BE e: architects@acanthusclews.co.uk w: www.acanthusclews.co.uk t: 01295 702600 Ar2000, Co5000, Co8800, Co9300, He1000

Accoya by Accsys Technologies Brettenham House, 19 Lancaster Place, London WC2E 7EN e: justin.peckham@accsysplc.com w: www.accoya.com t: 020 7421 4300 Mo0500

Acer Building Services Ltd

Bankside, Fermor Road, Crowborough, East Sussex TN6 3BN e: karl@acerbuildingservices.co.uk w: www.acerbuildingservices.co.uk t: 01892 668149 Bu3000

Ackroyd Lowrie

23 Vyner Street, London E2 9DG e: sanjeevan@ackroydlowrie.com w: ackroydlowrie.com t: 020 3770 9780

Adam Power Associates

Church Farmhouse, 51 Crown Street, Banham, Norwich, Norfolk NR16 2HW e: adam@adampower.co.uk w: www.adampower.co.uk t: 01953 887539 f: 01953 887479 En2000

Adams & Sutherland

1k Highgate Business Centre, 33 Greenwood Place, London NW5 1LB e: info@adams-sutherland.co.uk w: www.adams-sutherland.co.uk t: 020 7267 1747 f: 020 7482 2359 Ar2000

Adams Joinery Ltd

Unit 2, 30 Progress Road, Leigh on Sea, Essex SS9 5LE e: info@adamsjoinery.co.uk w: www.adamsjoinery.co.uk t: 01702 512311 f: 01702 512411 Do2500, Jo1000, Jo4000, Jo5000, Wi2000

Addison Conservation + Design

Bush House, Room F4, Edinburgh Technopole, Milton Bridge, Penicuik, Midlothian EH26 0BB e: krystyna@addisonconservationanddesign.com w: www.addisonconservationanddesign.com t: 0131 445 8624 f: 0131 445 8625

Addison Construction Ltd

7 St James Avenue, Ongar, Essex CM5 9EL e: garyaddison1@waitrose.com t: 01277 366431 Bu3000

ADEPT Consulting (UK) Ltd Unit 1a, Beaufort Way, Chepstow, Monmouthshire NP16 5UH e: info@adeptco.co.uk w: www.adeptco.co.uk t: 01291 449955 Co9100, Co9200, En2000, Ti1200

Advanced Housing Systems Ltd

Unit 3, Butterleigh Sawmill, Butterleigh, Cullompton, Devon EX15 1PP e: sales@advancedhousingsystems.co.uk w: www.advancedhousingsystems.co.uk t: 020 7193 1461 Ho3000, St8500, Ti1200, Ti1500, Ti2000

Advanced Technical Panels

Topcliffe Close, Capitol Park East, Tingley, Leeds, West Yorkshire WF3 1DR e: atp@lathams.co.uk w: www.advancedtechnicalpanels.co.uk t: 0113 387 0850 Pa7500, Pa8200, Pa8500, Pl1000

AECOM

1 Tanfield, Edinburgh EH3 5DA t: 0131 301 8600

AECOM

6 - 8 Greencoat Place, London SW1P 1PL t: 020 7821 4185

AECOM

12 Regan Way, Chetwynd Business Park, Chilwell, Nottingham NG9 6RZ t: 0115 907 7000

AECOM

14 Queen Victoria Road, Coventry CV1 3PJ t: 024 7625 3300

AECOM

24 Linenhall Street, Belfast, County Antrim BT2 8BG t: 028 9060 7200

AECOM

225 Bath Street, Glasgow G2 4GZ t: 0141 222 6400

AECOM

3rd Floor, Portwall Place, Portwall Lane, Bristol BS1 6NA t: 0117 901 7000

AECOM

3rd Floor, 8 Princes Parade, Princes Dock, Liverpool, Merseyside L3 1QH t: 0151 331 8900

AECOM

5th Floor, 2 City Walk, Leeds LS11 9AR t: 0113 391 6800

AECOM

AECOM House, 63-77 Victoria Street, St Albans, Hertfordshire AL1 3ER e: enquiries.europe@aecom.com w: www.aecom.com t: 01727 535000 f: 01727 535099 Co4000, Co5000, Co9200, Co9100, En2000

AECOM

Aldgate Tower, 2 Leman Street, London E1 8FA t: 020 7061 7000

AECOM

Beaufort House, 94/96 Newhall Street, Birmingham B3 1PB t: 0121 262 1900

www.trada.co.uk

TRADA Members

AECOM

Beechill House, Beechill Road, Belfast, County Antrim BT8 7RP t: 028 9070 5111 f: 028 9079 5651

AECOM

Belvedere House, Pynes Hill, Exeter, Devon EX2 5WS t: 01392 663200

AED

Alcock Lees

AFEC Ltd

Allen Gordon LLP

23/3 Mitchell Street, Edinburgh, City of Edinburgh EH6 7BD e: design@aed.eu.com w: www.aed.eu.com t: 0131 225 5116 Co9100, Co9200, En2000, Te4000, Ti1200

Churchill House, Churchill Way, Cardiff CF10 2HH t: 029 2035 3400

Unit B6, Swords Enterprise Park, Feltrim Road, Drinan, Swords, Co. Dublin K67Y X37, Republic of Ireland e: ana.demark@afec.ie w: www.afec.ie t: 00 353 8724 11242

AECOM

Affinity Architects

AECOM

First Floor, 499 Union Street, Aberdeen AB11 6DB t: 01224 597450

AECOM

First Floor, One Trinity Gardens, Quayside, Newcastle upon Tyne NE1 2HF t: 0191 224 6500

AECOM

First Floor, Stonecross, Trumpington, High Street, Cambridge CB2 9SU t: 01223 551800

AECOM

Ground Floor, Grand Canal House, Upper Grand Canal Street, Dublin, Co. Fingal Dublin 4, Republic of Ireland t: 00 353 1 238 3100

AECOM

Lynnfield House, Church Street, Altrincham, Cheshire WA14 4DZ t: 0161 927 8200

AECOM

Midpoint, Alencon Link, Basingstoke, Hampshire RG21 7PP w: www.aecom.com t: 01256 310200

AECOM

Plumer House, Third Floor, East Wing, Tailyour Road, Plymouth PL6 5DH w: www.aecom.com t: 01752 676700

AECOM

Saxon House, 27 Duke Street, Chelmsford, Essex CM1 1HT t: 01245 771200

AECOM

St Christopher House, George Cayley Drive, York, North Yorkshire YO30 4XE t: 01904 694400

AECOM

Stable Block, Bradbourne House, New Road, East Malling, Kent ME19 6DZ t: 01723 221340

AECOM

Sunley House, 4 Bedford Park, Croydon CR0 2AP t: 020 8639 3500

56 North Street, Wilton, Salisbury SP2 0HH e: stuart@affinityarchitects.co.uk t: 01722 741683

Ahead Start Consulting

White House Farm, Warden Road, Eastchurch, Sheppey ME12 4EN e: intouch@aheadstartconsulting.com w: aheadstartconsulting.co.uk t: 01795 880077

Aidan O'Connell & Associates Ltd

Lismard House, Timahoe Road, Portlaoise, Co. Laois, Republic of Ireland e: info@aoconnellassc.com w: www.aoconnellassc.com t: 00 353 57 866 3244 En2000

Aitken & Howard Ltd

Milton Sawmills, Auchincarroch Road, Jamestown, Alexandria, Dumbartonshire G83 9EY e: sales@gilmouraitken.com w: www.aitkenhoward.co.uk t: 01389 762333 Mo4500, Sa7000, Ti7500, Ti7600, Ti7700

AJR Design Solutions Ltd

Office 2, Kembrey House, 5 Worcester Road, Bromsgrove, Worcestershire B61 7DL e: alex@ajrdesignsolutions.co.uk w: www.ajrdesignsolutions.co.uk t: 07403 571087 En2000, Ti1200

AKT II

White Collar Factory, 1 Old Street Yard, London EC1Y 8AF e: wys@akt-uk.com w: www.akt-uk.com t: 020 7250 7777 f: 020 7250 7555 En2000

AkzoNobel Industrial Coatings Ltd/ Sikkens Joinery

Unit 04a Mercer Way, Shadsworth Business Park, Blackburn, Lancashire BB1 2QZ e: sales.shadworth@akzonobel.com w: www.sikkens-wood-coatings.co.uk t: 01254 687950 f: 01254 687960 Ad1000, Co1500, La1000, Pa3000, Va1000

al3d

The Johnson Building, 77 Hatton Garden, London EC1N 8JS t: 020 7645 2000

Unit 1, The Hall, High Street, Tetsworth, Thame, Oxfordshire OX9 7AB e: shirley@al3d.co.uk t: 07889 646450 Ar2000

AECOM Professional Services LLP

Alan Baxter Partnership

AECOM

Aldgate Tower, 2 Leman Street, London E1 8FA e: ann.freeston@aecom.com w: www.aecom.com t: 020 7061 7357

www.trada.co.uk

The Clock Building, Pympes Court, Busbridge Lane, Loose, Maidstone, Kent ME15 0HZ e: mail@abpengineers.co.uk w: www.abpengineers.co.uk t: 01622 744263 f: 01622 749270 En2000

Jonathan Scott Hall, Thorpe Road, Norwich, Norfolk NR1 1UH e: mail@alcock-lees.co.uk w: www.alcock-lees.co.uk t: 01603 764448 En2000 Suite 3, Saltire House, Whitefriars Business Park, Perth, Tayside PH2 0PA e: perth@allengordon.co.uk w: www.allengordon.co.uk t: 01738 639881 f: 01738 634761 Co9100, Co9200, En2000

Allford Hall Monaghan Morris Morelands, 5-23 Old Street, London EC1V 9HL e: info@ahmm.co.uk w: www.ahmm.co.uk t: 020 7251 5261 f: 020 7251 5123 Ar2000

Allies and Morrison

85 Southwark Street, London SE1 0HX e: librarian@alliesandmorrison.co.uk w: www.alliesandmorrison.com t: 020 7921 0100 f: 020 7921 0101 Ar2000

Allison Pike Partnership

7 Buxton Road West, Disley, Stockport, Cheshire SK12 2AE e: rdm@allisonpike.com w: www.allisonpike.com t: 01663 763000 Ar2000, Ar2500, Co4000

Allwood Timber Construction Talewater Works, Talaton, Exeter, Devon EX5 2RT e: frames@allwoodtimber.co.uk w: www.allwoodtimber.co.uk t: 01404 850977 f: 01404 850946 Bu6800, Ti2000, Ti2500, Ti2700

Alsford Timber

14 Sheen Lane, Mortlake, London SW14 8LW e: mortlake@alsfordtimber.com w: www.alsfordtimber.com t: 020 8876 2257 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

52 The Ridge, Hastings, East Sussex TN34 2AB e: hastings@alsfordtimber.com w: www.alsfordtimber.com t: 01424 443366 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

61 Portsmouth Road, Cobham, Surrey KT11 1JQ e: cobham@alsfordtimber.com w: www.alsfordtimber.com t: 01932 863468 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

63-69 Heath Road, Twickenham, Middlesex TW1 4AT e: twickenham@alsfordtimber.com w: www.alsfordtimber.com t: 020 8892 2868 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

80a Preston Road, Brighton, East Sussex BN1 6AE e: brighton@alsfordtimber.com w: www.alsfordtimber.com t: 01273 554888 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

109-113 Kingston Road, Leatherhead KT22 7SU e: leatherhead@alsfordtimber.com w: www.alsfordtimber.com t: 01372 376138 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

118 Park View Road, Welling, Kent DA16 1SJ e: welling@alsfordtimber.com w: www.alsfordtimber.com t: 020 8301 1199 f: 020 8303 7687 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

141 South Undercliff, Rye, East Sussex TN31 7HW e: rye@alsfordtimber.com w: www.alsfordtimber.com t: 01797 222 397 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

Administration & Support Centre, Ness Road, Erith, Kent DA8 2LD e: enquiries@alsfordtimber.com w: www.alsfordtimber.com t: 01322 333088 f: 01322 359517 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

Fencing Direct, GATE 1, Ness Road, Erith, Kent DA8 2LD e: fencing@alsfordtimber.com w: www.alsfordtimber.com t: 01322 341198 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

King Street, Worthing, West Sussex BN14 7BW e: worthing@alsfordtimber.com w: www.alsfordtimber.com t: 01903 200154 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

Ruxley Roundabout A20, Ruxley, Kent DA14 5AD e: ruxley@alsfordtimber.com w: www.alsfordtimber.com t: 020 8300 4375 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

St Mark's Hill, Surbiton, Surrey KT6 4LJ e: surbiton@alsfordtimber.com w: www.alsfordtimber.com t: 020 8399 4234 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

Unit 2 Bellbrook Industrial Estate, Bell Lane, Uckfield, East Sussex TN22 1QL e: uckfield@alsfordtimber.com w: www.alsfordtimber.com t: 01825 762888 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

Unit 5, Tannery Close, Croydon Road Industrial Estate, Elmers End, Beckenham, Kent BR3 4BY e: beckenham@alsfordtimber.com w: www.alsfordtimber.com t: 020 8655 3939 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber Ltd

Unit 15A, Eurolink Industrial Estate, Upper Field Road, Sittingbourne, Kent ME10 3UP e: sittingbourne@alsfordtimber.com w: www.alsfordtimber.com t: 01795 899 910

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TRADA Members

Alsford Timber

Andrew Baxter Ltd

Ann Nisbet Ltd

Arbonis

Alsford Timber

Andrew Davie Timber Frame Homes

Ansell & Bailey Ltd Chartered Architects

Arbor Architects

Units 1 & 2, Deacon Trading Estate, Vale Road, Tonbridge, Kent TN9 1SU e: tonbridge@alsfordtimber.com w: www.alsfordtimber.com t: 01732 770303 De2000, Do2000, Md3000, Pa7500, Ti7500 Units 1 & 2, Diplocks Way, Hailsham, East Sussex BN27 3JF e: hailsham@alsfordtimber.com w: www.alsfordtimber.com t: 01323 843567 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

Units 5 & 6, Nightingale Road, Horsham, West Sussex RH12 2NW e: horsham@alsfordtimber.com w: www.alsfordtimber.com t: 01403 272872 De2000, Do2000, Md3000, Pa7500, Ti7500

Alsford Timber

Units 19 & 20 Birch Road, Eastbourne, East Sussex BN23 6PD e: eastbourne@alsfordtimber.com w: www.alsfordtimber.com t: 01323 416000 De2000, Do2000, Md3000, Pa7500, Ti7500

Altham Oak Bespoke Structures The Paddock, Skipton Road, Foulridge, Lancashire BB8 7NP e: info@oak-beams.co.uk w: www.oak-beams.co.uk t: 01282 543634 Jo4000

Altripan UK Ltd

Gloucester House, 35 Old Gloucester Road, Ross-on-Wye, Herefordshire HR9 5PB e: sales@altripanuk.com w: www.altripanuk.com t: 0845 2799992 f: 0845 2799991 Md3000, Or3000, Pa7000, Pa7500, Pl1000

American Hardwood Export Council Unit 20.1, 20-22 Vestry Street, London N1 7RE e: europe@americanhardwood.org w: www.americanhardwood.org t: 020 7626 4111 f: 020 7626 4222 As1000

AMLI Design

Warerview House, 160 Birstall Road, Birstall, Leicester, Leicestershire LE4 4DF e: di@amlidesign.co.uk w: www.amlidesign.co.uk t: 07974 807111

Amspec Ltd

Kilshaw Street, Lamberhead Ind Estate, Pemberton, Wigan, Lancashire WN5 8EA e: enquiries@amspec.co.uk w: amspec.co.uk t: 01942 621342

Anderson Associates Chartered Architect Ltd

Harbour View, Cromwell St Quay, Stornoway, Isle of Lewis HS1 2DF e: architect@andersonassociatesltd.com w: www.andersonassociatesltd.com t: 01851 701500 Ar2000

Anderson Bell & Christie

382 Great Western Road, Glasgow, Strathclyde G4 9HT e: gen@andersonbellchristie.com w: www.andersonbellchristie.com t: 0141 339 1515 f: 0141 339 0505 Ar2000

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The Woodlands, Edgehill, Banbury, Oxfordshire OX15 6DJ e: dan.baxter@btconnect.com t: 01295 670485 f: 01295 670605 Co4000, Co8700, Co9200, En2000 Eastfield Business Park, Newark Road South, Glenrothes, Fife KY7 4NS e: enquiries@daviehomes.co w: www.daviehomes.co t: 01592 774444 f: 01592 631631 Bu3000, Ho3000, Ti2000

Andrew Firebrace Partnership

Stable Barn, Park End, Swaffham Bulbeck, Cambridge, Cambridgeshire CB25 ONA e: info@afpconsult.co.uk w: www.afpconsult.co.uk t: 01223 811572 f: 01223 812719 Co7000, Co9100, En2000

Andrew Howard & Partners

15 Diamond Court, Opal Drive, Fox Milne, Milton Keynes, Buckinghamshire MK15 0DU e: ahp@ah-p.co.uk w: www.andrewhowardandpartners.co.uk t: 01908 690230 f: 01908 241391 Ar2500, Co4000, En2000

Andrew Page Oak

North Barn, Bakers Lane, Brightwell-cum-Sotwell, Wallingford, Oxfordshire OX10 0PU e: info@andrewpageoak.co.uk w: www.andrewpageoak.co.uk t: 0333 666 9993 Bu3000, Fu3000, Ti1200, Ti1500

Andrew Petty

7 Fennel Close, Rochester ME1 1LW e: office@ap-a.co.uk w: www.ap-a.co.uk t: 01634 304447

Andrew Waring Associates Ltd

The Old Brewery House, Portersbridge Street, Romsey, Hampshire SO51 8DJ e: mail@awaromsey.co.uk w: www.awaromsey.co.uk t: 01794 524447 f: 01794 515353 Co9100, Co9200, En2000

Andrews Associates

Andrews House, 128-130 Mitcham Road, Croydon, Surrey CR0 3RJ e: andrews@engineers.co.uk t: 020 8680 5300 f: 020 8239 7300 En2000

Anglia Ruskin University

Bishop Hall Lane, Chelmsford, Essex CM1 1SQ e: maria.vogiatzaki@anglia.ac.uk w: www.anglia.ac.uk t: 01245 683663 Ed4000

Anglian Home Surveyors Ltd

11 Risbridge Drive, Kedington, Haverhill, Suffolk CB9 7ZE e: enquiries@anglianhomesurveyors.com w: www.anglianhomesurveyors.com t: 01440 784063

Angus and Mack Ltd

2 Airfield Workshop, Cousland, Dalkieth, Edinburgh EH22 2PE e: info@angusandmack.com w: angusandmack.com t: 01875 321123 Jo4000

996 Pollokshaws Road, Studio 4-2, Glasgow, North Lanarkshire G41 2HA e: ann@annnisbet.com w: www.annnisbet.com t: 01416 320351 Ar2000

17 Bowling Green Lane, Clerkenwell, London EC1R 0QB e: ayork@ansellandbailey.com w: www.anb.co.uk t: 020 7387 0141 f: 020 7387 7460 Ar2000, Ar2500

Anson Timberworks Ltd

Integ Yard, Woodlands Business Park, Rougham Industrial Estate, Bury St. Edmunds, Suffolk IP30 9ND e: info@ansontimberworks.co.uk w: www.ansontimberworks.co.uk t: 01359 271392 f: 01359 271546 Ti2000

Anthony Davies Associates Ltd

19 Quay Level Offices, St Peters Wharf, Newcastle upon Tyne NE6 1TZ e: info@anthonydavies.com w: www.anthonydavies.com t: 0191 276 5209 En2000

Anthony Fisher Associates

27 Claverton Road West, Saltford, Bristol, Avon BS31 3AL e: info@anthony-fisher-associates.co.uk w: www.anthony-fisher-associates.co.uk t: 01225 872976 f: 01225 872976 En2000

Anthony Swaine Architecture The Bastion Tower, 16 Pound Lane, Canterbury, Kent CT1 2BZ e: info@anthonyswaine.co.uk w: www.anthonyswaine.co.uk t: 01227 462680 f: 01227 472743 Ar2000, He1000

Apex Timber Frames Ltd

Douglas House, Higher Brynn Ind Estate, Victoria, St Austell, Cornwall PL26 8LH e: design@apextimberframes.co.uk w: design@apextimberframes.co.uk t: 01726 891425 Ar2500, Co9100, Ti1200, Ti1500, Ti2000

Appledown Marine

6 Appledown Rise, Coulsdon, Surrey CR5 2DX e: david.viner@appledownmarine.com w: www.appledownmarine.com t: 07557 362515 Su1000

apt. Design Ltd

Anson House, Compass Point Business Park, Northampton Road, Market Harborough, Leicestershire LE16 9HW e: mail@apt-design.co.uk w: www.apt-design.co.uk t: 01858 46942

Arbonis

34 Rue Antoine Primat, Villeurbanne 69603, France e: cmelia@arbonis.com w: www.arbonis.com t: 00 33 385 24 27 37

RN79, Verosvres 71220, France e: contact.arbonis@arbonis.com w: www.arbonis.com t: 00 33 385 24 81 22 f: 00 33 385 24 84 50 Bu3000, Br2000, Bu8000, Gl1000, Ti2000 4 Grenfell Road, Hereford HR1 2QR e: info@arborarchitects.co.uk w: arborarchitects.co.uk Ar2000, Co4000, Co7250

Arboreal Architecture Ltd

St Margaret's House, 21 Old Ford Road, London E2 9PL e: harry@arborealarchitecture.com w: www.arborealarchitecture.com t: 020 8980 5066 Ar2000

ARC Engineers Ltd

3 Candman Court, Leeds, West Yorkshire LS27 0RX e: design@arc-engineers.co.uk w: www.arc-engineers.co.uk t: 0113 253 3904 f: 0871 714 6751 Co9100, En2000, Ti1200

Archibald Shaw LLP

4 Toomers Wharf, Canal Walk, Newbury, Berkshire RG14 1DY e: newbury@archibaldshaw.co.uk w: www.archibaldshaw.co.uk t: 01635 47369 f: 01635 521956 Co9100, En2000

Archibald Shaw LLP

One Little London, Chichester, West Sussex PO19 1PP e: mail@archibaldshaw.co.uk w: www.archibaldshaw.co.uk t: 01243 786471 f: 01243 779346 Co9100, Co9200, En2000, Ti1200

Architects Plus (UK) Ltd

Victoria Galleries, Victoria Viaduct, Carlisle, Cumbria CA3 8AN e: ap@architectsplus.co.uk w: www.architectsplus.co.uk t: 01228 515144 Ar2000

Architectural & Construction Services

Allendale Road Offices, Byker, Newcastle upon Tyne NE6 2SZ e: wayne.a.phillips@newcastle.gov.uk w: www.newcastle.gov.uk t: 0191 278 3259 Lo1000

Architectural Thread

Heatherton Park Studios, Bradford on Tone, Taunton, Somerset TA4 1EU e: jen@a-thread.co.uk w: a-thread.co.uk t: 01823 461361

Architecture One Eight

18 Grange Avenue, Harrogate, North Yorkshire HG1 2AG e: haydn@architecture18.co.uk t: 01423 548391 Ar2000

Architecture PLB

50 Southwark Street, London SE1 1UN e: mail@architectureplb.com w: www.architectureplb.com t: 020 7940 1888 Ar2000

www.trada.co.uk

TRADA Members

Architecture PLB

St Thomas Street, Winchester, Hampshire SO23 9HD e: mail@architectureplb.com w: www.architectureplb.com t: 01962 842200 f: 01962 810962 Ar2000

Architype Ltd

Unity Wharf, 13 Mill Street, London SE1 2BH e: london@architype.co.uk w: www.architype.co.uk t: 020 7403 2889 f: 020 7407 5283 Ar2000

Ardern Hodges Ltd

Unit A, 449 Holloway Road, London N7 6LJ e: info@ardernhodges.co.uk w: www.ardernhodges.co.uk t: 020 7263 3882 f: 020 7263 2333 Co9100, Co9200

Ardmore Construction Ltd 6 Wharf Studio, 28 Wharf Road, London N1 7GR e: info@ardmoregroup.co.uk w: www.ardmoregroup.co.uk t: 020 8344 0300 f: 020 8344 0377

Arnold Laver

Arnold Laver

Crowle Street, Hull, North Humberside HU9 1RH e: hull@laver.co.uk w: www.laver.co.uk t: 01482 761220 Jo2000, La4000, Pa7500, Pl1000, Ti7500

Arnold Laver

Dudley Road, Oldbury, West Midlands B69 3DA e: birmingham@laver.co.uk w: www.laver.co.uk t: 0121 552 7788 Jo2000, La4000, Pa7500, Pl1000, Ti7500

Arnold Laver

Firs Trading Estate, Oldington Lane, Kidderminster, Worcestershire DY11 7QN e: kidderminster@laver.co.uk w: www.laver.co.uk t: 01562 66557 Jo2000, La4000, Pa7500, Pl1000, Ti7500

Arnold Laver

Hertsmere Industrial Park, Chester Road, Borehamwood, Hertfordshire WD6 1WS e: borehamwood@laver.co.uk w: www.laver.co.uk t: 01923 336666 Jo2000, La4000, Pa7500, Pl1000, Ti7500

Arnold Laver

124 New Road, Rainham, Essex RM13 8RS e: london@laver.co.uk w: www.laver.co.uk t: 01708 529500 Jo2000, La4000, Pa7500, Pl1000, Ti7500

Little London Road, Sheffield, South Yorkshire S8 0UH e: sheffield@laver.co.uk w: www.laver.co.uk t: 0114 255 7341 Bu1000, Jo2000, Pa7500, Pl1000, Ti7500

Arnold Laver

Arnold Laver

Arnold Laver Timberworld Coventry, Unit C1 Grovelands Industrial Estate, Longford, Coventry CV7 9ND e: coventry@laver.co.uk w: www.laver.co.uk t: 02476 263900

Arnold Laver

Basingstoke Road, Reading, Berkshire RG2 0QN e: reading@laver.co.uk w: www.laver.co.uk t: 0118 975 1100 Jo2000, Pa7000, Pl1000, Ti7500

Arnold Laver

Brabazon Hangar, West Bay, Filton, Bristol BS34 7QS e: bristol@laver.co.uk w: www.laver.co.uk t: 0117 312 1160 Jo2000, Pa7500, Pl1000, Ti7500, Tr4000

Arnold Laver

Bramall Lane, Sheffield, South Yorkshire S2 4RJ e: enquiries@laver.co.uk w: www.laver.co.uk t: 0114 223 0300 Jo2000, La4000, Pa7500, Pl1000, Ti7500

Arnold Laver

Canal Road, Bradford, West Yorkshire BD2 1AR e: bradford@laver.co.uk w: www.laver.co.uk t: 01274 732861 Jo2000, La4000, Pa7500, Pl3000, Ti7500

Liverpool Road, Cadishead, Manchester M44 5BZ e: manchester@laver.co.uk w: www.laver.co.uk t: 0161 777 9000 Jo2000, La4000, Pa7500, Pl1000, Ti7500

Arnold Laver

Olympic Sawmills, Oxclose Park Road North, Sheffield, South Yorkshire S20 8GN e: sheffield@laver.co.uk w: www.laver.co.uk t: 0114 276 4700 Jo2000, Pa7500, Pl1000, Ti7500, Tr4000

Arnold Laver

Pontefract Road, Stourton, Leeds, West Yorkshire LS10 1SW e: leeds@laver.co.uk w: www.laver.co.uk t: 0113 270 4086 Jo2000, La4000, Pa7200, Pa7500, Ti7500

Arnold Laver

Unit 12 Kingston Park, Flaxley Road, Hampton, Peterborough PE2 9FT e: peterborough@laver.co.uk w: www.laver.co.uk t: 01733 742140

Arnold Laver

Wagonway Road, Hebburn, Tyne & Wear NE31 1SP e: newcastlet@laver.co.uk w: www.laver.co.uk t: 0191 428 6666 Jo2000, La4000, Pa7500, Pl1000, Ti7500

Arthur Architects

Cornerstone, St Boniface Road, Ventnor, Isle of Wight PO38 1PL e: design@arthur-architects.com w: www.arthur-architects.com t: 07765 956421 Ar2000, Ar2500, Co8800, En2000, He1000

www.trada.co.uk

Arts University Bournemouth

Wallisdown, Poole, Dorset BH12 5HH e: cvithana@aub.ac.uk w: www.aub.ac.uk t: 01202 363135 Ed4000

Arup

13 Fitzroy Street, London W1T 4BQ e: a.c.general@arup.com w: www.arup.com t: 020 7636 1531 f: 020 7755 3666 En2000

ARV Solutions

1 Buckingham Court, Beaufort Park, Bradley Stoke, Bristol, Avon BS32 4NF e: jim.roach@arvsolutions.co.uk w: www.arvsolutions.co.uk t: 0117 959 2008 Co4500, Co9050

Ascot Timber Buildings Ltd

Unit 5, Fernhurst Business Park, Fernhurst, Haslemere, Surrey GU27 3HB e: sales@ascot-timber.co.uk w: www.ascot-timber.co.uk t: 01428 654334 Bu6500

Ashbrooke Homes Ltd

Park Lodge, Poundisford, Taunton, Somerset TA3 7AE e: info@ashbrookehomes.co.uk w: www.ashbrookehomes.co.uk t: 07789 772150 Bu3000

Ashley Largent Associates Ltd The Studio, Fair Green, Diss, Norfolk IP22 4BG e: design@alaltd.co.uk t: 01379 658606 En2000

Aspen Lodges Ltd

28 Goose Lane, Wickersley, Rotherham, South Yorkshire S66 1JS e: pete@aspenlodges.co.uk w: www.aspenlodges.co.uk t: 07447 000079 Bu3000, Bu6000

Associated Architects

1 Severn Street Place, The Mailbox, Birmingham B1 1SE e: mail@associated-architects.co.uk w: www.associated-architects.co.uk t: 0121 233 6600 Ar2000, Co7250

Astudio

The Tower Building, 8th Floor, 11 York Road, London SE1 7NX e: info@astudio.co.uk w: www.astudio.co.uk t: 020 7401 4100 Ar2000

A-Tec Design

9 Treninnick Hill, Newquay, Cornwall TR7 2JS e: info@a-tecdesign.com w: www.a-tecdesign.com t: 01872 300798 Ar2000, Ar2500

Atelier HB

10 Westabrook, Ashburton, Devon TQ13 7QS e: imbooker@mac.com w: www.atelierhb.co.uk t: 07774 618419 Ar2000

Atkins

Woodcote Grove, Ashley Road, Epsom, Surrey KT18 5BW e: info@atkinsglobal.com w: www.atkinsglobal.com/en-GB t: 01372 726140 f: 01372 740055 En2000

Atlantic Contracts Ltd

Atlantic House, 7 Stirling Way, Borehamwood, Hertfordshire WD6 2BT e: ryan.hayes@atlanticcontracts.co.uk w: www.atlanticcontracts.co.uk t: 020 8736 4350 f: 020 8736 4351 Bu3000

Aukett Swanke

10 Bonhill Street, London EC2A 4PE e: calvin.grant@aukettswanke.com w: www.aukettswanke.com t: 020 7843 3000 Ar2000

Austin Trueman Associates

8 Spicer Street, St. Albans, Hertfordshire AL3 4PQ e: engineers@austintrueman.co.uk w: www.austintrueman.co.uk t: 01727 858752 f: 01727 852376 Co4000, Co9100, Co9200, En2000

Avanti Architects

361-373 City Road, London EC1V 1AS e: aa@avantiarchitects.co.uk w: www.avantiarchitects.co.uk t: 020 7278 3060 f: 020 7278 3366 Ar2000

Avie Consulting Ltd

6 Killingbeck Court, Killingbeck Office Park, Killingbeck Drive, Leeds, West Yorkshire LS14 6FD e: admin@avie-consulting.co.uk w: www.avie-consulting.co.uk t: 0113 249 7416 En2000

Axiom Architects

1 Brooklands Yard, Southover High Street, Lewes, East Sussex BN7 1HU e: mail@axiomarchitects.co.uk w: www.axiomarchitects.co.uk t: 01273 479269 Ar2000

Axiom Architects

43 Eagle Street, London WC1R 4AT e: mail@axiomarchitects.co.uk w: www.axiomarchitects.co.uk t: 020 7421 8877

Axiom Architects

First Floor, Arlington House, Park Five Business Centre, Exeter, Devon EX2 7HU e: mail@axiomarchitects.co.uk w: www.axiomarchitects.co.uk t: 01392 368426 f: 01392 368427

Ayres Haynes Architects Ltd Mount Batten Watersports Centre, 70 Lawrence Road, Mount Batten, Plymouth, Devon PL9 9SJ e: mh@ayreshaynes.com w: www.ayreshaynes.com t: 01752 408051

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TRADA Members

B

Bartram Timber Frame Ltd

B & K Structures

Peveril House, Alfreton Road, Derby, Derbyshire DE21 4AG e: sales@bkstructures.co.uk w: www.bkstructures.co.uk t: 01773 853400 f: 01773 857389 Gl2000, Lv1000, Ti1500, Ti2000

B G Consulting Ltd

33/35 Bell Street, Reigate, Surrey RH2 7AW e: cadoffice@bg-consulting.co.uk w: www.bg-consulting.co.uk t: 01737 240241 f: 01737 240341 Co4000, En2000

Bailey Johnson Hayes Suite 1.1, Barnett House, Manchester M2 2AN e: info@bjh.co.uk w: www.bjh.co.uk t: 0161 279 7777 f: 0161 236 3552 En2000

BakerHicks

One Warwick Technology Park, Gallows Hill, Warwick, Warwickshire CV34 6YL e: contact@bakerhicks.com w: www.morgansindall.com t: 01926 567800 Bu3000

Ballingly Joinery (Wexford) Ltd

Ballingly Enterprise Centre, Ballingly, Wellingtonbridge, Co Wexford YS5 K7KX, Republic of Ireland e: hdoyle@ballinglyjoinery.com w: www.ballinglyjoinery.com t: 00 353 51 561 169 f: 00 353 51 561 409

Barefoot and Gilles

2 Cromwell Court, 16 St Peters Street, Ipswich, Suffolk IP1 1XG e: design@barefootgilles.com w: www.barefootgilles.com t: 01473 257474 f: 01473 251540 Ar2000

Barnett Ratcliffe Partnership The Old Library, Rowley Street, Stafford, Staffordshire ST16 2RH e: info@barnettratcliffe.co.uk w: www.barnettratcliffe.co.uk t: 01785 255088

Barry Honeysett Consulting Structural & Civil Engineers

Bathurst House, Smythen Street, Exeter, Devon EX1 1BN e: engineers@barryhoneysett.co.uk w: www.barryhoneysett.co.uk t: 01392 272510 f: 01392 272520 Co4000, Co9100, En2000, He1000

Barter Hill Partnership Ltd

Wynters Farm Barn, Magdalen Laver, Ongar, Essex CM5 0EW e: mail@barterhill.co.uk w: www.barterhill.co.uk t: 01279 430888 f: 01279 429007 Co9100, Co9200, En2000, Ti1200

Bartlett School of Architecture

University College London, 22 Gordon Street, London WC1H 0QB e: r.sheil@ucl.ac.uk w: www.ucl.ac.uk/bartlett/architecture t: 020 3108 9628 Ed4000

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High Road, Beeston, Sandy, Bedfordshire SG19 1PB e: kevin@bartramtimber.co.uk w: www.bartramtimber.co.uk t: 01767 699699 f: 01767 699911 Ti2000

Bauman Lyons

Black Building, 2 Newton Road, Leeds, West Yorkshire LS7 4HE e: architects@baumanlyons.co.uk w: www.baumanlyons.co.uk t: 0113 322 3344 f: 0113 262 3800

Baynham Meikle Partnership

8 Meadow Road, Edgbaston, Birmingham, West Midlands B17 8BU e: admin@bm-p.co.uk w: www.bm-p.co.uk t: 0121 434 4100 f: 0121 434 4073 Co4000, Co5000, En2000, Te4000

BB Partnership Ltd

Units 33-34, The Studios, 8 Hornsey Street, London N7 8EG e: architect@bbpartnership.co.uk w: www.bbpartnership.co.uk t: 020 7336 8555 f: 020 7336 8777 Ar2000

bb+c architects ltd

33a Bridge Street, Cambridge, Cambridgeshire CB2 1UW e: mail@bbcarchitects.co.uk w: www.bbcarchitects.co.uk t: 01223 313386 f: 01223 464233 Ar2000

BCL Timber Projects Ltd

The Old Byre, Oakley Farm, Pound Lane, Hurst, Berkshire RG10 0RS e: brian@bcl.uk.net w: www.bcltimberprojects.co.uk t: 01189 344155 f: 01189 344188 Cd1000, Pa7200, Pa8700

BDesign7

90 Dunn Side, Chelmsford, Essex CM1 1BY e: info@bdesign7.com w: www.bdesign7.com t: 07999 096001

BdR Civil & Structural Engineering Ltd The Old Engine House, Goblands Farm Business Park, Court Lane, Hadlow, Kent TN11 0DP e: engineering@bdr.uk.com w: www.bdr.uk.com t: 01732 851416 f: 01732 852200 Co4000, En2000, Ti1200

BE Timber Frame

Unit 2b, Fenner Rd, Great Yarmouth, Norfolk NR30 3PS e: betimberframe@gmail.com w: www.betimberframe.co.uk t: 01493 331411 f: 01493 331411 Ti1500, Ti2000

BEAMCALC.CO.UK

Business Works, Henry Robson Way, Station Road, South Shields NE33 1RF e: info@beamcalc.co.uk w: www.beamcalc.co.uk t: 0191 427 4540

BEAMCALC.CO.UK

Second Floor, Woodbury Grove, Finchley, North London N12 0DR e: info@beamcalc.co.uk w: www.beamcalc.co.uk t: 020 8243 8618

Beard

Faraday Road, Swindon, Wiltshire SN3 5JY e: craig.cerba@beardconstruction.co.uk t: 01793 868051 Bu3000

Beaumont Forest Products Ltd

27 Victoria Street, High Wycombe, Buckinghamshire HP11 2LT e: wsales@beaumontforest.co.uk w: www.beaumontforest.co.uk t: 01992 460000 Cd1000, Fl4000, Pa7500, St2000, Ti7700

Beaumont Forest Products Ltd

Riverside Sawmill, Geddings Road, Hoddesdon, Hertfordshire EN11 0NT e: hsales@beaumontforest.co.uk w: www.beaumontforest.co.uk t: 01992 460000 f: 01992 460020 De2000, En1000, Fl7000, Ti7500, Va0500

Beaumont Forest Products Ltd

The Crown Estate Yard, Blanes Lane, Off Swinley Road, Ascot, Berkshire SL5 8AZ e: asales@beaumontforest.co.uk w: www.beaumontforest.co.uk t: 01344 874137 f: 01344 874139 Fe3000, Md3000, Mo4500, Mo5000, St6000

Belac Group Ltd

Unit 3.4, 17 Starling Way, Strathclyde Business Park, Bellshill, North Lanarkshire ML4 3PU e: admin@belac.co.uk w: www.belac.co.uk t: 01414 590010 Bu3000

Bell & Sime Buildbase

Balunie Drive, Baluniefield Trading Estate, Dundee, Tayside DD4 8XE e: dundee@buildbase.co.uk w: www.buildbase.co.uk t: 01382 730630 f: 01382 739639 Bu1000, Jo2000, Ti7500

Benfield ATT Group Ltd

Fast Frame Systems, 5 - 6 Castle Way, Severn Bridge Industrial Estate, Caldicot, Monmouthshire NP26 5YG e: info@fastframesystems.co.uk w: www.fastframesystems.co.uk t: 01291 437054

Benfield ATT Group Ltd

Simply Self-build, 5 - 6 Castle Way, Severn Bridge Industrial Estate, Caldicot, Monmouthshire NP26 5YG e: info@simplyselfbuild.co.uk w: www.simplyselfbuild.co.uk t: 01291 437053

Benfield ATT Group Ltd

Solidlox, 5 - 6 Castle Way, Severn Bridge Industrial Estate, Caldicot, Monmouthshire NP26 5YG e: solidlox@benfieldattgroup.co.uk w: www.timber-frame-building.co.uk t: 01291 437057

Benfield ATT Group Ltd

UK HQ & Factory, 5-6 Castle Way, Severn Bridge Industrial Estate, Caldicot, Monmouthshire NP26 5YG e: freda.sanders@benfieldatt.co.uk w: www.benfieldattgroup.co.uk t: 01291 437050 f: 01291 437051 Bu6800, Co9100, St8000, Ti2000, Tr4000

Benham Architects Ltd

27 St Agnes Road, Heath, Cardiff CF14 4AN e: benhamarchitect@gmail.com t: 02920 704688

Bernard Eacock Ltd

1 Fine Street, Peterchurch, Herefordshire HR2 0SN e: nle@bernardeacock.com w: www.bernardeacock.com t: 01981 550550 f: 01981 550550

Bespoke Timber Frames

Unit 2, Stag Business Park, Old A45, Woolpit, Bury St Edmunds, Suffolk IP30 9FX e: elebbon@bespoketimberframes.com w: www.bespoketimberframes.com t: 07812 052284 Bu3000, Ho3000, Ti2500, Ti2000, Ti1500

Betts Associates Ltd

47 Priory St, Lewes, East Sussex BN7 1HJ e: mail@benjonesarchitects.co.uk w: www.benjonesarchitects.co.uk t: 01273 470703 Ar2000

Old Marsh Farm Barns, Welsh Road, Sealand, Flintshire CH5 2LY e: mel.frimston@betts-associates.co.uk w: www.betts-associates.co.uk t: 01244 288178 f: 01244 288516 Co4000, Co5000, Co9200, En2000

Bench Architects

BH & M

Ben Jones Architects

23 Terrace Road, Buxton, Derbyshire SK17 6DU e: info@bencharchitects.co.uk w: www.bencharchitects.co.uk t: 01298 23991 Ar2000

Benchmark Carpenter & Joiners

Southfork Farm, Rue du Trot, St. Saviour, Jersey JE2 7JQ, Channel Islands e: francis.young@benchmark.je t: 01534 528084

Benchmark Timber Ltd

Cressex Enterprise Centre, Lincoln Road, High Wycombe, Buckinghamshire HP12 3RL e: enquiries@benchmarktimber.co.uk w: www.benchmarktimber.co.uk t: 01494 435144 f: 01494 980146 Cd1000, La7000, Ti0200, Ti7500, Ti7700

Unit 5, Old Power Station, 121 Mortlake High Street, London SW14 8SN e: mlh@bhmarchitects.com w: www.bhmarchitects.com t: 020 8878 4667 f: 020 8878 8907 Ar2000

Bickerdike Allen Partners LLP 121 Salusbury Road, Queens Park, London NW6 6RG e: mail@bickerdikeallen.com w: www.bickerdikeallen.com t: 020 7625 4411 f: 020 7625 0250 Ar2000, Co4000, Co5000, Te0500

Biker Group

Moor Park, Moor Road, Leyburn, North Yorkshire DL8 5LA e: info@bikergroup.co.uk w: www.bikerbespokejoinery.co.uk t: 01969 623020 f: 01969 625497 Do2500, Do5000, Jo4000, Wi2000

www.trada.co.uk

TRADA Members

Bilton Architectural Services Ltd The Coach House, Merttens Drive, Rugby, Warwickshire CV22 7AE e: designstudio@biltondesign.co.uk w: www.biltonas.co.uk t: 01788 569465 Ar2500

Bingham Yates Ltd

38 Victoria Place, Carlisle, Cumbria CA1 1EX e: info@binghamyates.co.uk t: 01228 521436 f: 01228 515579 Co4000, En2000

Binladin Woodwork Factory Co. Ltd

Blake, Gavin RIBA FRSA: Chartered Architect The Studio, 35 Oakfield, Sale, Cheshire M33 6NB e: oakfield@clara.co.uk t: 0161 973 4061 Ar2000

Blenheim House Construction Ltd

The Old Bank House, 11-13 London Street, Chertsey, Surrey KT16 8AP e: bhc@bhcltd.co.uk w: www.bhcltd.co.uk t: 01932 578700 f: 01932 578701

PO Box 958, Jeddah 21421, Saudi Arabia e: mbcowwf@awalnet.net.sa w: www.bwwf.com t: 00 966 2 620 0163 f: 00 966 2 620 9813 Jo4000, Jo5000

Blok Build Ltd

BJE Timberframes

Blou Construction Ltd

2 Pen y Ffridd, Pontrobert, Meifod, Powys SY22 6JW e: barryevans32@gmail.com w: www.bjetimberframes.com t: 07989 380206

Black Associates Structural Engineering Consultants Ltd

133 Marfleet Avenue, Hull, Humberside HU9 5SA e: kleinhout@blokbuild.com w: www.blokbuild.com t: 01482 788355 10 Northumberland Alley, London EC3N 2EJ e: mark@blouconstruction.com w: www.blouconstruction.com t: 020 7488 0718 Bu3000, Cj1000

BLP Insurance

19 Grantlea Grove, Mount Vernon, Glasgow, Lanarkshire G32 9JW e: info@dacecltd.com t: 07763 463931 En2000

90 Fenchurch Street, London EC3M 4ST e: info@blpinsurance.com w: www.blpinsurance.com t: 020 7204 2424 f: 020 7929 1366 In2000, Wa1000

Blackdown Buildings

Blue Forest (UK) Ltd

Fourways Cross, Hemyock, Cullompton, Devon EX15 3PF e: roy@brookridge.co.uk w: www.brookridgegroup.co.uk t: 01823 680546

Blackett-Ord Conservation Ltd

33 Chapel Street, Appleby-in-Westmorland, Cumbria CA16 6QR e: engineering@blackett-ordconservation.co.uk t: 01768 352572 f: 01768 352572 Ar2000, En2000

Blackwell Structural Consultants Ltd 1 Green Lodge Barn, Nobottle, Northampton NN7 4HD e: neil@blackwellconsultants.co.uk w: www.blackwellconsultants.co.uk t: 01604 755000 En2000

Blair Gratton Architects Ltd

The Studio, Bens Field Farm, Beechill, Wadhurst, East Sussex TN5 6JR e: info@blueforest.com w: www.blueforest.com t: 01892 750090

Blue Square Solutions Ltd

Unit 7 Raymond Court, Piperell Way, Haverhill CB9 8PH e: michele@bluesquaresolutions.co.uk w: www.bluesquaresolutions.co.uk t: 01440 713752 f: 01440 713753

BM TRADA

Chiltern House, Stocking Lane, Hughenden Valley, High Wycombe, Buckinghamshire HP14 4ND e: cert.admin@bmtrada.com w: www.bmtrada.com t: 01494 569750 Ce2000, Co9200, Te2000, Te3000, Te4000

29 York Street, Derby, Derbyshire DE1 1FZ e: info@blairgratton.co.uk w: www.blairgratton.co.uk t: 01332 340458 f: 01332 291771 Ar2000

Bob Black Construction Ltd

Blake Architects Ltd

Bolt Building Supplies Ltd

1 Coves Barn, Jackbarrow Road, Winstone, Cirencester, Gloucestershire GL7 7JZ e: jn@blakearchitects.co.uk w: www.blakearchitects.co.uk t: 01285 841407 Ar2000

Blake Hopkinson Architecture LLP 22A Union Quay, North Shields, Tyne and Wear NE30 1HJ e: darren@bharchitecture.co.uk w: www.bharchitecture.co.uk t: 0191 257 0022 Ar2000

www.trada.co.uk

20 Hemingford Rd, St Ives, Cambridgeshire PE27 5HG e: bob@bobblack.uk.com w: www.bobblack.uk.com t: 07795 078271

22 Fifth Avenue, Bluebridge Industrial Estate, Colchester Road, Halstead, Essex CO9 2SZ e: tp@boltbuildingsupplies.co.uk w: www.boltbuildingsupplies.co.uk t: 01787 477261 f: 01787 476568 Bu1000, Mo5000, St3000, Ti7500, Tr4000

Bona Ltd

6 Thornton Chase, Linford Wood, Milton Keynes, Buckinghamshire MK5 8PJ e: info.uk@bona.com w: www.bona.com t: 01908 525150 f: 01908 311677 Ad1000, Co1500, Fl2500, La1000, Ma1500

Border Hardwood Ltd

Unit E17 & E18, Wem Industrial Estate, Soulton Road, Wem, Shropshire SY4 5SD e: info@borderhardwood.com w: www.borderhardwood.com t: 01939 235550 f: 01939 235552 Ha7000, Sa7000, St6000, Ti0500, Ti7600

Border Oak Design & Construction

Kingsland Saw Mills, Kingsland, Leominster, Herefordshire HR6 9SF e: sales@borderoak.com w: www.borderoak.com t: 01568 708733 f: 01568 702010 Ho3000, Ti2500

Boundary Space

Bishops Palace, The Courtyard, Fulham Palace, London SW6 6EA e: tfr@boundaryspace.com w: www.boundaryspace.com t: 07786 388643 Ar2000

Boxco2 Consultants Ltd

Bradfords Building Supplies

Blackhill, Verwood, Dorset BH31 6HA e: bbs.verwood@bradfords.co.uk w: www.bradfords.co.uk t: 01202 823341

Bradfords Building Supplies

Brunel Road, Newton Abbot, Devon TQ12 4PB e: bbs.newtonabbot@bradfords.co.uk w: www.bradfords.co.uk t: 01626 361146

Bradfords Building Supplies

Canal Road Industrial Estate, Trowbridge, Wiltshire BA14 8RL e: bbs.trowbridge@bradfords.co.uk w: www.bradfords.co.uk t: 01225 712020

Bradfords Building Supplies Crown Works, Malvern, Worcestershire WR14 2QP e: bbs.malvern@bradfords.co.uk w: www.bradfords.co.uk t: 01684 573297

2 Southcroft Avenue, West Wickham, Kent BR4 9JX e: r.lythcott@boxco2.co.uk w: www.boxco2.com t: 020 7622 8556 Ar2000

Bradfords Building Supplies

Boyle Consultants Ltd

Digby Road, Sherborne, Dorset DT9 3NW e: bbs.sherborne@bradfords.co.uk w: www.bradfords.co.uk t: 01935 813254

Bourock Farm, Dunlop, East Ayrshire KA3 4DS e: info@boyleconsultants.co.uk t: 01560 484066 Ce2000, En2000

Bradfords Building Supplies

1 Billacombe Road, Laira Bridge, Pomphlett, Plymstock, Devon PL9 7HT e: bbs.plymouth@bradfords.co.uk w: www.bradfords.co.uk t: 01752 401100

Bradfords Building Supplies

62 Gazelle Road, Weston-super-Mare, Somerset BS24 9ES e: bbs.weston@bradfords.co.uk w: www.bradfords.co.uk t: 01934 630380

Bradfords Building Supplies

98 Hendford Hill, Yeovil, Somerset BA20 2QR e: bradfords@bradfords.co.uk w: www.bradfords.co.uk t: 01935 423311

Bradfords Building Supplies 139 Bristol Road, Bridgwater, Somerset TA6 4AQ e: bbs.bridgwater@bradfords.co.uk w: www.bradfords.co.uk t: 01278 422654

Bradfords Building Supplies

Alexandria Road, Sidmouth, Devon EX10 9HE e: bbs.sidmouth@bradfords.co.uk w: www.bradfords.co.uk t: 01395 578151

Bradfords Building Supplies Alton Road, Ross-on-Wye, Herefordshire HR9 5JE e: bbs.ross@bradfords.co.uk w: www.bradfords.co.uk t: 01989 562955

Bradfords Building Supplies

Bell Close, Newnham Industrial Estate, Plympton, Devon PL7 4JH e: bbs.plympton@bradfords.co.uk w: www.bradfords.co.uk t: 01752 348877

Dawlish Warren, Dawlish, Devon EX7 0NH e: bbs.dawlish@bradfords.co.uk w: www.bradfords.co.uk t: 01626 888407

Bradfords Building Supplies

Bradfords Building Supplies Dudnance Lane, Pool, Redruth, Cornwall TR15 3QT e: bbs.redruth@bradfords.co.uk w: www.bradfords.co.uk t: 01209 711929

Bradfords Building Supplies

Eastwood Park, Penryn, Cornwall TR10 8LA e: bbs.penryn@bradfords.co.uk w: www.bradfords.co.uk t: 01326 373710

Bradfords Building Supplies

Harbour Road, Seaton, Devon EX12 2NH e: bbs.seaton@bradfords.co.uk w: www.bradfords.co.uk t: 01297 20123

Bradfords Building Supplies Hereford Road, Ledbury, Herefordshire HR8 2PR e: bbs.ledbury@bradfords.co.uk w: www.bradfords.co.uk t: 01531 631633

Bradfords Building Supplies Holland Way, Blandford Forum, Dorset DT11 7SX e: bbs.blandford@bradfords.co.uk w: www.bradfords.co.uk t: 01258 452692

Bradfords Building Supplies Holly Hill Wood Depot, Cinderford, Gloucestershire GL14 3JA e: bbs.cinderford@bradfords.co.uk w: www.bradfords.co.uk t: 01594 826152

Bradfords Building Supplies Liverton Business Park, Exmouth, Devon EX8 2NU e: bbs.exmouth@bradfords.co.uk w: www.bradfords.co.uk t: 01395 200840

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TRADA Members

Bradfords Building Supplies

Bradfords Building Supplies

Bradfords Building Supplies

Bradfords Building Supplies

Manfield Way, St Austell, Cornwall PL25 3HQ e: bbs.staustell@bradfords.co.uk w: www.bradfords.co.uk t: 01726 793279 Moorswater Industrial Estate, Liskeard, Cornwall PL14 4LA e: bbs.liskeard@bradfords.co.uk w: www.bradfords.co.uk t: 01579 345293

Bradfords Building Supplies

Old Mole Depot, Willand, Cullompton, Devon EX15 2RU e: bbs.willand@bradfords.co.uk w: www.bradfords.co.uk t: 01884 820078

Bradfords Building Supplies Penton Sawmills, Newbury Lane, Andover, Hampshire SP11 0SP e: bbs.andover@bradfords.co.uk w: www.bradfords.co.uk

Stratton Business Park, Bude, Cornwall EX23 8LY e: bbs.bude@bradfords.co.uk w: www.bradfords.co.uk t: 01288 270510

The Building Centre, Worcester, Worcestershire WR4 9EG e: bbs.worcester@bradfords.co.uk w: www.bradfords.co.uk t: 01905 723535

Bradfords Building Supplies

The Old Mill, Moretonhampstead, Devon TQ13 8NQ e: bbs.moretonhampstead@bradfords.co.uk w: www.bradfords.co.uk t: 01647 441222

Bradfords Building Supplies Trading as Bradfords Landmark, Paignton, Devon TQ4 7BL w: www.bradfords.co.uk t: 01803 782111

Bradfords Building Supplies

Bradfords Building Supplies

Bradfords Building Supplies

Bradfords Building Supplies

Bradfords Building Supplies

Bradfords Building Supplies

Poiniou Way, Long Rock Industrial Estate, Penzance, Cornwall TR20 8AS e: bbs.penzance@bradfords.co.uk w: www.bradfords.co.uk Porchestall Drove, Glastonbury, Somerset BA6 9NW e: bbs.glastonbury@bradfords.co.uk w: www.bradfords.co.uk t: 01458 834770 Portview Road, Bristol BS11 9LD e: bbs.avonmouth@bradfords.co.uk w: www.bradfords.co.uk t: 0117 982 8282

Bradfords Building Supplies

Sea Road, Bridport, Devon DT6 3DW e: bbs.bridport@bradfords.co.uk w: www.bradfords.co.uk t: 01308 422324

Bradfords Building Supplies

Silverton Road, Exeter, Devon EX2 8ND e: bbs.exeter@bradfords.co.uk w: www.bradfords.co.uk t: 01392 829080

Bradfords Building Supplies

Southwood, Shepton Mallet, Somerset BA4 6LX e: bbs.evercreech@bradfords.co.uk w: www.bradfords.co.uk t: 01749 830231

Bradfords Building Supplies Station Approach, Honiton, Devon EX14 2EZ e: bbs.honiton@bradfords.co.uk w: www.bradfords.co.uk t: 01404 42161

Bradfords Building Supplies

Station Road, Ilminster, Somerset TA19 9AY e: bbs.ilminster@bradfords.co.uk w: www.bradfords.co.uk t: 01460 54551

Bradfords Building Supplies Station Road, Crewkerne, Somerset TA18 8AW e: bbs.crewkerne@bradfords.co.uk w: www.bradfords.co.uk t: 01460 73961

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Timber 2020 Industry Yearbook

Unit 2, Martock, Somerset TA12 6HB e: bbs.martock@bradfords.co.uk w: www.bradfords.co.uk t: 01935 314780 Unit 3 Crown Close, Taunton, Somerset TA2 8RX e: bbs.tauntonpriorswood@bradfords.co.uk w: www.bradfords.co.uk t: 01823 218500 Unit 5, 7 & 8 Buckingham Close, Bermuda Industrial Estate, Nuneaton CV10 7JT e: bbs.nuneaton@bradfords.co.uk w: www.bradfords.co.uk

Bradfords Building Supplies

Unit 11/13 Poundbury West Industrial Estate, Dorchester, Dorset DT1 2PG e: YPS.Taunton@ypsl.co.uk w: www.bradfords.co.uk t: 01823 924378

Bradfords Building Supplies

Unit 19 Sandford Lane Industrial Estate, Wareham, Dorset BH20 4DY e: bbs.wareham@bradfords.co.uk w: www.bradfords.co.uk t: 01929 502040

Bradfords Building Supplies Wellington New Road, Taunton, Somerset TA1 5LU e: bbs.taunton@bradfords.co.uk w: www.bradfords.co.u t: 01823 254666

Bradfords Building Supplies Woodmead Road, Axminster, Devon EX13 5PJ e: bbs.axminster@bradfords.co.uk w: www.bradfords.co.uk t: 01297 33146

BRANZ Ltd

1222 Moonshine Rd RD1, Judgeford, Porirua, Wellington 5381, New Zealand e: suzanne.lester@branz.co.nz w: www.branz.co.nz t: 00 64 4237 1170 f: 00 64 4237 1171 Co4000

Brendan Flynn Construction Ltd

British Woodworking Federation

Brentwood Lofts Ltd

Brodies Timber

Brian Evans Associates Ltd

Brooks Architects Ltd

46 Watford Road, Northwood, Middlesex HA6 3PL e: info@bfcl.co.uk w: www.bfcl.co.uk t: 01923 826040 f: 01923 835318 Bu3000, Ca0500, Ti1500

246 Hatch Rd, Pilgrims Hatch, Brentwood, Essex CM15 9QR e: info@brentwoodlofts.co.uk w: www.brentwoodlofts.co.uk t: 01277 227470 f: 01277 227470 72b Western Road, Tring, Hertfordshire HP23 4BB e: brian@be-associates.co.uk t: 01442 825725 Co9100, Co9200, En2000

Brian J Stocker

Wheelhouse, Nunnery Green, Canterbury, Kent CT1 3JW e: bjstocker@me.com t: 01227 762008 f: 01227 762008 En2000

Bridgewater Building Solutions 50 Wellington Street, Baltic Chambers, Glasgow, Glasgow City G2 6HJ e: stewart@bridgewaterbuilding.co.uk w: www.bridgewaterbuilding.co.uk t: 01412 488009 Bu3000

British & Irish Association of Fastener Distributors Ltd 6 Alfred Street, Rushden, Northamptonshire NN10 9YS e: info@biafd.org.uk w: www.biafd.org t: 07519 853402 As1000

The Building Centre, 26 Store Street, London WC1E 7BT e: bwf@bwf.org.uk w: www.bwf.org.uk t: 0844 209 2610 f: 0844 209 2611 As1000, Co7000, Co9200

The Old Sawmill, Inver, Dunkeld, Perthshire PH8 0JR e: mail@brodiestimber.co.uk w: www.brodiestimber.co.uk t: 01350 727723 Cj1000, Do5000, Fu4000, Ma2500, Ti7500 16 Colonial House, Leiston, Suffolk IP16 4JD e: info@brooksarchitects.com t: 01728 832165

Brooks Bros (UK) Ltd

1-3 Glebe Road, Gillibrands, Skelmersdale, Lancashire WN8 9JP e: david.johnson@brookstimber.co.uk w: www.brookstimber.com t: 01695 553700 f: 01695 553705 Fl3500, Ha7000, Md3000, Ti7600, Ti7700

Brooks Bros (UK) Ltd

Blackwater Place, The Causeway, Maldon, Essex CM9 4GG e: sales@brookstimber.co.uk w: www.brookstimber.com t: 01621 877400 f: 01621 859054 Ce2000, Do2000, Fi4000, Ha2000, Mo0500

Brooks Bros (UK) Ltd

Gunby Road, Sewstern, Grantham, Lincolnshire NG33 5RD e: sales@brookstimber.co.uk w: www.brookstimber.com t: 01476 861097 f: 01476 860231

Brooks Bros (UK) Ltd

Lenton Lane, Nottingham NG7 2PR e: matt.hall@brookstimber.co.uk w: www.brookstimber.com t: 0115 993 1112 f: 0115 993 1151

Brooks Bros (UK) Ltd

The Timber Yard, Off Runsell Lane, Danbury, Chelmsford, Essex CM3 4PG e: simon.greig@brookstimber.co.uk w: www.brookstimber.com t: 01245 221700 f: 01245 223121 Cd1000, De2000, Ki3000, La6000, Mo5000

Brooks Bros London Ltd

Unit 3, Portland Commercial Estate, Ripple Road, Barking, Essex IG11 0TW e: sales@brookslondon.co.uk w: www.brookslondon.co.uk t: 020 8591 5300

Broughton Beatty Wearring Ltd

Station House, 7-9 Station Rd, Newport Pagnell, Buckinghamshire MK16 0AG e: consult@bbltd.co.uk w: www.bbltd.co.uk t: 01908 500888 f: 01908 500889 Co4000, Co9100, En2000, Su1000

Brown & Carroll (London) Ltd The Brown & Carroll Works, Honywood Road, Basildon, Essex SS14 3DT e: info@brown-carroll.co.uk w: www.brown-carroll.co.uk t: 01268 243850 f: 01268 243851 Jo1000, Jo4000

www.trada.co.uk

TRADA Members

Bryn Roberts Workshops (Joinery Manufacturers) Ltd Unit 3, Abbey Road North, rexham Industrial Estate, Wrexham LL13 9RX e: bryn.roberts@btconnect.com w: www.woodcraftdirect.co.uk t: 01978 661828 f: 01978 661553

BTS Timber Engineering Ltd

Building Design Partnership Ltd

BWB Consulting Ltd

Caledonian Plywood Company

Building With Frames

Byrom Associates Ltd

Caledonian Plywood Company

C

Caledonian Plywood Company

11 Ducie Street, PO Box 85, Piccadilly Basin, Manchester M60 3JA e: enquiries@bdp.com w: www.bdp.com t: 0161 828 2200 f: 0161 832 2235 Ar2000

The Woodworks, 23 Blean Common, Blean, Kent CT2 9EX e: office@btstimber.engineering t: 01227 678021 Ce2000, Co9100, Co9200, En2000, Ti1200

The Mill Building, Mount Wellington Mine, Fernsplatt, Truro, Cornwall TR4 8RJ e: sales@buildingwithframes.co.uk w: www.buildingwithframes.co.uk t: 01872 273757 Bu6500, Bu8000, Cd1000, St8500, Ti2000

Buchanan Surveys

Burgess Architects Ltd

5a Cornmarket, Thame, Oxfordshire OX9 3DX e: davidbuchanan@me.com w: www.buchanansurveys.co.uk t: 07525 817444 Su1000

Bucholz McEvoy Architects Ltd

Unit C Mountpleasant Business Centre, Mountpleasant Avenue, Dublin D6, Republic of Ireland e: info@bmcea.com w: www.bmcea.com t: 00 353 1496 6340 Ar2000

Buckley Gray Yeoman

Studio 4.04, The Tea Building, 56 Shoreditch High Street, London E1 6JJ e: mail@buckleygrayyeoman.com w: www.buckleygrayyeoman.com t: 020 7033 9913 f: 020 7033 9914 Ar2000

3 Piermont Green, London SE22 0LP e: ed@barc.co w: www.burgessarchitects.com t: 07513 000633

Buro Happold Ltd

Camden Mill, Lower Bristol Road, Bath, Avon BA2 3DQ e: andrew.wylie@burohappold.com w: www.burohappold.com t: 01225 320600 f: 0870 787 4148 Co4000, Co9100, En2000, En3000, Re4000

Burrell Foley Fischer LLP

Studio 9, 14 Southgate Road, London N1 3LY e: mail@bff-architects.co.uk w: www.bff-architects.co.uk t: 020 7620 6114 Ar2000

Burton, E O & Co Ltd

Bryce Buildbase, Polkemmet Garage, Dixon Terrace, Whitburn EH47 0LH t: 01501 741316 Bu1000, Jo2000, Pa7500, Ti7500, Tr4000

Thorndon Sawmills, The Avenue, Brentwood, Essex CM13 3RZ e: timber@eoburton.com w: www.eoburton.com t: 01277 260810 f: 01277 262823 De2000, Fl4000, Ma2500, Mo4500, Ti0500

Buildbase Ltd

Burwell Deakins Architects

Buildbase Ltd

Cockerell Close, Stevenage SG1 2NB t: 01438 369201 Bu1000, Jo2000, Pa7500, Ti7500, Tr4000

Buildbase Ltd

Ipsley Street, Redditch B98 7AX t: 01527 67567 Bu1000, Jo2000, Pa7500, Ti7500, Tr4000

Buildbase Ltd

1180 Elliott Court, Coventry Business Park, Herald Avenue, Coventry, Warwickshire CV5 6UB e: info@bmf.org.uk w: www.bmf.org.uk t: 024 7685 4980 f: 024 7685 4981 As1000

www.trada.co.uk

C P Architects

110 George Street, Oban, Argyll PA34 5NT e: mail@cparchitects.net w: www.cparchitects.net t: 01631 563177 f: 01631 563234 Ar2000

C P R (Construction Plans & Regulations) Ltd

Unit 15 Imex Technology Park, Bellringer Road, Trentham Lakes South, Stoke-on-Trent, Staffordshire ST4 8JF e: admin@cprbuildingcontrol.co.uk w: www.cprbuildingcontrol.co.uk t: 01782 658929 f: 01782 646421 Bu3500, Co4000, Co5250, Su1000

C2 Designs

BWB Consulting Ltd

Builders Merchants Federation

34 Stasinou Street, Markides Rita Court 22, Flat 201, Strovolos 2003, Cyprus e: c.c.markides@cytanet.com.cy t: 00 357 99 680122 f: 00 357 22 378662 Co4000, Co8800, Co9300, En2000

BWB Consulting Ltd

Buildbase Ltd

Unipart House, Garsington Road, Cowley, Oxford OX4 2GQ e: tony.newcombe@graftongb.co.uk w: www.buildbase.co.uk t: 01865 871700 f: 01865 712662 Bu1000, Jo2000, Pa7500, Ti7500, Tr4000

C & C Markides Estates Ltd

C W T Partnership

Mandarin Court, Hambridge Road, Newbury RG14 5SU t: 01635 573700 Bu1000, Jo2000, Pa7500, Ti7500, Tr4000

Buildbase Ltd

The New Barn, Midfield, Shipham Lane, Star, Somerset BS25 1PT e: quentin@byromassociates.co.uk w: www.byromassociates.co.uk t: 01934 844837

Ground Floor, California Building, Deals Gateway, London SE13 7SF e: info@burwellarchitects.com w: www.burwellarchitects.com t: 020 8305 6010 f: 020 8305 6020 Ar2000, Ed4000, En2000, Re4000 11 Borough High Street, London SE1 9SE e: london@bwb-consulting.com w: www.bwbconsulting.com t: 020 7407 3879 Co5000, En2000, Su1000

Simpson Road, Bletchley, Milton Keynes MK1 1BB t: 01908 644222 Bu1000, Jo2000, Pa7500, Ti7500, Tr4000

Whitehall Waterfront, 2 Riverside Way, Leeds, West Yorkshire LS1 4EH e: leeds@bwb-consulting.com w: www.bwbconsulting.com t: 0113 233 8000 f: 0113 245 0654 Co5000, En2000, Su1000

49 Back Lane, Rochford, Essex SS4 1AY e: cwt@cwtpartnership.co.uk w: www.cwtpartnership.co.uk t: 01702 540146 f: 01702 540193 En2000 1 Yearsett Cottage, Linley Green, Whitbourne, Worcester, Worcestershire WR6 5RQ e: ian@c2designs.co.uk t: 07432 200925 En2000

4th Floor Carver's Warehouse, 77 Dale Street, Manchester M1 2HG e: manchester@bwb-consulting.com w: www.bwbconsulting.com t: 0161 233 4260 f: 0870 922 3799 Co5000, En2000, Su1000

Cahalane Bros Ltd

BWB Consulting Ltd

Calanpoint Contracts Ltd

5th Floor, Waterfront House, Station Street, Nottingham, Nottinghamshire NG2 3DQ e: nottingham@bwb-consulting.com w: www.bwbconsulting.com t: 0115 924 1100 f: 0115 950 3966 Co5000, En2000, Su1000

BWB Consulting Ltd

Livery Place, 35 Livery Street, Colmore Business District, Birmingham B3 2PB e: birmingham@bwb-consulting.com w: www.bwbconsulting.com t: 0121 233 3322 f: 0121 233 3318 Co5000, En2000, Su1000

Park Road, Dunmanway P47 A438, Republic of Ireland e: conor@cahalane.net w: www.cahalane.net t: 00 353 23 884 5133 f: 00 353 875 5224 52 Linford Street, London SW8 4UN e: andy@calanpoint.co.uk w: www.calanpoint.co.uk t: 020 7627 4740 f: 020 7627 5091 Ca0500, Jo1000, Jo4000

Calders & Grandidge

194 London Road, Boston, Lincolnshire PE21 7HJ e: shaun.mcgarry@sgbd.co.uk w: www.caldersandgrandidge.com t: 01205 358866 f: 01205 312400 Fe2000, Fe3000, Ga4000, Po1000, Pr1000

1 Cardowan Park, Tannochside Park, Uddingston, Glasgow G71 5PF e: mail@cpcply.co.uk w: www.caledonianplywood.com t: 01698 811666 f: 01698 811166 Do1000, Do2500, Md3000, Pa7000, Pl1000 Seafleet House, Port Of Tilbury, Tilbury, Essex RM18 7SG e: mail@cpcply.co.uk w: www.caledonianplywood.com t: 01375 850000 f: 01375 850001 Do1000, Do4500, Pa7000, Pa7500, Pl1000 Unit 16 Silver Court, Inter City Way, Bramley, Leeds LS13 4LY e: cpleeds@btconnect.com w: www.caledonianplywood.com t: 0113 236 1666 f: 0113 236 1661

Cameron & Ross

15 Victoria Street, Aberdeen, Grampian AB10 1XB e: info@cameronross.co.uk w: www.cameronross.co.uk t: 01224 642400 f: 01224 642406 Ce2000, Co4000, Co9100, Co9200, En2000

Campbell Jackson Architects Long Crichel House, Long Crichel, Wimborne, Dorset BH21 5JU e: mail@cjarch.com t: 01258 830250 Ar2000, Fu3000, He1000

Campbell of Doune Ltd

78 King Street, Crieff, Perthshire PH7 3HB e: info@campbellofdoune.co.uk w: www.campbellofdoune.co.uk t: 01764 655459 Co4000, En2000

Campbell Reith Hill LLP

15 Bermondsey Square, London SE1 3UN e: engineers@campbellreith.com w: www.campbellreith.com t: 020 7340 1700 Co5000, Co8800, Co9100, En2000, Ti1200

Campbell Reith Hill LLP

Chantry House, High Street, Coleshill, Birmingham B46 3BP e: birmingham@campbellreith.com w: www.campbellreith.com t: 01675 467484 En2000

Campbell Reith Hill LLP

No. 1 Marsden Street, Manchester M2 1HW e: manchester@campbellreith.com w: www.campbellreith.com t: 0161 819 3060 Co5000, En2000

Campbell Reith Hill LLP

Raven House, 29 Linkfield Lane, Redhill RH1 1SS e: surrey@campbellreith.com w: www.campbellreith.com t: 01737 784500 Co5000, En2000, En3000

Campbell Reith Hill LLP Wessex House, Pixash Lane, Bristol BS31 1TP e: bristol@campbellreith.com w: www.campbellreith.com t: 0117 916 1066 Co5000, En2000, En3000

Timber 2020 Industry Yearbook

| 243

TRADA Members

Canham Consulting

The Old School, 8 School Lane, Thorpe St Andrew, Norwich, Norfolk NR7 0EP e: mail@canhamconsulting.co.uk w: www.canhamconsulting.co.uk t: 01603 430650 f: 01603 430651 Co4000, Co9100, En2000, Su1000, Ti1200

Canvey Wharf Co Ltd, The

101 Point Road, Canvey Island, Essex SS8 7TJ e: admin@canveysupply.co.uk w: www.canveysupply.co.uk t: 01268 696666 f: 01268 696724 Bu1000, Fe3000, Jo2000, Pr1000, Ro2000

Capricorn Eco Timber

Unit D, Ladfordfields Industrial Estate, Seighford, Stafford, Staffordshire ST18 9QE e: roger@capricornecotimber.co.uk w: www.capricornecotimber.co.uk t: 01785 282307 f: 01785 282110 Cd1000, Ti0200, Ti0500, Ti7500, Ti7600

Castle Wood Floors

36 Lombard Road, Battersea, London SW11 3RP e: woodfloors@castle-online.co.uk w: www.castlewoodfloors.co.uk t: 020 7564 2315 f: 020 7564 2314 Fl4000, Fl5000

Catnic Ltd

Catnic, Pontypandy Industrial Estate, Caerphilly CF83 3GL e: paul.s.matthews@tatasteel.com w: www.catnic.com t: 029 2033 7900 f: 029 2086 7796 St8000

Centrespace design LLP

Bay Cottage, Bix, Henley on Thames, Oxfordshire RG9 6DB e: dan@centrespacedesign.co.uk w: www.centrespacedesign.co.uk t: 01491 573968 En2000

CGL Homes Ltd

16 Belvedere Road, Oxford OX4 2AZ e: martin@carbonalternatives.com w: www.carbonalternatives.co.uk t: 01865 582201

Unit 2 St Martins Business Park, Ellesmere Road, St Martins, Oswestry, Shropshire SY11 3BE e: rogercgl@live.co.uk t: 01691 777223 Bu3000

Cardiff University

Chadwicks (Mowbray Drive) Ltd

Carbon Alternatives

School of Engineering, Queen's Buildings, Cardiff CF24 3AA e: daviesaw@cardiff.ac.uk w: www.cardiff.ac.uk/engineering t: 02920 874314 Ed4000

Carpenter Oak Ltd

The Framing Yard, East Cornworthy, Totnes, Devon TQ9 7HF e: admin@carpenteroak.com w: www.carpenteroak.com t: 01803 732900

Carr Cotter & Naessens

32 South Terrace, Cork, County Cork, Republic of Ireland e: info@ccnarchitects.net w: www.ccnarchitects.net t: 00 353 21 484 7123 f: 00 353 21 484 7896 Ar2000

Carr Garden Buildings

19 Hurricane Way, Wickford, Essex SS11 8YB e: sales@carrgardenbuildings.co.uk w: www.carrgardenbuildings.co.uk t: 01268 561450

Cartledge Timber Frame

Fairfield Enterprise Centre, Lincoln Way, Fairfield Industrial Estate, Louth, Lincolnshire LN11 0LS e: ian@cartledgetimberframe.com w: www.cartledgetimberframe.com t: 01507 617799 f: 01507 617778 Bu6000, Ti1200, Ti1500, Ti2000

Cassidy + Ashton Group Ltd

7 East Cliff, Preston, Lancashire PR1 3JE e: davidparkinson@cassidyashton.co.uk w: www.cassidyashton.co.uk t: 01772 258356 Ar2000

Cassidy + Ashton Group Ltd 10 Hunters Walk, Canal Street, Chester CH1 4EB w: www.cassidyashton.co.uk t: 01244 402900

244 |

Timber 2020 Industry Yearbook

100 Mowbray Drive, Blackpool, Lancashire FY3 7UN e: eddie.wright@chadwicks-blackpool.co.uk w: www.chadwicks-blackpool.co.uk t: 01253 301253 f: 01253 302624 Bu1000, Fa1000, Jo2000, Pa7500, Ti7500

Champion, A W Ltd

2 Hartfield Crescent, Wimbledon, London SW19 3SD e: wimbledon@championtimber.com w: www.championtimber.com t: 020 8542 1606 De2000, Do3000, Mo4500, Mo5000, So6000

Champion, A W Ltd

109-123 Southlands Road, Bromley, Kent BR2 9QX e: bromley@championtimber.com w: www.championtimber.com t: 020 8460 6655 Cd1000, De2000, Mo5000, So6000, Ti7600

Champion, A W Ltd

272 - 274 High Street, Sutton, Surrey SM1 1PG e: sutton@championtimber.com w: www.championtimber.com t: 020 8642 8291 Cd1000, De2000, Mo4500, Mo5000, Ti7600

Champion, A W Ltd

385 Leatherhead Road, Chessington, Surrey KT9 2NQ e: chessington@championtimber.com w: www.championtimber.com t: 01372 847910 Cd1000, De2000, Mo4500, Mo5000, Ti7600

Champion, A W Ltd

Champion House, 205-9 Burlington Road, New Malden, Surrey KT3 4NB e: sales@championtimber.com w: www.championtimber.com t: 01932 359780 De2000, Md3000, Mo0500, Mo4500, Mo5000

Champion, A W Ltd

Curtis Road, Dorking, Surrey RH4 1EJ e: dorking@championtimber.com w: www.championtimber.com t: 01306 884418 Cd1000, De2000, Fl4000, Mo4500, Mo5000

Champion, A W Ltd

City Building Glasgow LLP

Champion, A W Ltd

Civil & Structural Engineering Services

Fircroft Way Industrial Estate, Edenbridge, Kent TN8 6EL e: edenbridge@championtimber.com w: www.championtimber.com t: 01732 864328 De2000, Mo0500, Mo4500, Mo5000, Ti7600 High Street, Claygate, Esher, Surrey KT10 0JW e: claygate@championtimber.com w: www.championtimber.com t: 01372 462407 Cd1000, De2000, Mo4500, Mo5000, Ti7600

Champion, A W Ltd

Moorfield Road, Slyfield Industrial Estate, Guildford, Surrey GU1 1RU e: guildford@championtimber.com w: www.championtimber.com t: 01483 510170 Cd1000, De2000, Mo4500, Mo5000, Ti7600

Champion, A W Ltd

Vickers Drive North, Weybridge, Surrey KT13 0YU e: weybridge@championtimber.com w: www.championtimber.com t: 01932 359780

Charnwood Timber Frame

20-22 Wenlock Road, London N1 7GU e: robhousden@me.com t: 07708 224879 Ar2000, Gl2000, Ti1500, Ti2000, Wi4000

Chart Stables

Chart House, Dencora Way, Ashford, Kent TN23 4FH e: enquiries@chartstables.co.uk w: www.chartstables.co.uk t: 01233 611123 f: 01233 645142

Chase Joinery Contracts Ltd

Unit 2, Kobe Nursery, Halstead Hill, Goffs Oak, Hertfordshire EN7 5NA e: enquiries@chasejoinery.co.uk w: www.chasejoinery.co.uk t: 01992 641515 f: 01992 641151 Fu4000, Jo4000, St3000, Wi3000, Wi4000

Chauncey's Floor Fitting Services

10 Victoria Road, St Philips, Bristol BS2 0UJ e: chris@chaunceysfit.co.uk t: 0117 972 5910 Fl4000, Fl6300

Chaunceys Timber Flooring

The Chapel, 9 Victoria Road, St Philips, Bristol, Avon BS2 0UJ e: sales@chauncey.co.uk w: www.chauncey.co.uk t: 0117 971 3131 f: 0117 971 2224 Fl4000

Chescoe Chartered Surveyors & Architects Ltd

The Studio, Alpenrose, Belmont Road, St Peter Port, Guernsey GY1 1PY, Channel Islands e: nchescoe@cwgsy.net w: www.chescoecharteredsurveyors.com t: 01481 713137 Su1000

Chris C Brown

Kinlet Bank, Kinlet, Cleobury Mortimer, Kidderminster, Worcs DY14 8HX e: chris.c.brown@btinternet.com t: 01299 841341

12 Edgefauld Avenue, Atlas Ind Estate, Springburn, Glasgow G21 4BB e: contact@citybuildingglasgow.co.uk w: www.citybuildingglasgow.co.uk t: 0141 287 0800 f: 0141 287 0802

Office of Public Works, Jonathan Swift Street, Trim, Co Meath C15 NX36, Republic of Ireland e: library@opw.ie w: www.opw.ie t: 00 353 1 647 6748 En2000

Civil & Structural Partnership Ltd Market House, Market Square, 84-86 North Street, Bo'ness, West Lothian EH51 9NE e: civilstruc@aol.com t: 01506 828008 f: 01506 828009 Ce2000, Co9100, En2000, Ti1200

Civil and Structural Engineering Shetland Ltd Griesta, Tingwall, Shetland ZE2 9SB e: info@caseshetland.co.uk w: www.caseshetland.co.uk t: 01595 840476 Bu3500, Ce2000, En2000, Ti1200

Clarke Matthews Ltd

18 Cardiff Road, Taffs Well, Cardiff CF15 7RE e: theoffice@clarkematthews.com w: www.clarkematthews.com t: 02920 253123 f: 02920 253133 Co7500, Co8800, Co9300, En2000, Ti1200

Clevetts Ltd Facade Consultancy West Midlands House, Gipsy Lane, Willenhall, West Midlands WV13 2HA e: mark.bs@clevetts.com w: www.clevetts.com t: 02380 890031

Clifton Structural Timber Ltd Brynfa Farm, Trelydan, Welshpool, Powys SY21 9HL e: martin@cstimber.co.uk w: www.cstimber.co.uk t: 01938 590330 Co9100, En2000

CLM Surveyors LLP

2(b) High Street, Camberley, Surrey GU15 3SX e: neil@clm.uk.com w: clm.uk.com t: 01276 21133

CMQ Consulting Engineers

11a Station Road, Slough, Berkshire SL1 6JJ e: christopher@cmqconsulting.com w: www.cmqconsulting.com t: 01628 617877 En2000

Co2 Timber Supplies

Unit 16, Walronds Park, Isle Brewers Lane, Isle Brewers, Taunton TA3 6QP e: stuart@co2timber.co.uk w: www.co2timber.co.uk t: 01460 281225 Cd1000

Cobb and Company

3rd Floor, 86-90 Paul Street, London EC2A 4NE e: fiona@ccoengineers.com w: www.ccoengineers.com t: 020 7101 4994

Citu Group Developments

Beeston Rd, Leeds, Yorkshire LS11 6AD e: jamesw@citu.co.uk w: www.citu.co.uk t: 0113 306 1319 Bu3000

www.trada.co.uk

TRADA Members

Coed Cymru

The Old Sawmill, Tregynon, Newtown, Powys SY16 3PL e: garethd@coedcymru.org.uk w: www.coedcymru.org.uk t: 01686 650777 Bu6800, Lo1000, Mo0500, Ti4000, Ti7600

Coen Holdings Ltd

Oranmore Industrial Estate, Deerpark, Oranmore, Co Galway, Republic of Ireland t: 00 353 91 795 400

Coleg Menai

Ffriddoedd Road, Bangor, Gwynedd LL57 2TP e: library@menai.ac.uk w: www.menai.ac.uk t: 01248 383329 f: 01248 370052 Ed4000

Collinson PLC t/a Collinson Construction

Riverside Industrial Park, Tan Yard Road, Catterall, Preston, Lancashire PR3 0HP e: jsalisbury@collinsonconstruction.co.uk w: www.collinson.co.uk t: 01995 607495

Complete Design Partnership Ltd

Charford Lodge, 1 Rock Hill, Bromsgrove, Worcestershire B61 7LH e: admin@cdpbroms.co.uk w: www.cdpbroms.co.uk t: 01527 832307 f: 01527 832711 Co4000, Co9100, En2000

Conisbee

Consulting Structural & Civil Engineers, 1-5 Offord Street, London N1 1DH e: design@conisbee.co.uk w: www.conisbee.co.uk t: 020 7700 6666 f: 020 7700 6686 En2000

Constructional Timber (Manufacturers) Ltd

Industry Road, Carlton Industrial Estate, Carlton, Barnsley, South Yorkshire S71 3PQ e: m.daws@constructionaltimber.com w: www.constructionaltimber.com t: 01226 727211 f: 01226 722198 Br2000, Gl1000, Gl2000, Lv1000, Ti2000

Constructs South West Ltd

Unit 2, Fothergill Business Park, Colley Lane, Bridgwater, Somerset TA6 5JJ e: info@constructssouthwest.co.uk w: www.constructssouthwest.co.uk t: 0800 228 9860 Ca0500

Cook Associates

Capital House, 3 Jubilee Way, Faversham, Kent ME13 8GD e: peter.cook@cook-design.com w: www.cook-design.com t: 01795 532834 f: 01795 535605 Ar2000, Co9100, En2000

Corbett & Tasker Ltd

Unit 8c, Canonbury Yard, New North Road, London N1 7BJ e: peter@corbett-tasker.com w: www.corbett-tasker.com t: 020 3869 1940 En2000

Countryside Properties Timber Frame Mortimer Rd, Narborough, Leicester, Leicestershire LE19 2GA e: dave.thacker@cpplc.com t: 0116 284 9670 f: 0116 284 9679 Bu3000, Ti2000

www.trada.co.uk

Cowan Consultancy Ltd

3 Turnberry House, The Links, 4400 Parkway, Solent Business Park, Fareham, Hampshire PO15 7FJ e: consultants@cowanconsult.co.uk w: www.cowanconsult.co.uk t: 01489 577488 f: 01489 579873 Ce2000, Co4000, Co9100, En2000, So1000

Cowley Timber & Partners Ltd

Unit 13 Abbotts Way, Newark Business Park, Newark, Nottinghamshire NG24 2EL e: mail@cowleytimber.co.uk w: www.cowleytimberwork.co.uk t: 01522 720022 f: 01522 723681 Bu8000, Cd1000, Gl2000, St8500, Ti2500

Craig McDowall Architectural Services Ltd

7 Poplar Crescent, Oakbank, Perth PH1 1HR e: info@craigmcdowall.co.uk w: www.craigmcdowall.co.uk t: 01738 560537 Ar2500

Cranwood Industries

Cubby Construction Ltd

Units H & L, Knights Drive, Kingmoor Park Central, Carlisle, Cumbria CA6 4SG e: sallyc@cubby.co.uk w: www.cubby.co.uk t: 01228 521284 f: 01228 591952

Cullinan Studio

5 Baldwin Terrace, Islington, London N1 7RU e: studio@cullinanstudio.com w: www.cullinanstudio.com t: 020 7704 1975 f: 020 7354 2739 Ar2000

Curryhills Civil Engineering Ltd 9 The Green, Edlesborough, Buckinghamshire LU6 2JF e: info@curryhillsconstruction.co.uk w: www.curryhillsconstruction.co.uk t: 01525 220542 f: 01525 220636 Bu3000, En2000

Cygnum Ltd

Milltown Industrial Estate East, Upper Dromore Road, Warrenpoint, Co Down BT34 3PN e: sales@cranwoodindustries.com w: www.cranwoodindustries.com t: 028 4175 9300

IDA Industrial Estate, Macroom, County Cork, Republic of Ireland e: info@cygnum.ie w: www.cygnum.ie t: 00 353 26 21100 f: 00 353 26 21199 Gl1000, Lv1000, St8500, Ti1500, Ti2000

Crocodile Timber Frames

Cygnum Ltd

Unit 62, Thornhill Road, South Marston, Swindon, Wiltshire SN3 4TA e: henry@crocodile.uk.com w: www.crocodile.uk.com t: 01793 821555 f: 01793 821666 Pa1000, St8000, Ti2000, Ti2500, Ti2700

Croft Structural Engineers

Clockshop Mews, Rear of 60 Saxon Road, London SE25 5EH e: phenry@croftse.co.uk w: www.croftse.co.uk t: 020 8684 4744 Co4000, Co9100, En2000, Ti1200

Crucis Designs Ltd

Suite 3, Business Centre, 8 Madeira Avenue, Leigh on Sea, Essex SS9 3EB e: aliceward@crucisdesigns.com w: www.crucisdesigns.com t: 01702 416114 Co9100, Co9200, En2000, Ti1200

CSW Cladding Ltd

Rownhams House, Betteridge Drive, Rownhams, Southampton, Hampshire SO16 8LS e: stewart@cswcladding.co.uk w: www.cladtekltd.co.uk t: 02382 148588

CT architect

5 Siskin Gardens, Paddock Wood, Tonbridge, Kent TN12 6XP e: chris.thomas2008@hotmail.co.uk t: 07506 072929 Ar2000

CTS Bridges Ltd

Abbey Road, Shepley, Huddersfield, West Yorkshire HD8 8BX e: enquiries@ctsbridges.co.uk w: www.ctsbridges.co.uk t: 01484 606416 f: 01484 608763 Br2000, De2000, St5000

Stowmarket Business Park, Ernest Nunn Road, Stowmarket, Suffolk IP14 2ED e: info@cygnum.co.uk w: www.cygnum.co.uk t: 01449 771782 f: 01449 774009 Gl1000, Lv1000, St8500, Ti1500, Ti2000

CZWG Architects LLP

17 Bowling Green Lane, London EC1R 0QB e: mail@czwgarchitects.co.uk w: www.czwg.com t: 020 7253 2523 f: 020 7250 0594 Ar2000

D

D A Ryland Structural Engineer

60 Hall Lane, Elmswell, Bury St Edmunds, Suffolk IP30 9LY e: david@extensions4homes.co.uk w: www.extensions4homes.co.uk t: 01953 853040 Co4000, Co9100, En2000

D C Blayney Associates

Compass House, Vision Park, Chivers Way, Histon, Cambridge, Cambridgeshire CB24 9AD e: derek.blayney@virgin.net w: www.dcblayneyassociates.co.uk t: 01223 257763 f: 01223 257800

D Kelly Design

Queen Anne House, 111 High Street, Fort William, Inverness-shire PH33 6DG e: admin@dkellydesign.co.uk w: www.dkellydesign.co.uk t: 01397 700999 f: 01397 700888 Ar2000, Ar2500

D.L. Hatfield Carpentry

Dannatt Johnson Architects

Unit 1 The Wireworks, 77 Great Suffolk Street, London SE1 0BU e: dja@djarchitects.co.uk w: www.djarchitects.co.uk t: 020 7357 7100 Ar2000

DAS Structures Ltd

Sunrise, Penhalvean, Redruth, Cornwall TR16 6TQ e: dereksmith1234@hotmail.co.uk t: 07779 112125 En2000

David Barrington Ltd

23 St Martins Street, Wallingford, Oxfordshire OX10 0AL e: office@davidbarringtonltd.com w: www.charteredbuildingconsultants.co.uk t: 01491 838296 f: 01491 838296 Su1000

David French Partnership 43 Guildford Street, Luton, Bedfordshire LU1 2NQ e: andrew@dfp.co.uk w: www.dfp.co.uk t: 01582 708000 f: 01582 708014

David McKeever Architect

12 Pannal Ash Grove, Harrogate, North Yorkshire HG2 0HZ e: dmc@davidmckeeverarchitect.co.uk w: www.davidmckeeverarchitect.co.uk t: 07896 046244 Ar2000

David Mee Architect

3 Cameron Square, Fort William, Inverness-shire PH33 6AJ e: dmee@davidmee-architect.co.uk w: www.davidmee-architect.co.uk t: 01397 700332 f: 01397 700224 Ar2000

David Morley Architects

18 Hatton Place, London EC1N 8RU e: info@dmarch.co.uk w: www.davidmorleyarchitects.co.uk t: 020 7430 2444 Ar2000

David Narro Associates

5 Viewfield Place, Stirling, Stirlingshire FK8 1NQ w: www.davidnarro.co.uk t: 01786 449562

David Narro Associates

24 James Morrison Street, Glasgow G1 5PE e: mail@davidnarro.co.uk w: www.davidnarro.co.uk t: 0141 552 6080 f: 0141 552 7418 Ce2000, Co9100, En2000

David Narro Associates

34-36 Argyle Place, Edinburgh, Lothian EH9 1JT e: mail@davidnarro.co.uk w: www.davidnarro.co.uk t: 0131 229 5553 f: 0131 229 5090 Ce2000, Co9100, En2000

David Norris Associates

8 Cumberland Street, Macclesfield, Cheshire SK10 1DD e: david@davidnorrisassociates.co.uk t: 01625 500151 Ar2500, Co4000, Su1000

83 Irthlingborough Road, Finedon, Northamptonshire NN9 5EJ e: dave.hatfield@btconnect.com t: 01933 381610 Bu3000 Timber 2020 Industry Yearbook

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TRADA Members

David Parker Architects Ltd

The Old Brewery Tap, 3 Shirburn Street, Watlington, Oxfordshire OX49 5BU e: mail@dparchitects.co.uk w: www.dparchitects.co.uk t: 01491 613066 f: 01491 614017 Ar2000, Ar2500, Co4000, He1000

David R Murray & Associates

150 St John's Road, Edinburgh, Lothian EH12 8AY e: drme@davidrmurray.co.uk w: www.davidrmurray.co.uk t: 0131 334 0765 f: 0131 316 4540 Ce2000, Co9100, Co9200, En1500, En2000

David Robert Ltd

Dempsey Dyer Ltd

Unit 11-13, Langthwaite Business Park, South Kirkby, Pontefract, West Yorkshire WF9 3AP e: sales@dempseydyer.co.uk w: www.dempseydyer.co.uk t: 01977 649641 f: 01977 649517 Bu5000, Do2500, Wi2000, Wi3000, Wi4000

Denmore Homes Ltd

Unit 2, Trico Warehouse, Skewfields Roundabout, Pontypool, Torfaen NP4 0XZ e: info@denmorehomes.co.uk w: denmorehomes.co.uk t: 01495 761040 Bu3000

The Office, Dene St Apartments, Dene St, Hexham, Northumberland NE46 1HA e: davidrobertltd@live.co.uk t: 07968 358909

Deotech

Davidson Timber UK Ltd

Department of Agriculture, Marine and Food

24 Nettlehome, Hatfield, Doncaster, South Yorkshire DN7 6QZ e: info@davidsontimber.co.uk w: www.davidsontimber.co.uk t: 01302 351635 f: 05600 756545 Cd1000, Co9200, Ti7700

Day & Co Construction

Newcotts Farm, North Newton, Bridgwater, Somerset TA7 0DQ e: greg@daylage.co.uk w: www.daylage.co.uk t: 01278 662000 Bu3000

Days Buildbase

Burrfields Road, Portsmouth, Hampshire PO3 5NA e: portsmouth@buildbase.co.uk w: www.buildbase.co.uk t: 023 9266 2261 f: 023 9266 6497 Do3000, Do5000, Ti7500, Ti7600, Ti7700

DC Architectural Services Ltd

The Barn, Partney Mill, Spilsby PE23 4PE e: dcarchitectural@btconnect.com t: 01790 752865

DDS (International) Ltd

Luffield House, Stadium Way, Eurolink Industrial Centre, Sittingbourne, Kent ME10 3SD e: team@dds.international w: www.staylegal.net t: 01795 471142 Te2000

Deancombe Farm

Deancombe Farm, Buckfastleigh, South Devon TQ11 0LZ e: hedgerfam@hotmail.com t: 01364 643794

De'Ath, Michael W MRICS

6 Manwood Avenue, Canterbury, Kent CT2 7AF e: motorman@talktalk.net t: 01227 464729

Deeside Timberframe Ltd

Spurryhillock Industrial Estate, Broomhill Road, Stonehaven, Aberdeenshire AB39 2NH e: info@deesidetimberframe.com w: www.deesidetimberframe.com t: 01569 767123 f: 01569 767766 Co9100, Ti1200, Ti1500, Ti2000

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55 Wyatt Road, Dartford, Kent DA1 4SN e: dxamone@btinternet.com t: 07957 697789

Agriculture House, 3 West Kildare Street, Dublin 2, Republic of Ireland e: info@coford.ie w: www.coford.ie t: 00 353 1 607 2085 As1000, Go2000, Re4000

Design & Maintain Ltd

21 Double Common, Charmouth, Dorset DT6 6PT e: office@designandmaintain.co.uk w: www.designandmaintain.co.uk t: 01297 561348

Design Engine Architects Ltd

The Studios, Coker Close, Winchester, Hampshire SO22 5FF e: mail@designengine.co.uk w: www.designengine.co.uk t: 01962 890111 f: 01962 890222 Ar2000, La9000

Design Engineering Workshop

Studio 114 | South Block, 60 Osborne Street, Glasgow G1 5QH e: info@designengineeringworkshop.co.uk w: www.designengineeringworkshop.co.uk t: 0141 438 0014 En2000

Design ID Consulting Ltd

13 Main Street, Hillsborough, County Down BT26 6AE e: jonathan@designid.co.uk w: www.designid.co.uk t: 028 9268 1055 Co9100, Co9200, En2000, Fu3000

Designcell Architecture

DHD Structures Ltd

The Hive, 6 Beaufighter Road, Weston-super-Mare, Somerset BS24 8EE e: duncan@dhdstructures.co.uk w: www.dhdstructures.co.uk t: 01934 411270 Co9100, Co9200, En2000, He1000, Re6000

Diamond Wood & Shaw Ltd

The Old School, Blaby Road, Enderby, Leicester, Leicestershire LE19 4AR e: mail@diamondwoodandshaw.co.uk w: www.diamondwoodandshaw.co.uk t: 0116 284 8989 f: 0116 284 8898 En2000

DIGNAN Tech Services

Cnon an eas, Glen Spean, Roy Bridge, Highland PH31 4AW e: david.dignan@dignantechservices.co.uk t: 01397 713838

Dixon Hurst Ltd

Heversham House, 20-22 Boundary Road, Hove, East Sussex BN3 4EF e: hove@dhk.co.uk w: www.dhk.co.uk t: 01273 421444 f: 01273 420008 Co4000, En2000

DMC Consulting Engineers Ltd 201 Stoke Newington Church Street, Stoke Newington, London N16 9ES e: mobile@dmcuk.biz w: www.dmcuk.biz t: 020 7275 8185 f: 020 7275 7908 En2000

DOA Consulting Structural Engineers

Ground Floor Offices, St Stephens House, Dogflud Way, Farnham, Surrey GU9 7UD e: doa@doasteng.co.uk w: www.doasteng.co.uk t: 01252 734898 En2000

Domus

3 Molesey Business Centre, Central Avenue, West Molesey, Surrey KT8 2QZ e: david.kong@domusgroup.com w: www.domusgroup.com t: 020 8481 9500 Fl3000, Fl4000

Donaghy and Dimond Architects

41 Francis Street, Dublin 8, Republic of Ireland e: info@donaghydimond.ie w: www.donaghydimond.ie t: 00 353 1 416 8132 f: 00 353 1 416 9730 Ar2000

Ely House, The Postern, Brecon, Powys LD3 9DF e: m.stratford@designcell.co.uk w: www.designcell.co.uk t: 01874 610873 f: 01874 610873 Ar2000

Donald McIntyre Design Ltd

Design-Life

Donald Millar Architecture

DG Timber Solutions Ltd

Doors Plus Ltd

Studio 5, Homelands, Higher Union Road, Kingsbridge, Devon TQ7 1EQ e: doug.wharf@design-life.co.uk t: 01548 854226 En2000 Unit 1 Hill Farm Estate, Irthlington Road, Little Addington, Northamptonshire NN14 4AS e: office@dgtimbersolutions.co.uk w: www.dgtimbersolutions.co.uk t: 01933 653818

Broadford, Stansbatch, Leominster, Herefordshire HR6 9LL e: donaldmcintyre@hotmail.com w: www.donaldmcintyredesign.com t: 01544 260271 En2000 8 Seton Place, Edinburgh, Midlothian EH9 2JT e: enquiries@donaldmillararchitecture.co.uk w: www.donaldmillararchitecture.co.uk t: 0131 667 0000 Ar2000 Unit 9, Dereham Business Park, Hurn Road, Dereham, Norfolk NR19 1WD e: davidburton@doorsplusltd.co.uk w: www.doorsplusltd.co.uk t: 01362 697152

Dorset Timber Engineering

Sandhills Farm, Holwell, Sherborne, Dorset DT9 5LE e: sales@dorsettimberengineering.co.uk w: www.dorsettimberengineering.co.uk t: 01963 23600

Dougall Baillie Associates 3 Glenfield Road, East Kilbride, Lanarkshire G75 0RA e: alan.ferns@dougallbaillie.com w: www.dougallbaillie.com t: 01355 266480 f: 01355 221991 En2000

Douglas Homes (Bristol) Ltd

212 Station Road, Kingswood, Bristol BS15 4XR t: 0117 960 2849 Ar2000

D'Ovidio Bros Ltd

Worth House, Worth, Wells, Somerset BA5 1LW e: craig@dovidiobros.com w: www.dovidiobros.com t: 01749 673984 Bu3000

Downes Associates

Unit 7, Cashel Business Centre, Cashel Road, Kimmage, Dublin 12, Republic of Ireland e: admin@downesassociates.ie w: www.downesassociates.ie t: 00 353 1 490 1611 f: 00 353 1 490 1651

dRMM Architects

Magdalen House, 136-148 Tooley St, London SE1 2TU e: mail@drmm.co.uk w: www.drmm.co.uk t: 020 7803 0777 Ar2000

Dryburgh Associates

Causewayhead, Kennoway, Leven, Fife KY8 5LB e: admin@dryburghassociates.co.uk t: 01333 352735 f: 01333 352835

D-Tech Design Ltd

Office 9, Banbridge Business Centre, 62 Scarva Road, Banbridge, Co. Down BT32 3QD e: mark@d-techdesign.com w: www.d-techdesign.com t: 028 4065 8130 f: 028 4062 0747 Ar2500, Co4000, Co9200, Ti1200

DTS - Kreunen Plastic Solutions

Hanzeweg 11, Lochem 7241 CR, Netherlands e: info@kreunenkunstoffen.nl w: www.dts-thresholds.com t: 00 31 573 438 410 f: 00 31 573 438 609 Jo4000

Dualchas Architecture Ltd

Fàs Building, Sabhal Mòr Ostaig, Sleat, Isle Of Skye IV44 8RQ e: info@dualchas.com w: www.dualchas.com t: 01471 833300 f: 01471 833322 Ar2000

Duchy Architecture

9 Dingles Close, Ponsanooth, Truro, Cornwall TR3 7RA e: darren@duchyarchitecture.co.uk w: duchyarchitecture.co.uk t: 07850 506350

www.trada.co.uk

TRADA Members

Duffy Chartered Engineers IRL

Jocelyn House, Jocelyn Street, Dundalk, Co. Louth, Republic of Ireland e: info@dce.ie w: www.dce.ie t: 00 353 42 935 1600 f: 00 353 42 935 1601 Co7000, Co8800, Co9100, Co9200, En2000

Dundas Building Company Design Office

E K Drawing Service Ltd

EDIFICA Ltd

E P T Partnership

Edinburgh College

23 Swinburne Avenue, Broadstairs, Kent CT10 2DP e: ekds.ltd@btconnect.com t: 01843 860312 f: 01843 860312 Ar2500

Bridgeness Road, Boness, West Lothian EH51 3SQ e: gordonkerr@dundas.co.uk t: 01506 823331 f: 01506 822590

Ty Cefn, Rectory Road, Canton, Cardiff CF5 1QL e: ept@eptpartnership.com w: www.eptpartnership.com t: 029 2034 4966 f: 029 2034 4942 Ar2000

Dunn Marino Associates Ltd

E. E. Smith Contracts Ltd

The Drying Shed, Balls Farm Road, Exeter, Devon EX2 9RA e: pmarino@dmal.co.uk w: www.dmal.co.uk t: 01392 422211 f: 01392 432066

DuPont (UK) Ltd

Bristol & Bath Science Park, Dirac Crescent, Emersons Green, Bristol, Avon BS16 7FR e: ian.anderson@dupont.com w: www.tyvek.co.uk t: 0844 406 8722 Ro2000, Ti2700, Va0500

Dwell Architecture & Design Ltd

E. y F. Gamiz

Edinburgh Structures

Ctra. Vitoria-Estella, 2, Sta. Cruz De Campezo (Álava) 1110, Spain e: gamiz@grupogamiz.com w: www.grupo-gamiz.com t: 00 34 945 255 045 Gl1000, Pa7700, Pa8200

dwell design Ltd

St Helena Farm, St Helena Lane, Plumpton Green, East Sussex BN7 3DH e: info@earthytimber.com w: www.earthytimber.com t: 01273 890607 Jo4000, Ki3000, Re1000, Sa6000, Ti1000

E & M West

5 Balustrade, London Road, Bath BA1 6QA e: james.allen@eandmwest.co.uk w: www.eandmwest.com t: 01225 461284 Co9100, Co9200, En2000, Ti1200

E & P Building Design

The Gables, Field Walk, Mildenhall, Bury St Edmunds, Suffolk IP28 7AH e: stuartac.harrison@talktalk.net w: www.eandpbuildingdesign.co.uk t: 01638 717379 f: 01638 714725 Ar2000, Co4000, Co7000, Co8800, Su2000

E A R Sheppard Consulting Civil & Structural Engineers Ltd

5 Chiswick Place, Eastbourne, Sussex BN21 4NH e: eastbourne@earsheppard.co.uk w: www.earsheppard.co.uk t: 01323 410478 f: 01323 412187 Ce2000, Co8800, Co9100, En2000, Ti1200

E C Forest Products (Sales)

Units 4-5, The Woodland Centre, Whitesmiths, Lewes, East Sussex BN8 6JB e: enquiries@ecforestproducts.com w: www.ecforestproducts.com t: 01825 872025 f: 01825 872205 Fl3500, Fl4000, Ma2500, Sa7000, Ti7600

www.trada.co.uk

Edinburgh Napier University

25 Morris Road, Clarendon Industrial Estate, Leicester, Leicestershire LE2 6AL e: enquiries@eesmith.co.uk w: www.eesmith.co.uk t: 0116 270 6946 f: 0116 270 1515 Bu3000, Jo4000

E.R.Verrall RIBA

E

350 West Granton Road, Edinburgh, Mid Lothian EH5 1QE e: malcolm.crombie@ed-coll.ac.uk w: www.ed-coll.ac.uk t: 0131 559 4190 Ed4000 School of Engineering & Built Environment, 10 Colinton Road, Edinburgh, Lothian EH10 5DT e: a.stupart@napier.ac.uk w: www.napier.ac.uk/fpri t: 0131 455 2831 f: 0131 455 2239 Co9100, Co9200, Ed4000, En2000, Re4000

The Old Post Office, Lewes Road, Scaynes Hill, Haywards Heath, West Sussex RH17 7PG e: studio@dwellarchitecture.com w: www.dwellarchitecture.com t: 01444 831800 f: 01444 220499

Cherry Tree Farm, Liberty Road, Newtown, Fareham, Hampshire PO17 6LD e: enquiries@dwell-design.co.uk w: www.dwell-design.co.uk t: 07801 880376 Ar2000

2 Carpenters Close, Manea, March, Cambridgeshire PE15 0JB e: alex@edifica.co.uk w: www.edifica.co.uk t: 07447 922297 Bu3000, Co3000, Co4000, Co5000, Co8800

3 Claygate Road, Ealing, London W13 9XG e: edward.verrall@btconnect.com w: www.edwardverrall.com t: 020 8354 4239 Ar2000

Earthy Timber

East Anglian Timber Trade Association 31 Eccles Road, Ipswich e: secretary@eatta.org w: www.eatta.co.uk t: 01473 682480 As1000

Eckersley O'Callaghan Structural Design

9th Floor, 236 Gray’s Inn Road, London WC1X 8HB e: brian@eckersleyocallaghan.com w: www.eocengineers.com t: 020 7354 5402

Eco Homes Direct Ltd

The Marina, Harleyford Estate, Henley Road, Marlow, Buckinghamshire SL7 2DX e: ian.campbell@ecohomesdirect.co.uk w: www.ecohomesdirect.co.uk t: 01628 484469 Ti2000

Ecospace Ltd

5A/6A Iliffe Yard, Kennington, London SE17 3QA e: lee@ecospacestudios.com w: www.ecospacestudios.com t: 020 7703 4004 f: 020 7708 4750

Eden Timber Frame

Flat 4, Tynefield Court, Penrith, Cumbria CA11 8HJ e: edentimberframe@gmail.com w: www.edentimberframe.co.uk t: 07582 728223 Ho3000, Ti1200, Ti1500

71 Tryst Park, Edinburgh, Midlothian EH10 7HB e: eric.mullen@btinternet.com

Edward Hunt & Co

Berkhamsted House, 121 High Street, Berkhamsted, Hertfordshire HP4 2DJ e: edward@edwardhunt.co.uk t: 01442 865011 f: 01442 870148 Ar2000

Edward Parsley Associates

West End Barn, The Street, Rayne, Braintree, Essex CM77 6RY e: info@epadesign.co.uk w: www.epadesign.co.uk t: 01376 349929 f: 01376 349928 Ar2500, Co9100, Co9200, En2000

Egoin

Astei, Ea 48287, Spain e: eneko@egoin.co.uk w: www.uk.egoin.com t: 00 34 946 276 000 Ti2000

Egoin UK Timber Construction

36 St Mary's Street, Edinburgh EH1 1SX e: eneko@egoin.co.uk w: uk.egoin.com t: 07981 509724 Bu8000, En2000, Gl1000, Pa8200, Ti2000

Eldred Geotechnics Ltd

11A Woodside, Orpington, Kent BR6 6JR e: mail@eldreds-geo.co.uk w: www.eldreds-geo.co.uk t: 01689 869406 En2000

Elite Systems GB Ltd

Bedford Street, Westgate, Cleckheaton, West Yorkshire BD19 5EA e: marcus@elitesystemsgb.co.uk w: www.elitesystemsgb.co.uk t: 01274 873232 f: 01274 877779 Ti2000

Elite Timber Homes

Elite House, Exchange Road, North Hykeham, Lincoln, Lincolnshire LN6 3JZ e: enquire@elitetimberhomes.co.uk w: www.elitetimberhomes.co.uk t: 01522 705358 Ti2000

Elliot Payne Ltd

Unit 13c Canonbury Yard, 190a New North Road, London N1 7BJ e: office@elliotpayne.co w: www.elliotpayne.co t: 020 3582 6604

Elliott & Company

9 Forrest Road, Edinburgh EH1 2QH e: structures@ecoeng.co.uk w: www.ecoeng.co.uk t: 0131 220 2486 Co9100, En2000

Elliott Off-Site Building Solutions Westland House, 9 Cliffe Park Way, Morley, Leeds, Yorkshire LS27 0RY e: construction@elliottuk.com w: www.elliottuk.com t: 01274 863221 f: 01274 861582 Bu3000

Elliott Wood Partnership Ltd

241 The Broadway, London SW19 1SD e: info@elliottwood.co.uk w: www.elliottwood.co.uk t: 020 8544 0033 f: 020 8544 0066 Co4000, En2000

Ellis and Moore Consulting Engineers

2nd Floor, Sovereign House, 1 Albert Place, Finchley, London N3 1QB e: philip.deane@ellisandmoore.com w: www.ellisandmoore.com t: 020 7281 4821 f: 020 7263 6613 Co7000, En2000, He1000, Su1000, Ti1200

EMS Design Ltd

Unit G6, Sandford Industrial Park, Sandford, Whitchurch, Shropshire SY13 2AN e: emsdesign@live.co.uk t: 01948 841250

Encasement Contracts Ltd

Unit SF1, Parkfield Business Centre, Park Street, Stafford, Staffordshire ST17 4AL e: alan@encasementcontracts.co.uk w: www.encasementcontracts.co.uk t: 01785 223253 Bu3000

Enfield Speciality Doors

Alexandra Road, Enfield, Middlesex EN3 7EH e: sales@enfielddoors.co.uk w: www.enfielddoors.co.uk t: 020 8805 6662 f: 020 8443 1290 Do2000, Do2500, Do3000, Do4500, Do5000

Engenuiti Ltd

3rd Floor, The Pavilion, 1 Newham Row, London SE1 3UV e: contact@engenuiti.com w: www.engenuiti.com t: 020 7089 5760 Co9100, En2000

engineersHRW

Unit 10, Blue Lion Place, 237 Long Lane, London SE1 4PU e: mail@engineers-hrw.co.uk w: www.ehrw.co.uk t: 020 7407 9575 Co9100, En2000

English Brothers Bespoke Projects Ltd Salts Road, Walton Highway, Wisbech, Cambridgeshire PE14 7DU e: jay.hubbard@englishbrothers.co.uk t: 01945 427985

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TRADA Members

English Heritage Buildings LLP

Coldharbour Farm Estate, Woods Corner, East Sussex TN21 9LQ e: sales@ehbp.com w: www.ehbp.com t: 01424 838643 f: 01424 838606 Bu3000, Bu6800, Ho3000, Ti2000

English Woodlands Timber Ltd

ERW Joinery Ltd

Renovation House, Skippers Lane, Skippers Lane Industrial Estate, Middlesborough, Cleveland TS6 6HA e: info@erwltd.co.uk w: www.erwltd.co.uk t: 01642 456167 f: 01642 462708 Do2500, Do5000, Jo4000, Re6000, Wi2000

Cocking Sawmills, Cocking, Midhurst, West Sussex GU29 0HS e: sales@englishwoodlandstimber.co.uk w: www.englishwoodlandstimber.co.uk t: 01730 816941 f: 01730 816941 Be1000, Cd1000, Co5500, De2000, Ti7600

Estimators Online Ltd

Enterprise Ireland

6a Randolph Place, Edinburgh, Midlothian EH3 7TE e: hamish@etiveconsulting.co.uk t: 0131 226 6746 En2000

Waterford Industrial Estate, Cork Road, Waterford X91 K46F, Republic of Ireland e: paddy.byrne@enterprise-ireland.com w: www.enterprise-ireland.com t: 00 353 8766 85723

Entrust Support Services Ltd

The Riverway Centre, Stafford, Staffordshire ST16 3TH e: gary.knapper@staffordshire.gov.uk w: www.staffordshire.gov.uk t: 01785 277595 f: 01785 277727 Ar2000, Co4000, En2000, Lo1000, Su2000

Envirograf

Envirograf House, Barfrestone, Dover, Kent CT15 7JG e: sales@envirograf.com w: www.envirograf.com t: 01304 842555 f: 01304 842666 Bu6800, Co1500, Do4500, Fl7000, Pa8000

EPR Architects Ltd

30 Millbank, London SW1P 4DU e: architects@epr.co.uk w: www.epr.co.uk t: 020 7932 7600 f: 020 7932 7601 Ar2000

Equus Projects & Technologies Ltd Arquen House, 4-6 Spicer Street, St Albans, Hertfordshire AL3 4PQ e: ajohnson@equuspt.com w: www.equuspt.com t: 07747 615618

Ergodomus Timber Engineering Loc. Fratte, 18/4 - Pergine Valsugana, Trento 38057, Italy e: franco@ergodomus.it w: www.ergodomus.it/en t: 00 39 461 510932 Co9200, En2000

Eric Oberlander Architect

5a York Road, North Berwick, East Lothian EH39 4LX e: mail@ericoberlanderarchitect.co.uk w: www.ericoberlanderarchitect.co.uk t: 01620 807528 Ar2000

Eric Wright Group

Sceptre House, Sceptre Way, Bamber Bridge, Preston, Lancashire PR5 6AW e: info@ericwright.co.uk w: www.ericwright.co.uk t: 01772 698822 f: 01772 309412 En2000

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Timber 2020 Industry Yearbook

196 Deansgate, Manchester M3 3WF e: steve@estimators-online.com w: www.estimators-online.com t: 0161 286 8601 f: 0161 428 5788

Etive Consulting Engineers Ltd

EURBAN

3rd Floor, 59 Lafone Street, London SE1 2LX w: eurban.co.uk t: 020 7378 8476 Bu3000, Cl1000, Co9100, Co9200, Gl2000

Evolve

FAIRHURST

Finewood Marketing (UK) Ltd

FAIRHURST

Fiona Darey Architecture & Interiors

1 Arngrove Court, Barrack Road, Newcastle upon Tyne NE4 6DB e: newcastle@fairhurst.co.uk w: www.fairhurst.co.uk t: 0191 221 0505 f: 0844 381 4412 En2000 88 Queens Road, Aberdeen AB15 AYQ t: 01224 321222 f: 01224 323201

FAIRHURST

225 Bath Street, Glasgow, Lanarkshire G2 4GZ e: enquiries@fairhurst.co.uk w: www.fairhurst.co.uk t: 0141 204 8800 f: 0141 204 8801 Co5000, Co8800, En2000, En3000

FAIRHURST

Clifton Heights, Triangle West, Clifton, Bristol BS8 1EJ e: bristol@fairhurst.co.uk w: www.fairhurst.co.uk t: 0117 925 0259 f: 0844 381 4412 Co5000, Co9100, En2000

20 Baltic Street, London EC1Y 0UL e: info@evolveuk.biz w: www.evolveuk.biz t: 020 7251 6888 f: 020 7490 7973 Ce2000, Co9100, Co9200, En2000, Ti1200

FAIRHURST

Exact Construction

FAIRHURST

12 Herdwick Close, Kinsnorth, Ashford, Kent TN25 7FH e: kevin@exactconstruction.co.uk w: www.exactconstruction.co.uk t: 03334 440994 f: 01233 500912 Bu3000

Expedition Engineering

The Clove Building, 4 Maguire Street, London SE1 2NQ e: info@expedition.uk.com w: www.expedition.uk.com t: 020 7307 1000 f: 020 7307 1001 En2000

Exterior Decking

Dropshort Farm, College Road North, Aston Clinton, Buckinghamshire HP22 5EZ e: office@exteriordecking.co.uk w: www.exteriordecking.co.uk t: 01494 711800 Ca0500, De2000, Ha7000, La9000, Ti7600

F

Faber Technical Ltd

Etive House, Beechwood Business Park, Inverness IV2 3BW e: inverness@fairhurst.co.uk w: www.fairhurst.co.uk t: 01463 724544 Westerton Of Craigie, Southampton Road, Dundee, Tayside DD4 7PN e: dundee@fairhurst.co.uk w: www.fairhurst.co.uk t: 01382 453300 f: 0844 381 4412 Co4000, Co8800, Co9100, En2000

Farrow Walsh Consulting

Second Floor, 62 Highcross Street, Leicester, Leicestershire LE1 4NN e: chris@farrowwalsh.co.uk w: www.farrowwalsh.co.uk t: 0116 285 3773 f: 0116 285 3778

Feilden Clegg Bradley Studios

Bath Brewery, Toll Bridge Road, Bath BA1 7DE e: bath@fcbstudios.com w: www.fcbstudios.com t: 01225 852545 f: 01225 852528 Ar2000

Fidler Associates Ltd

31 Hillside Road, Northwood, Middlesex HA6 1PY e: mikefidler@blueyonder.co.uk t: 01923 840482 f: 01923 840483 Co7000, Co8800, En2000, Su1000

Austin House, 43 Poole Road, Bournemouth, Dorset BH4 9DN e: info@fabertechnical.co.uk w: www.fabertechnical.co.uk t: 01202 761370 f: 01202 765885 Ar2500, Co4000

Field Architecture Ltd

Fabric Flare Solutions Ltd

Assets, Transportation and Environment, Property S, Bankhead Central, 1 Bankhead Park, Glenrothes, Fife KY7 6GH e: diarmid.mclachlan@fife.gov.uk t: 03451 555555 ext 446817 Lo1000

Gosford Road, Beccles, Suffolk NR34 9QP e: info@fabricflaresolutions.co.uk w: www.fabricflare.co.uk t: 01502 711211 f: 01502 711993 Co1700, Fi7000, Fl1000, Pa4000, Te2000

11 Newton Road, Lewes, East Sussex BN7 2SH e: keir.black@fieldarchitecture.co.uk w: www.fieldarchitecture.co.uk t: 07930 385958 Ar2000

Fife Council

Maritime House, Basin Road North, Hove, East Sussex BN41 1WR e: info@finewoodmarketing.com w: www.finewoodmarketing.com t: 01273 729988 f: 01273 729933 Do2000, Ha7000, Mo4500, Ti0900, Ve1000

1 Seymour Road, Bath BA1 6DY e: fdarey@fda-i.com w: fda-i.com t: 07966 441820 Ar2000

FIRA International Ltd

Maxwell Road, Stevenage, Hertfordshire SG1 2EW e: info@fira.co.uk w: www.fira.co.uk t: 01438 777700 f: 01438 777800 As1000, Ce1000, Co5000, Co7500, Re4000

Five Oak Projects Ltd

Poultry Farm, Hyde Road, Long Sutton, Hampshire RG29 1SS e: oli@fiveoakprojects.com w: www.fiveoakprojects.com t: 07813 081202

Fleming Buildbase

Crowness Crescent, Hatson Industrial Estate, Kirkwall, Orkney KW15 1GJ e: orkney@buildbase.co.uk w: www.buildbase.co.uk t: 01856 875725 f: 01856 875735 Bu1000, Jo2000, Ti7500

Fleming Buildbase

North Deeside Road, Banchory, Kincardineshire AB31 5YR e: banchory@buildbase.co.uk w: www.buildbase.co.uk t: 01330 820118 f: 01330 820119 Bu1000, Jo2000, Ti7500

Fleming Buildbase

Shore Street, Inverness IV1 1NY e: inverness@buildbase.co.uk w: www.buildbase.co.uk t: 01463 233013 f: 01463 220794 Bu1000, Jo2000, Ti7500

Fleming Buildbase

Silverburn Place, Bridge Of Don, Aberdeen AB23 8EG e: aberdeen@buildbase.co.uk w: www.buildbase.co.uk t: 01224 258200 f: 01224 825377 Bu1000, Jo2000, Ma2500, Ti7500

Fleming Buildbase

Wood Street, Grangemouth, Stirlingshire FK3 8LH e: grangemouth@buildbase.co.uk w: www.buildbase.co.uk t: 01324 665444 f: 01324 485490 Ma2500, Ti7500, Jo2000

Fleming Buildbase - Doors & Windows

Wood Street, Grangemouth, Stirlingshire FK3 8LH e: grangemouth@buildbase.co.uk w: www.buildbase.co.uk t: 0870 240 3789 Jo2000

www.trada.co.uk

TRADA Members

Fleming Buildings Ltd

23 Auchinloch Road, Lenzie, Glasgow, Strathclyde G66 5ET e: office@fleming-buildings.co.uk w: www.fleming-buildings.co.uk t: 0141 776 1181 f: 0141 775 1394 Bu3000, Bu6800, Ti2000

Fleming Homes Ltd

Station Road, Duns TD11 3HS e: enquiries@fleminghomes.co.uk w: www.fleminghomes.co.uk t: 01361 883785 Ti1200, Ti2000

Flight Timber Products Ltd

Earls Colne Business Park, Earls Colne, Colchester, Essex CO6 2NS e: sales@flighttimber.uk w: www.flighttimber.uk t: 01787 222336 St9000, Ti1500, Ti2000, Ti2700, Tr4000

Flitcraft Ltd

Tarnacre Hall Mews, Tarnacre Lane, St Michaels, Preston, Lancashire PR3 0SZ e: enquiries@flitcraft.co.uk w: www.flitcraft.co.uk t: 01995 679444 Ti2500

Flooring Forensics

The Limes, The Street, Crowmarsh Gibbon, Oxfordshire OX10 8HF e: nealinwood@flooringforensics.net w: www.flooringforensics.net t: 01491 598468 f: 0870 4605901

FLUID Structural Engineers

Second Floor, 21 St George's Road, London SE1 6ES e: david@fluidstructures.com w: www.fluidstructures.com t: 020 7820 7766 f: 020 7582 7848 Co4000, Co9100, Co9200, En2000

Forbes Leslie Network

Studio 7, 19 Marine Crescent, Glasgow G51 1HD e: info@flnconsult.com w: www.flnconsult.com t: 01292 267992 f: 01292 611652 Ce2000, Co9100, Co9200, En1500, En2000

Forest Hill Design

The Office, Marsden Gate Farm, Sowood, Halifax, West Yorkshire HX4 9LD e: mark@foresthilldesign.co.uk w: www.foresthilldesign.co.uk t: 01422 311170 Co4000, Co9100, Co9200, Ti1200, Ti1500

Forest Service, DAERA

Inishkeen House, Killyhevlin Industrial Estate, Enniskillen, Co. Fermanagh BT74 4EJ e: michael.fairgrieve@daera-ni.gov.uk w: www.forestserviceni.gov.uk t: 0300 200 7852 Ti4000

Format Engineers Ltd

146 Walcot Street, Bath, Avon BA1 5BL e: sm@formatengineers.com w: www.formatengineers.com t: 07979 810890 En2000

Forth Valley College

Grangemouth Road, Falkirk, Stirlingshire FK2 9AD e: james.hughes@forthvalley.ac.uk w: www.forthvalley.co.uk t: 01324 403000 Ed4000

www.trada.co.uk

Foster + Partners

Riverside, 22 Hester Road, London SW11 4AN e: info@fosterandpartners.com w: www.fosterandpartners.com t: 020 7738 0455 f: 020 7738 1107/08 Ar2000

Foxborough Homes Ltd

Aspen House, 31a Church Street, Braunston, Rutland LE15 8QT e: charlie@foxboroughhomes.co.uk t: 07724 548852

Frame UK

Jenson House, Cardrew Industrial Estate, Redruth, Cornwall TR15 1SS e: enquiries@framehomes.co.uk w: www.frameuk.com t: 01209 310560 f: 01209 310561 Bu7000, Gl2000, Ti2000, Ti2700, Tr4000

Frametech Essex Ltd

3 Shepard Close, Leigh on Sea, Essex SS9 5YR e: frametechessex@gmail.com w: www.frametech-essex.co.uk t: 07764 656731 f: 01702 527269

FrameWork Synergies Ltd

Synergies House, 76 Laburnum Crescent, Kidlington, Oxford OX5 1HB e: alan@fwsl.co.uk w: www.fwsl.co.uk t: 0800 085 3341 Ti1200

Francis Bradshaw Partnership

Bank Chambers, 4-6 Church Street, Wilmslow, Cheshire SK9 1AU e: wilmslow@fbpconsulting.co.uk w: www.fbpconsulting.co.uk t: 01625 548551 f: 01625 548552 Co4000, Co8800, Co9100, Co9200, En2000

Frederick Gibberd Partnership

117-121 Curtain Road, London EC2A 3AD e: studio@gibberd.com w: www.gibberd.com t: 020 7739 3400 f: 020 7739 8948 Ar2000

FRILO Software GmbH

Stuttgarter StraĂ&#x;e 40, Stuttgart 70469, Germany e: info@frilo.eu w: www.frilo.eu t: 00 49 71181 0020 f: 00 49 711 85 8020 Co9100, En2000, So1000

FTF Designs LTD

49 Hartford Road, Bexley, Kent DA5 1NL e: info@FTFdesigns.co.uk w: www.FTFDesigns.co.uk t: 07824 777541 En2000

Fulham Timber Merchants Ltd 6 Prince Georges Rd, Colliers Wood, London SW19 2PX e: orders@fulhamtimber.co.uk w: www.fulhamtimber.co.uk t: 020 8685 5340 f: 020 8685 5341

Fulham Timber Merchants Ltd

Unit 9, Ellerslie Square Industrial Estate, London SW2 5DZ e: orders@fulhamtimber.co.uk w: www.fulhamtimber.co.uk t: 020 7738 3268 f: 020 7737 7825 De2000, Fl4000, Ha7000, Pa7500, So6000

Furness College

Channelside, Barrow-in-Furness, Cumbria LA14 2PJ e: info@furness.ac.uk w: www.furness.ac.uk t: 01229 825017 Ed4000

Furness Partnership Ltd

20 Britton Street, London EC1M 5TX e: m.wilcock@furnesspartnership.com w: www.furnesspartnership.com t: 020 7490 4353 f: 020 7490 4354 Co9100, Co9200, En2000, Ti1200

Fyntons Ltd

GCTF Ltd (General Construction & Timber Frame) Unit 4 Surrey Sawmills, Wrecclesham Hill, Farnham, Surrey GU10 4JX e: info@gctf.co.uk w: www.gctf.co.uk t: 01252 217056 Bu3000, Bu6800, Cj1000, Ti1200, Ti2500

GEM Joinery

Althone Road, Longford, Republic of Ireland e: info@gemjoinery.ie w: www.gemjoinery.ie t: 00 353 43 334 5217 f: 00 353 43 41854 Jo4000

Solopark Trading Estate, Station Road, Pampisford, Cambridge CB22 3HB e: sales@fyntons.co.uk w: www.fyntons.co.uk t: 01223 837106 f: 01223 830195 Do2500, Jo4000, Wi2000

Geo. Oliver & Son

G

Geoff Crowther Architects Ltd

G & S Specialist Timber

The Workshop, Snuff Mill Lane, Stainton, Penrith, Cumbria CA11 0ES e: info@toolsandtimber.co.uk w: www.toolsandtimber.co.uk t: 01768 891440 f: 01768 891443 Sa6000, Sa7000, St6000, Ti7600, To0500

G A P Ltd

7 Arrowsmith Court, Station Approach, Broadstone, Dorset BH18 8AX e: bob.godsell@gapltd.eu.com w: www.gapltd.eu.com t: 01202 600900 f: 01202 601900 En2000

G C Robertson & Associates Ltd

The Green, St. Boswells, Melrose, Scottish Borders TD6 0ET e: oliver.stboswells@hotmail.com w: www.stboswells-joiners.com t: 01835 822100 Ca0500, Cj1000, Ga4000, Jo1000, Re3000 27 Bulwer Street, Shepherds Bush, London W12 8AR e: geoff@gc-a.co w: www.gc-a.co t: 020 8811 8000 Ar2000, Co8800, Ti1200

Gerry Robb Architectural Design Services

Bridgend, Bridgeview Road, Aboyne, Aberdeenshire AB34 5HB e: info@robbkeirdesign.co.uk t: 01339 886359 f: 01339 885280 Ar2000, Ar2500

G-frame Structures

Unit B2, Beckerings Business Park, Lidlington, Bedfordshire MK43 0RD e: office@g-frame.co.uk w: www.g-frame.co.uk t: 01525 288022 Bu3000, Bu8000, Gl1000

60 High Street, Wickham Market, Woodbridge, Suffolk IP13 0QU e: engineers@gcrobertson.co.uk w: www.gcrobertson.co.uk t: 01394 384887 f: 01394 380739 Co9100, Co9200, En2000

Ghana Forestry Commission

Gabriel Gheorghita Consulting Engineers Ltd

Ghana Forestry Commission

Alltwen, Penrhyndeudraeth, Gwynedd LL48 6DL e: gabriel@gheorghita.plus.com t: 01766 238010 f: 01766 238010

Timber Industry Development Division, PO Box 738, Takoradi, Ghana e: info@tidd.fcghana.com w: www.ghanatimber.org t: 00 233 3122924/24585 f: 00 233 3122837/23339

Garden Trellis Co Ltd, The

Ghana Forestry Commission

Garnham Wright Associates

Gibbs & Dandy

355A Old Road, Clacton-on-Sea, Essex CO15 3RQ e: info@gardentrellis.co.uk w: www.gardentrellis.co.uk t: 01255 688361 f: 01255 688362 De2000, Fe2000, Ga4000, Jo5000, La7000 Miles Common, Semley, Shaftesbury, Dorset SP7 9JX e: mail@garnhamwright.co.uk w: www.garnhamwright.co.uk t: 01747 852584 f: 01747 855605 Ar2000

GB Consulting

86 Commercial End, Swaffham Bulbeck, Cambridge, Cambridgeshire CB25 0NE e: gballard@gbg.co.uk t: 01223 812464 Co4000

Achimota Forest (opp Gimpa), West Legon, PO Box MB 434, Accra, Ghana e: info@hq.fcghana.com w: www.ghanatimber.org t: 00 233 21221315 f: 00 233 21220818

Unit 4, Granard Business Centre, Bunns Lane, Mill Hill, London NW7 2DZ e: tiddlondon@ghanatimber.org w: www.ghanatimber.org t: 020 8906 9560 f: 020 8906 9570 As1000, Go2000, Pl1000, Ti0500, Va1000 2 Nuffield Road, St Ives, Huntingdon, Cambridgeshire PE27 3LX e: stives@gibbsanddandy.com w: www.gibbsanddandy.com t: 01480 499666 f: 01480 499677

Gibbs & Dandy

11 Vulcan Way, Eaton Socon, St Neots, Cambridgeshire PE19 8TS e: stneots@gibbsanddandy.com w: www.gibbsanddandy.com t: 01480 224900 f: 01480 224924 Timber 2020 Industry Yearbook

| 249

TRADA Members

Gibbs & Dandy

Gibbs & Dandy

Gibbs & Dandy

Gibbs & Dandy

65-71 Grove Vale, East Dulwich, London, Greater London SE22 8EQ e: eastdulwich@gibbsanddandy.com w: www.gibbsanddandy.com t: 020 8299 4131 f: 020 8693 7000 112 Richardshaw Lane, Pudsey, West Yorkshire LS28 6BN e: pudsey@gibbsanddandy.com w: www.gibbsanddandy.com t: 0113 255 6921 f: 0113 220 9128

Gibbs & Dandy

176 Widemarsh Street, Hereford, Herefordshire HR4 9HN e: hereford@gibbsanddandy.com w: www.gibbsanddandy.com t: 01432 265544 f: 01432 352254

Gibbs & Dandy

226 Dallow Road, Luton LU1 1YB e: luton@gibbsanddandy.com w: www.gibbsanddandy.com t: 01582 798798 f: 01582 798799

Gibbs & Dandy

462 Bath Road, Slough, Berkshire SL1 6BQ e: slough@gibbsanddandy.com w: www.gibbsanddandy.com t: 01628 600743 f: 01628 600744

Gibbs & Dandy

Albany Road, Market Harborough, Leicestershire LE16 7QG e: marketharborough@gibbsanddandy.com w: www.gibbsanddandy.com t: 01858 465501 f: 01858 466202

Gibbs & Dandy

Barkers Lane, Bedford, Bedfordshire MK41 9RT e: bedford@gibbsanddandy.com w: www.gibbsanddandy.com t: 01234 244700 f: 01234 244800

Gibbs & Dandy

Bryggen Road, North Lynn Industrial Estate, Kings Lynn, Norfolk PE30 2HZ e: kingslynn@gibbsanddandy.com w: www.gibbsanddandy.com t: 01553 776666 f: 01553 769197

Gibbs & Dandy

Chadwicks, 100 Mowbray Drive, Blackpool, Lancashire FY3 7UN e: info@chadwicks-blackpool.co.uk w: www.chadwicks-blackpool.co.uk t: 01253 301253 f: 01253 302624

Gibbs & Dandy

Crusader Close, Gillingham, Kent ME8 0QQ e: gillingham@gibbsanddandy.com w: www.gibbsanddandy.com t: 01634 388241 f: 01634 379812

Gibbs & Dandy

Dukeries Industrial Estate, Claylands Avenue, Worksop, Nottinghamshire S81 7DJ e: worksop@gibbsanddandy.com w: www.gibbsanddandy.com t: 01909 481241 f: 01909 501556

250 |

Timber 2020 Industry Yearbook

Farnborough Street, Farnborough, Hampshire GU14 8AG e: farnborough@gibbsanddandy.com w: www.gibbsanddandy.com t: 01252 541131 f: 01252 546234 Finmere Road, Eastbourne, East Sussex BN22 8QJ e: eastbourne@gibbsanddandy.com w: www.gibbsanddandy.com t: 01323 725121 f: 01323 738879

Gibbs & Dandy

Fitzherbert Road, Farlington, Portsmouth, Hampshire PO6 1RJ e: portsmouth@gibbsanddandy.com w: www.gibbsanddandy.com t: 023 9237 3121 f: 023 9221 0472

Gibbs & Dandy

Great Western Road, Dorchester, Dorset DT1 1RZ e: dorchester@gibbsanddandy.com w: www.gibbsanddandy.com t: 01305 264401 f: 01305 269844

Gibbs & Dandy

Gunhills Lane, Amthorpe, Doncaster, South Yorkshire DN3 3EB e: doncaster@gibbsanddandy.com w: www.gibbsanddandy.com t: 01302 834933 f: 01302 831665

Gibbs & Dandy

Longwall Avenue, Queens Drive Ind Estate, Nottingham, Nottinghamshire NG2 1LP e: nottingham@gibbsanddandy.com w: www.gibbsanddandy.com t: 0115 986 5252 f: 0115 986 3868 Bu1000, Jo2000, Pa7500, Pr1000, Ti7500

Gibbs & Dandy

Manor Mills, Kings Mill Lane, Huddersfield, Yorkshire HD1 3AW e: huddersfield@gibbsanddandy.com w: www.gibbsanddandy.com t: 01484 514360 f: 01484 430534

Gibbs & Dandy

Gibbs & Dandy

Telford Place, Crawley, West Sussex RH10 1TE e: crawley@gibbsanddandy.com w: www.gibbsanddandy.com t: 01293 533133 f: 01293 515040

Gibbs & Dandy

Telford Way, Kettering, Northamptonshire NN16 8UN e: kettering@gibbsanddandy.com w: www.gibbsanddandy.com t: 01536 515155 f: 01536 516555

Gibbs & Dandy

Trowel House, Coronation Road, High Wycombe, Buckinghamshire HP12 3RX e: highwycombe@gibbsanddandy.com w: www.gibbsanddandy.com t: 01494 521100 f: 01494 462418

Gibbs & Dandy

Unit 2, Elliott Road, Howe Industrial Estate, Bournemouth, Dorset BH11 8JW e: bournemouth@gibbsanddandy.com w: www.gibbsanddandy.com t: 01202 576311 f: 01202 572038

Gibbs & Dandy

Unit 6-8, Monument Way East, Woking, Surrey GU21 5LZ e: woking@gibbsanddandy.com w: www.gibbsanddandy.com t: 01483 763661 f: 01483 714079

Gibbs Timber Frame Ltd

Colemans Farm, Colemans Lane, Porchfield, Isle of Wight PO30 4LX e: sales@gibbstimberframe.co.uk w: www.gibbstimberframe.co.uk t: 01983 522188 f: 01983 522189 Bu6000, Ti1500, Ti2000, Ti2500, Tr4000

Gilmour & Aitken

Milton Sawmill, Auchincarroch Road, Jamestown, Alexandria, Dumbartonshire G83 9EY e: sales@gilmouraitken.com w: www.gilmouraitken.com t: 01389 752333 f: 01389 755659 Mo4500, Sa7000, Sa8000, Ti7600, Ti7700

Reading Road, Henley-on-Thames, Oxfordshire RG9 1AS e: henley@gibbsanddandy.com w: www.gibbsanddandy.com t: 01491 575757 f: 01491 574639

Ginway Construction Ltd

Gibbs & Dandy

Giraffe Engineering

Saint-Gobain House, Binley Business Park, Coventry CV3 2TT e: robert.williams@gibbsanddandy.com w: www.gibbsanddandy.com t: 024 7643 8400 f: 024 7656 0617

Gibbs & Dandy

St Thomas Road, South Wigston, Leicester, Leicestershire LE18 4TA e: leicester@gibbsanddandy.com w: www.gibbsanddandy.com t: 0116 278 2352 f: 0116 247 7122

Gibbs & Dandy

St Thomas's Road, Spalding, Lincolnshire PE11 2XY e: spalding@gibbsanddandy.com w: www.gibbsanddandy.com t: 01775 725571 f: 01775 710297

57 St. Margaret's Avenue, Luton, Bedfordshire LU3 1PQ e: info@ginway.co.uk w: www.ginway.co.uk t: 0800 612 7697 34 Beechfield Road, Corsham, Wiltshire SN13 9DW e: ralph@giraffeengineering.com w: www.giraffeengineering.com t: 07580 126945

Glasper Lee Design Ltd

19 Douglas Crescent, Auckland Park, Bishop Auckland, Durham DL14 8RG e: matthew@glasperlee.co.uk t: 07810 505252

Glass Light and Special Structures 19 Britton Street, London EC1M 5NZ e: tm@glasslimited.com w: www.glasslimited.com t: 020 7490 3446 En2000

GMIT

GMIT Letterfrack, National Centre for Excellence in Furniture Design and Technology, Letterfrack, Co. Galway H91 AH5K, Republic of Ireland e: dermot.odonovan@gmit.ie w: www.gmit.ie t: 00 353 91 742650 Cj1000, Co6500, Co9100, Ed4000, Fu3000

GNP Chartered Architects

4 Goodman Gardens, Woughton on the Green, Milton Keynes, Buckinghamshire MK6 3EP e: gnparchitects@aol.com w: www.gnpcharteredarchitects.co.uk t: 01908 200002 Ar2000

Good Architecture

90 Ware Road, Hertford SG13 7HN e: contact@goodarchitecture.co.uk w: www.goodarchitecture.co.uk t: 01992 501073 Ar2000

Goodson Associates

4 Landsdowne Crescent, Glasgow G20 6NQ e: glasgow@goodsons.com w: www.goodsons.com t: 0141 337 6868 f: 0141 337 1738 Ce2000, Co9100, Co9200, En2000

Goodson Associates

53 Melville Street, Edinburgh, Lothian EH3 7HL e: simon@goodsons.com w: www.goodsons.com t: 0131 226 2044 f: 0131 226 3107 Ce2000, Co4000, Co9100, En2000, Ti1200

Goodwood CLT Ltd

11a Gold Street, Wellinborough, Northants NN8 4QT e: pmccrone@goodwoodclt.com w: goodwoodclt.com t: 07796 270097

Graham Garner and Partners Ltd Arrowsmith Court, 10 Station Approach, Broadstone, Dorset BH18 8AX e: enquiries@ggpl.co.uk w: www.ggpl.co.uk t: 01202 697341 f: 01202 601852 En2000

Graham Wright Architect

3 Upper Cavendish Avenue, London N3 3NN e: gw19@architectuk.biz t: 07785 932138

Grant Bulloch Architect

91 Restalrig Avenue, Edinburgh, Midlothian EH7 6PN e: info@grantbulloch.co.uk w: www.grantbulloch.co.uk t: 0131 661 1930 Ar2000

Green Arc Design

Unit 13 The Hub, Crowther Road, Washington, Tyne and Wear NE38 0AQ e: colin@greenarcdesign.co.uk w: www.greenarcdesign.co.uk t: 0191 386 0751 En2000, Ti1200

Green Oak Carpentry Company Ltd, The

Langley Farm, Langley, Rake, Liss, Hampshire GU33 7JW e: enquiries@greenoakcarpentry.co.uk w: www.greenoakcarpentry.co.uk t: 01730 892049 Br2000, Co9100, Oa1000, Re6000, Ti2500

www.trada.co.uk

TRADA Members

Greenbeams.com, Structural & Civil Consultants

7 South Parade, Northallerton, North Yorkshire DL7 8SE e: info@structural.org.uk w: www.greenbeams.com t: 01609 779904 f: 01609 761552 Co9100, Co9200, He1000, Te4000, Ti1200

Greenfields Design Ltd

2B Bank Street, Alloa, Clackmannanshire FK10 1HP e: gfd@greenfieldsdesign.co.uk w: www.greenfieldsdesign.co.uk t: 01259 216500 f: 0870 123 1571 Ar2000, Ar2500, Co4000, Co9200

Greentram Software Pty Ltd

PO Box 23447, Docklands 8012, Australia e: tony@greentram.com w: www.greentram.com t: 00 61 3 9077 4757 So1000

Griffen Design Ltd

6 Osprey Bank, Fowlis, Dundee, Angus DD2 5GE e: info@griffendesign.co.uk t: 01382 581586 En2000

Grindley Architects

7 Lissel Road, Simpson, Milton Keynes, Buckinghamshire MK6 3AX e: info@davidgrindleyarchitects.co.uk w: www.davidgrindleyarchitects.co.uk t: 01908 668919 f: 01908 673803 Ar2000

Gripdeck

GWP Architecture Ltd

Bracken House, 1 Lidgett Lane, Leeds, West Yorkshire LS8 1PQ e: architecture@gwp-arch.com w: www.gwp-arch.com t: 0113 266 6044 f: 0113 268 1859 Ar2000

H

H B L Associates

Brook House, Weybrook Road, Heaton Chapel, Stockport M19 2QD e: consultants@hblassociates.co.uk w: www.hblassociates.co.uk t: 0161 432 9977 f: 0161 432 7979 En2000

Bouthwood Road, Sowerby Woods Business Park, Park Road, Barrow in Furness, Cumbria LA14 4QR e: mike@guardiantimber.co.uk w: www.guardiantimberframe.co.uk t: 01229 820479 f: 01229 432155 Ti2000

Guild of Master Craftsmen, The

166 High Street, Lewes, East Sussex BN7 1XU e: theguild@thegmcgroup.com w: www.guildmc.com t: 01273 478449 As1000

www.trada.co.uk

Harlow Bros Ltd

Hawkins Brown Architects

159 St John Street, London EC1V 4QJ e: mail@hawkinsbrown.co.uk w: www.hawkinsbrown.com t: 020 7336 8030 f: 020 7336 8851 Ar2000

Harper, A J

Haworth Tompkins Architects

H&M Carpentry Ltd

Little Priory Court, Fore Street, Totnes, Devon TQ9 5NJ e: design@harrisonsutton.com w: www.harrisonsutton.com t: 01803 865084 f: 01803 865114 Ar2000

Hay & Co Buildbase

Harrison Varma Ltd

Haydn E Williams Cyf. Chartered Surveyors

The Old Office, Unit 3, Furnham Trading Estate, Chard, Somerset TA20 1AX e: info@hmcarpentryltd.co.uk w: www.hmcarpentryltd.co.uk t: 01460 68742 Cj1000

Blackwood Way, Bankhead Industrial Estate, Glenrothes, Fife KY7 6JF e: sales@haldaneuk.com w: www.haldaneuk.com t: 01592 775656 f: 01592 775757 Jo4000, Jo5000, St2000, St3000, Wo2000

Guardian Homes

Drakes Industrial Estate, Shay Lane, Ovenden, Halifax, West Yorkshire HX3 6RL e: sales@hanson-plywood.co.uk w: www.hanson-plywood.co.uk t: 01422 330444 f: 01422 330706 Md1000, Or1000, Pa7000, Pa8800, Pl1000

PO Box 5100, Manama 5100, Kingdom of Bahrain e: ivan@havelockahi.biz w: www.havelockone.com t: 00 973 17 832022 f: 00 973 17 832032 Cj1000, Do2500, Fu4000, Jo4000, Ti2000

26 Enterprise House, Kingsway, Team Valley, Gateshead, Tyne and Wear NE11 0SR e: hmh@hmharchitects.co.uk w: www.hmharchitects.co.uk t: 0191 487 0062 f: 0191 482 6581 Ar2000

H M H Architects

Gripsure UK Ltd

1 - 3 Greenhill, Wirksworth, Derbyshire DE4 4EN e: info@grtarchitecture.co.uk w: grtarchitecture.co.uk t: 01629 825491 Ar2000

Hanson Plywood Ltd

Havelock ONE

Haworth McCall

Haglund Kelley LLP

GRT

12 Boleyn Court, Tudor Way, Knaphill, Woking, Surrey GU21 2UA e: handsonwoodltd@gmail.com t: 07595 971024 Bu3000

Long Whatton, Loughborough, Leicestershire LE12 5DE e: p.harlow@harlowbros.co.uk w: www.harlowbros.co.uk t: 01509 842561 f: 01509 843577 Bu6800, Pr1000, St6000, St8000, Ti7500

Unit 1 Chancers Farm, Fossetts Lane, Fordham, Colchester, Essex CO6 3NY e: mail@gripdeck.co.uk w: www.gripdeck.co.uk t: 01206 242494 De2000, Pa7200 Unit 2, Rockhill Business Park, Bugle, St Austell, Cornwall PL26 8RA e: info@gripsure.co.uk w: www.gripsure.co.uk t: 01726 844616 f: 01726 844945 De2000

Hands On Wood Ltd

200 SW Market St., Suite 1777, Portland, OR 97201, United States e: mhaglund@hk-law.com t: 00 1 503 225 0777

Haldane (UK) Ltd

Halsall Lloyd LLP

98 Duke Street, Liverpool L1 5AG e: liverpool@hlpdesign.com w: www.hlpdesign.com t: 0151 708 8944 f: 0151 709 1737 Ar2000, Co8800, La9000

Halvorsen Architects

Mountskip House, Newlandrig, Gorebridge, Midlothian EH23 4NW e: gail@halvorsenarchitects.co.uk w: www.halvorsen-architects.co.uk t: 01875 821266 Ar2000

Hammond Architectural Services Ltd 10 Goldtops, Newport NP20 4PH e: pjhammond@hammond-ltd.co.uk w: www.hammond-architectural-services.co.uk t: 01633 844970 Ar2500, Co4000

Hampshire County Council

County Architect's Department, Three Minsters House, 76 High Street, Winchester, Hampshire SO23 8UL t: 01962 847808 f: 01962 841326 Lo1000

56 Glendale, South Woodham Ferrers, Chelmsford, Essex CM3 5TS e: aharper007@aol.com t: 01245 322689 f: 01245 322689 En2000

Harrison Sutton Partnership

HV Bespoke Joinery, Unit 1 Oxgate Centre, Oxgate Lane, London NW2 7JA e: info@harrisonvarma.co.uk w: www.harrisonvarma.co.uk t: 020 8733 1580 Do2500, Do5000, Fu4000, Jo4000, Jo5000

Harry Turnbull Ltd, Consulting Civil Engineer 10 Oliver Place, Hawick, Scottish Borders TD9 9BG e: harry.turnbull@htltd.f9.co.uk w: www.harry-turnbull-ltd.co.uk t: 01450 371177 f: 01450 371177 Ce2000, En2000

Hart Design and Construction

1 Manor Farm Offices, Corsley, Warminster, Wiltshire BA12 7QE e: enquiries@hartdesignandconstruction.co.uk w: www.hartdesignandconstruction.co.uk t: 01373 832935

Hartigan

Norman House, La Grande Route De St Martin, St Saviour, Jersey JE2 7GR, Channel Islands e: admin@hartigan.co.uk w: www.hartigan.co.uk t: 01534 766655 f: 01534 766650 Co4000, Co5000, Co9100, Co9200, En2000

Harvey and Snowdon

Kingsbury Square, Wilton, Salisbury, Wiltshire SP2 0BA e: mail@harveyandsnowdon.co.uk t: 01722 744200 f: 01722 744402 Co9100, En2000

City East Business Centre, 68-72 Newtownards Road, Belfast, Co. Down BT4 1GW e: des@haworthmccall.co.uk w: www.haworthmccall.co.uk t: 028 9028 3060 5th Floor, Highgate Business Park, 33 Greenwood Place, London NW5 1LB e: info@haworthtompkins.com w: www.haworthtompkins.com t: 020 7250 3225 f: 020 7250 3226 Ar2000 Freefield, Lerwick, Shetland ZE1 0NH e: shetland@buildbase.co.uk w: www.buildbase.co.uk t: 01595 693057 f: 01595 696037 Bu1000, Jo2000, Ti7500

Gellidara, Penrhos, Pwllheli, Gwynedd LL53 7HF e: info@haydnewilliams.com w: www.haydnewilliams.com t: 01758 614444 Co4000, En1000, Su1000

Haysom Ward Miller Architects

Suite 4, Munro Court, 20 Mercers Row, Cambridge, Cambridgeshire CB5 8HY e: admin@haysomwardmiller.co.uk w: www.haysomwardmiller.co.uk t: 01223 578545 Ar2000

Hayward Smart Architects

The Coach House, 3a New Street, Shipston on Stour, Warwickshire CV36 4EW e: studio@hsarchitects.co.uk w: www.hsarchitects.co.uk t: 01608 661000

Hazel Crawford Architect

43 High Street, East Linton, East Lothian EH40 3AA e: info@hazelcrawford-architect.com w: www.hazelcrawford-architect.com t: 01620 860090 Ar2000

Hazelwood Carpentry Contractors Ltd Unit 1, Business Development Centre, Main Avenue, Treforest Industrial Estate, Pontypridd, Mid Glamorgan CF37 5UR e: martin@hazelwoodcarpentry.co.uk w: www.hazelwoodcarpentry.co.uk t: 01443 841717 f: 01443 841717 Ca0500

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TRADA Members

Hazle McCormack Young LLP

Leap House, Frog Lane, Tunbridge Wells, Kent TN1 1YT e: joannamc@hmy.uk.com w: www.hmy.uk.com t: 01892 515311 f: 01892 515285 Ar2000

Hazlin

Station Works, Bromfield, Ludlow, Shropshire SY8 2BT e: info@hazlin.co.uk w: www.hazlin.co.uk t: 01584 856439 f: 01584 856520 Do2500, Do4500, Do5000, Jo4000, Pa8700

Helen Lucas Architects Ltd

31 - 35 Marchmont Road, Edinburgh, Lothian EH9 1HU e: mail@helenlucas.co.uk w: www.helenlucas.co.uk t: 0131 478 8880 f: 0131 478 0079 Ar2000

Henderson Thomas Associates Ltd Unit 3, Harestanes Industrial Estate, Braidwood, Carluke, South Lanarkshire ML8 5PP e: testing@hendersonthomas.co.uk w: www.hendersonthomas.co.uk t: 01555 668577

Hendricks Lovell

Appin House, Stewarts Quay, Printing House Lane, Hayes, Middlesex UB3 1AP e: david.mitton@hendricks-lovell.co.uk w: www.hendricks-lovell.co.uk t: 020 8573 8491 f: 020 8573 9182 Bu1000, Ti7500, Ti7700

Hermolle Associates Ltd

Constellation House, Amy Johnson Way, Blackpool, Lancashire FY4 2RN e: chris@hermolle.com w: www.hermolle.com t: 01253 336740 Co9100, En2000

Heyne Tillett Steel Ltd

4 Pear Tree Court, London EC1R 0DS e: mail@hts.uk.com w: www.heynetillettsteel.com t: 020 7870 8050 Co9100, En2000, Re4000

HGA (UK) Ltd

Darach House, Stoneyfield Business Park, Inverness, Inverness-shire IV2 7PA e: hga@hgagroup.co.uk w: www.hgagroup.co.uk t: 01463 221717 f: 01463 224275 Ce2000, Co4000, Co9100, Co9200, En2000

Highfield (Cumbria) Ltd

40 High Brigham, Brigham, Cockermouth, Cumbria CA13 0TE e: info@highfieldcumbria.com t: 07795 425534 Bu3000

Hilton Barnfield Architects The Studio, 158 Heavitree Road, Exeter, Devon EX1 2LZ e: studio@hiltonbarnfield.co.uk w: www.robhilton.co.uk t: 01395 224829 Ar2000, Ti1200

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Hive Architects Studio Ltd

Horsley Townsend Architects

HLM Architects

Hoskins Architects

Beck House, 77a King Street, Knutsford, Cheshire WA16 6DX e: info@hivearchitects.co.uk w: www.hivearchitects.co.uk t: 01565 748050 Ar2000

Fifth Floor, 10 Alie Street, London E1 8DE e: london@hlmarchitects.com w: www.hlmarchitects.com t: 020 7921 4800 Ar2000, Ar2500, Co5000, La9000

HM Chambers and Partners

41a Derby Road, Heanor, Derbyshire DE75 7QG e: rossreeceevans@btconnect.com t: 01773 718994 f: 01773 531293 Co4000, Co9200, En2000, Su1000

Hockley & Dawson

The Great Barn, Smithbrook Barns, Cranleigh, Surrey GU6 8LH e: admin@hockleyanddawson.co.uk w: www.hockleyanddawson.co.uk t: 01483 548784 f: 01483 268765 Co4000, Co9100, En2000, Ti1200

Holbrook Design Ltd

Suite 1 & 2, Tudor House, Coychurch, Bridgend, Bridgend County CF35 5NS e: enquiries@holbrookdesignltd.com w: www.holbrookdesignltd.com t: 01656 726967 Co4000, Co9100, Co9200, Ti1200

Holman Specialist Paints Ltd

1 Central Trading Estate, Signal Way, Swindon, Wiltshire SN3 1PD e: sales@holmanpaints.co.uk w: www.holmanpaints.co.uk t: 01793 511537 Co1700, Pa3000, Pa4000, St1000

Hopkins Architects

27 Broadley Terrace, London NW1 6LG e: mail@hopkins.co.uk w: www.hopkins.co.uk t: 020 7724 1751 f: 020 7723 0932 Ar2000

Hoppings Softwood Products PLC

The Woodyard, Epping Road, Epping, Essex CM16 6TT e: info@hoppings.co.uk w: www.hoppings.co.uk t: 01992 578877 f: 01992 561385 Cd1000, De2000, Fe3000, Md3000, Mo5000

Hoppings Softwood Products PLC

Timber Yard, Bones Lane, Newchapel, Lingfield, Surrey RH7 6HR e: info@hoppings.co.uk w: www.hoppings.co.uk t: 01342 844408 f: 01342 844449 Cd1000, De2000, Fe3000, Md3000, Mo5000

Horizon Scotland

The Entrerprise Park, Forres IV36 2AB t: 01309 678155

Horohoe Construction Ltd

Lanesboro House, 108 - 110 Primrose Hill, Kings Langley, Hertfordshire WD4 8HR e: enquiries@horohoe.co.uk w: www.horohoe.co.uk t: 0330 127 2000 Bu3000

Wharfe Suite, Brunswick Court, Victoria Street, Wetherby LS22 6RE e: guy@horsleytownsend.com w: www.horsleytownsend.com t: 01937 587420 f: 01937 587419

Studio 401, South Block, 60/64 Osborne St, Glasgow G1 5QH e: glasgow@hoskinsarchitects.com w: www.hoskinsarchitects.com t: 0141 553 5800 Ar2000

Houghtons of York

Common Road, Dunnington, York, North Yorkshire YO19 5PD e: office@houghtons.plus.com w: www.houghtonsofyork.co.uk t: 01904 489193 Fu4000, He1000, Jo5000, St3000, Wi3000

Howard Cavanna Ltd

3a Sandiford Road, Sutton, Surrey SM3 9RN e: richardp@howardcavanna.co.uk w: www.howardcavanna.com t: 020 8644 0905

Husker Ltd

Unit 6a, The Courtyard, Amners Farm, Burghfield, Reading, Berkshire RG30 3UE e: duncan@husker.build w: www.husker-passivhaus.co.uk t: 01189 110203

Hutton & Rostron Environmental Investigations Ltd

Netley House, Gomshall, Guildford, Surrey GU5 9QA e: ei@handr.co.uk w: www.handr.co.uk t: 01483 203221 f: 01483 202911 Ar2500, Co4000, Co8500, En5000, Su1000

Hybrid Structures

61 Canal Street, Derby, Derbyshire DE1 2RJ e: sales@hybridstructures.com w: www.hare.com t: 01332 287451

Hydrock Consultants

3rd Floor, Merchants' House North, Wapping Road, Bristol, Avon BS1 4RW e: bristolcentral@hydrock.com w: www.hydrock.com/structures t: 0117 945 9225 f: 0117 930 0692 Co9100, En2000

Hypostyle Architects

49 St Vincent Crescent, Glasgow, Lanarkshire G3 8NG e: postmaster@hypostyle.co.uk w: www.hypostyle.co.uk t: 0141 204 4441 Ar2000

I

I D Carter Ltd

Brookville, Ramsgate, Camborne, Cornwall TR14 0RQ e: idcarterltd@hotmail.co.uk t: 01209 719154 Bu3000

IAF Design

Hillsrest, Presteigne Road, Knighton, Powys LD7 1HY e: mail@iafdesign.co.uk w: www.iafdesign.co.uk t: 01547 528264 Ar2500, Co4000, Co8800, Fu3000, Ti1200

Ian Chalk Architects Ltd

70 Cowcross Street, London EC1M 6EJ e: ian@ianchalkarchitects.com w: www.ianchalkarchitects.com t: 020 3780 7355 Ar2000

Ian Lane Associates

Lower Kenfield Cottage, Kenfield Road, Petham, Canterbury, Kent CT4 5RN e: ianlaneuk@alo.com t: 01227 700772

Ian O'Brien Studio Ltd

2 Chadshunt Cottages, Chadshunt, Warwick, Warwickshire CV35 0EG e: studio@ianobrienstudio.co.uk w: www.ianobrienstudio.co.uk t: 01295 670068 Ar2000

Ian Rodger Architects

1b Ruthrie Terrace, Aberdeen, Aberdeenshire AB10 7JY e: info@ir-architects.co.uk w: www.ir-architects.co.uk t: 01224 313080

Ian Slater Architectural Design

The Rill, 9 Crabtree Road, Haddenham, Buckinghamshire HP17 8AT e: ian@ianslater.com w: www.ianslater.com t: 01844 260860 Ar2500

Iesis Structures

9-95 Redcliff Street, Bristol BS1 6LU e: info@iesisgroup.com w: www.iesisgroup.com t: 0117 922 7039

Iesis Structures

20 Ironmonger Lane, London EC2V 8EP e: info@iesisgroup.com w: www.iesisgroup.com t: 020 7600 2912

Ikopluseco

Filopheis 6, Geroskipou, Paphos 8201, Cyprus e: lefki.michail@ikopluseco.com w: www.ikopluseco.eu t: 00 357 26 94 97 65 f: 00 357 26 94 46 23 Pa7200

Inner World Design & Build Ltd 3 High Street, Llanllechid, Bethesda, Gwynedd LL57 3EL e: info@innerworld.uk.com w: www.innerworld.uk.com t: 01248 602638 f: 01248 600293 Bu3000, Cj1000

Inside Out Architecture

6-8 Cole Street, London SE1 4YH e: steve@io-a.com w: www.io-a.com t: 020 7367 6831 Ar2000

Institute of Carpenters

32 High Street, Wendover HP22 6EA e: info@instituteofcarpenters.com w: www.instituteofcarpenters.com t: 0844 879 7696

Integral Engineering Design

First Floor, Riverside South, Walcot Yard, Walcot Street, Bath, Avon BA1 5BG e: mail@integral-engineering.co.uk w: www.integral-engineering.co.uk t: 01225 859657 En2000

www.trada.co.uk

TRADA Members

Integration Architecture

12 Crummock Gardens, London NW9 0DG e: michael@integrationarchitecture.co.uk w: www.integrationarchitecture.co.uk t: 020 8200 7758 Ar2000

International Decorative Surfaces Caledonia Heights, Admiralty Park, Rosyth, Fife KY11 2WW e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 01383 421120 f: 01383 421133 Fl4000, Fl5000, Ki3000, La4000, Md3000

International Decorative Surfaces Dukesway, Team Valley Trading Estate, Gateshead, Tyne & Wear NE11 0PZ e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 0191 491 7000 f: 0191 491 7007 Fl4000, Fl5000, Ki3000, La4000, Md3000

International Decorative Surfaces

Forest House, Unit 18 Woodford Trading Est, Southend Road, Woodford Green, Essex IG8 8HF e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 020 8550 8899 f: 020 8550 3918 Fl4000, Fl5000, Ki3000, La4000, Md3000

International Decorative Surfaces

International Decorative Surfaces

Inwood Developments Ltd

International Decorative Surfaces

Inwood Engineering Ltd

Unit 11, Euroway, Wood Close, Quarrywood Industrial Estate, Aylesford, Kent ME20 7UB e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 01622 711400 f: 01622 717770 Fl4000, Fl5000, Ki3000, La4000, Md3000 West End Approach, Off Bruntcliffe Road, Morley, Leeds, West Yorkshire LS27 0NB e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 0113 220 3900 f: 0113 220 3901 Fl4000, Fl5000, Ki3000, La4000, Md3000

International Plywood (Importers) Ltd

Innsworth Technology Park, Innsworth Lane, Gloucester, Gloucestershire GL3 1DL e: info@plywooduk.com w: www.plywooduk.com t: 01452 731493 f: 01452 731497 Md1000, Or1000, Pa7000, Pl1000, Pl2000

International Timber

Earls Road, Grangemouth, Stirlingshire FK3 8UU e: info@internationaltimber.com w: www.internationaltimber.com t: 01324 666000 f: 01324 666111 De2000, Ha2000, Ha7000, Ma2500, Pr1000

London Road, Chesterton, Newcastle under Lyme, Staffordshire ST5 7PL e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 01782 717177 f: 01782 710110 Fl4000, Fl5000, Ki3000, La4000, Md3000

International Timber

International Decorative Surfaces

International Timber

Sedgefield House, Tridant Business Park, Risley, Warrington, Cheshire WA3 6BX e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 01925 852200 f: 01925 852999 Fl4000, Fl5000, Ki3000, La4000, Md3000

International Decorative Surfaces St David's Way, Bermuda Park, Nuneaton, Warwickshire CV10 7SD e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 024 7632 5031 f: 024 7632 6806 Fl4000, Fl5000, Ki3000, La4000, Md3000

International Decorative Surfaces

North Dock, Alexandra Dock, Newport, Dyfed NP20 2WB e: info@internationaltimber.com w: www.internationaltimber.com t: 01633 245151 f: 01633 256265 Ti7500 Parkend, Lydney, Gloucester, Gloucestershire GL15 4JF e: info@internationaltimber.com w: www.internationaltimber.com t: 01594 566000 f: 01594 566001 Ha2000, Ha7000, Ti1000

International Timber

Timber Terminal, King George Dock, Hull, Humberside HU9 5QE e: info@internationaltimber.com w: www.internationaltimber.com t: 01482 713400/434 f: 01482 713442

International Timber

The Potter Group, Queen Adelaide, Ely, Cambridgeshire CB7 4UB e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 01353 645110 f: 01353 645112 Fl4000, Fl5000, Ki3000, La4000, Md3000

West Yard, Trafford Wharf Road, Trafford Park, Manchester, Greater Manchester M17 1DJ e: info@internationaltimber.com w: www.internationaltimber.com t: 0161 848 2900 f: 0161 848 2901 Fl3000, Ha2000, Ma2500, Mo4500, Mo5000

International Decorative Surfaces

Inverness College

Unit 9, Euroway, Blagrove, Swindon, Wiltshire SN5 8YW e: info@idsurfaces.co.uk w: www.idsurfaces.co.uk t: 01793 513181 f: 01793 513995 Fl4000, Fl5000, Ki3000, La4000, Md3000

1 Inverness Campus, Inverness, Highland IV2 5NA e: info@inverness.uhi.ac.uk w: www.inverness.uhi.ac.uk t: 01463 273000 f: 01463 711977 Ed4000

Invertay Homes Ltd

Unit 3, Block 1, Pearce Avenue, West Pitkerro Industrial Estate, Dundee DD5 3RX e: mike@invertayhomes.co.uk w: www.invertayhomes.co.uk t: 01382 864515

www.trada.co.uk

The Woodland Centre, Whitesmith, Lewes, East Sussex BN8 6JB e: info@in-wood.co.uk w: www.in-wood.co.uk t: 01825 872550 f: 01825 872914 Gl1000

James Latham PLC

Pharos, Brittain Way, Eurocentral, Motherwell, Lanarkshire ML1 4XJ e: scotland@lathams.co.uk w: www.lathamtimber.co.uk t: 01698 838777 Cd1000, Do2000, Mo0500, Pa7500, Ti7600

James Latham PLC

37 Kingfisher Road, Bourton-on-the-Water, Cheltenham, Gloucestershire GL54 2RQ e: admin@inwoodengineering.co.uk w: www.inwoodengineering.co.uk t: 01451 526118 Co9100, En2000, Ti1200

Product Specification Showroom, London, Suite 301, Business Design Centre, 52 Upper Street, Islington, London N1 0QH e: bdc@lathams.co.uk w: www.lathamspecification.co.uk t: 020 7288 6417 Cd1000, Do2000, Mo0500, Pa7500, Ti7600

IOJ Development Ltd

James Latham PLC

59 Ocean Club, Paradise Island, Nassau, New Providence N3937, Bahamas e: iojdevelopment@gmail.com t: 00 1 242 427 0519

Ipswich Timber Frame Ltd

Unit 1 Anson Road, Martlesham Heath Business Park, Ipswich, Suffolk IP5 3RG e: enquiries@ipswichtimberframe.co.uk w: www.ipswichtimberframe.co.uk t: 0845 5211 309 f: 01473 612 096 Ti2000

iWood Timber Ltd

Unit 1C, Airfield Industrial Estate, Hixon, Stafford ST18 0PF e: enquiries@iwood.co.uk w: www.iwood.co.uk t: 01889 279018 Be1000, Cd1000, Ha7000, Ma2500, Ti7600

J

J K C Timber Engineering

Treveth, Trevissome, Flushing, Falmouth, Cornwall TR11 5TA e: johncruise@btinternet.com t: 01326 373414 f: 01326 378946 En2000

J P Corry Group Ltd

648 Springfield Road, Belfast, County Antrim BT12 7EH e: info@jpcorry.co.uk w: www.jpcorry.co.uk t: 028 9024 3661 f: 028 9023 2123 Bu1000, Ti7500

J Turner Design Ltd

5 Grange Park Drive, Morley, Leeds, West Yorkshire LS27 7UR e: inbox@jturnerdesign.co.uk t: 07876 161715

JAB Structures

37 Downlands Avenue, Worthing, West Sussex BN14 9HD e: jason@jabstructures.co.uk w: www.jabstructures.co.uk t: 01903 535935

James Latham PLC

Direct Timber, 5B The Old Yard, Rectory Lane, Brasted, Westerham TN16 1JP

James Latham PLC

Product Specification Showroom, Manchester, 31a Tib Street, Manchester M4 1LX e: pssm@lathams.co.uk w: www.lathamspecification.co.uk t: 0161 537 1185 Cd1000, Do2000, Mo0500, Pa7000, Ti7600

James Latham PLC

Topcliffe Close, Off Topcliffe Lane, Capitol Park East, Tingley, Leeds, West Yorkshire WF3 1DR e: leeds@lathams.co.uk w: www.lathamtimber.co.uk t: 0113 387 0830 Cd1000, Do2000, Mo0500, Pa7500, Ti7600

James Latham PLC

Unit 2, Swallow Park, Finway Road, Hemel Hempstead, Hertfordshire HP2 7QU e: panels.hemel@lathams.co.uk w: www.lathamtimber.co.uk t: 01442 849000 Do2000, Ki3000, Md3000, Pa7500, Ti7600

James Latham PLC

Unit 3, Swallow Park, Finway Road, Hemel Hempstead, Hertfordshire HP2 7QU e: marketing@lathams.co.uk w: www.lathamtimber.co.uk t: 01442 849100 Do2000, Ki3000, Md3000, Pa7500, Ti7600

James Latham PLC

Unit 3, Yorks Park, Blowers Green Road, Dudley, West Midlands DY2 8UL e: panels.dudley@lathams.co.uk w: www.lathamtimber.co.uk t: 01384 234444 Cd1000, Do2000, Mo0500, Pa7500, Ti7700

James Latham PLC

Unit 4 Dolphin Way, Purfleet, Essex RM19 1NZ e: panels.thurrock@lathams.co.uk w: www.lathamtimber.co.uk t: 01708 869800 Do2000, Ki3000, La4000, Md3000, Pa7500

James Latham PLC

Unit 6, Matrix Park, Talbot Road, Fareham, Hampshire PO15 5AP e: panels.fareham@lathams.co.uk w: www.lathamtimber.co.uk t: 01329 854800 Cd1000, Do2000, Mo0500, Pa7500, Ti7600

James Latham PLC

Unit 14, Apollo Park, Armstrong Way, Yate, Bristol BS37 5AH e: panels.yate@lathams.co.uk w: www.lathamtimber.co.uk t: 01454 315421 Cd1000, Do2000, Mo0500, Pa7500, Ti7600

Nest Road, Felling Industrial Estate, Gateshead, Tyne & Wear NE10 0LU e: panels.gateshead@lathams.co.uk w: www.lathamtimber.co.uk t: 0191 469 4211 Cd1000, Do2000, Mo0500, Pa7500, Ti7600

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TRADA Members

James Latham PLC

Units 22/24 Purfleet Industrial Park, Juliette Way, Aveley, South Ockendon, Essex RM15 4YD e: timber.purfleet@lathams.co.uk w: www.lathamtimber.co.uk t: 01708 864477 Cd1000, De2000, Fl4000, Mo0500, Ti0500

James Latham PLC

Unit A, Devana Avenue, Optimus Point, Glenfield, Leicester, Leicestershire LE3 8JS e: leicester@lathams.co.uk w: www.lathamtimber.co.uk t: 0116 288 9161 Cd1000, Do2000, Mo0500, Pa7500, Ti7600

James Lockyer Associates Ltd

4 Oakland Mews, Liskeard Business Park, Liskeard, Cornwall PL14 3UX e: post@jameslockyer.co.uk w: www.jameslockyer.co.uk t: 01579 344771 f: 01579 344882 Co4000, Co5000, Co8800, Co9100, En2000

JAMSTUDIO LTD

Moss-Side Steading, Fetternear, Inverurie, Aberdeenshire AB51 5JX e: info@jamstudio.uk.com w: www.jamstudio.uk.com t: 01224 646450

Jane Leadon Ltd

40 Gortfad Road, Garvagh, Coleraine, Co. Derry BT51 5BG e: janeleadon@btinternet.com t: 028 2955 8929 f: 028 2955 7769

Jane Wernick Associates

Unit 10d, Printing House Yard, Hackney Road, London E2 7PR e: colin.jackson@wernick.eu.com w: www.wernick.eu.com t: 020 7749 1066 f: 020 7749 1067

Jasway Ltd

36 Lapford Drive, Cramlington, Northumberland NE23 3GP e: jasway97@gmail.com t: 0191 266 6568

JB Kind Ltd

Portal Place, Astron Business Park, Hearthcote Road, Swadlincote DE11 9DW e: orders@jbkind.com w: www.jbkind.com/products/internal-doors t: 01283 554197 Do1000, Do2000, Do3000, Do4500, Do5000

JC Consultancy Ltd

Morgan House, Gilbert Drive, Boston, Lincolnshire PE21 7TQ e: info@jcconsultancyltd.com w: www.jcconsultancyltd.com t: 01205 317540 En2000

JCK Joinery

8 Heanor Street, Leicester, Leicestershire LE1 4DD e: enquiries@jckjoinery.co.uk w: www.jckjoinery.co.uk t: 0116 291 2288 f: 0116 291 2300 Do2500, Do4500, Do5000, Jo4000, Wi3000

JCP Engineers

Suite 6, Minton House, London Road, Amesbury, Wiltshire SP4 7RT e: admin@jcpengineers.co.uk w: www.jcpengineers.co.uk t: 01980 677722 En2000

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Timber 2020 Industry Yearbook

JDA Building Consultants

Jewson Ltd

Jewson Ltd

JDM Joinery Ltd

Jewson Ltd

Jewson Ltd

Jewson Ltd

Jewson Ltd

Jewson Ltd

Jewson Ltd

Jewson Ltd

Jewson Ltd

Hayesdown, Withyham Road, Groombridge, Tunbridge Wells, Kent TN3 9QP e: jda@jdabuildingconsultants.co.uk t: 01892 864462 27 Selby Place, Stanley Industrial Estate, Skelmersdale, West Lancashire WN8 8EF e: info@jdmltd.co.uk w: www.jdmltd.co.uk t: 01695 550952 f: 01695 559630 Fu4000, Jo4000, Jo5000, St3000, Wi2000

Jenkins & Potter Ltd

1 Lower Compton, Mannamead, Plymouth, Devon PL3 5DH w: www.jenkinspotter.co.uk t: 01752 251111

Jenkins & Potter Ltd

1st Floor, 67-74 Saffron Hill, London EC1N 8QX e: a.arthur@jenkinspotter.co.uk w: www.jenkinspotter.co.uk t: 020 7242 8711 Co4000, Co8800, Co9100, En2000, Re4000

Jenkins & Potter Ltd

Canningford House, 38 Victoria Street, Bristol, Avon BS1 6BY w: www.jenkinspotter.co.uk t: 0117 929 0261 f: 0117 925 1466

300 Price Street, Birkenhead, Merseyside CH41 3PX w: www.jewson.co.uk t: 0151 647 7421 453 Queens Road, Sheffield, South Yorkshire S2 4DR w: www.jewson.co.uk t: 0114 273 0251 468 Basingstoke Road, Reading, Berkshire RG2 0QQ w: www.jewson.co.uk t: 0118 986 1992 Antelope House, Burlesdon Road, Southampton, Hampshire SO19 8BF w: www.jewson.co.uk t: 023 8068 5128 Arthurs Bridge Wharf, Horsell, Woking, Surrey GU21 4NP w: www.jewson.co.uk t: 01483 715371

Jewson Ltd

Greg Street, Reddish, Stockport, Cheshire SK5 7NW w: www.jewson.co.uk t: 0161 480 2434 Holmbush Industrial Estate, Manfield Way, St Austell, Cornwall PL25 3HQ w: www.jewson.co.uk t: 01726 73333 Ilderton Wharf, Rollins Street, Peckham, London SE15 1EP w: www.jewson.co.uk t: 020 7732 3551 Isenhurst Sawmills, Cross in Hand, Heathfield, East Sussex TN21 0UB w: www.jewson.co.uk t: 01435 864411 Kestrel Business Park, Kestrel Way, Sowton Industrial Estate, Exeter, Devon EX2 7LZ w: www.jewson.co.uk t: 01392 252251

Beaufort Road, Plasmarl Industrial Estate, Morriston, Swansea, West Glamorgan SA6 8HQ w: www.jewson.co.uk t: 01792 791305

Jewson Ltd

8 Clerkenwell Green, London EC1R 0DE e: info@jennifernewman.com w: jennifernewman.com t: 020 3621 5208 Fu3000, Fu4000

Jewson Ltd

Jewson Ltd

Jennings Design Associates Ltd

Jewson Ltd

Jennifer Newman

The Warehouse, Saxon Street, Denton, Manchester M34 3DS e: bill@jda-architects.com w: www.jda-architects.com t: 0161 336 5011 f: 0161 320 0512 Ar2000

Jessella LTD

Park Mill, Burydell Lane, Park Street, St Albans, Hertfordshire AL2 2EZ e: info@jessella.co.uk w: www.jessella.co.uk t: 01727 744567 f: 01727 201081 Bu3000

Jestico + Whiles

2nd Floor, Sutton Yard, 65 Goswell Road, London EC1V 7EN e: jw@jesticowhiles.com w: www.jesticowhiles.com t: 020 7380 0382 Ar2000

Jet Joinery Supplies Ltd

Unit 1, New Line Road, Kirby-in-Ashfield, Nottinghamshire NG17 5JQ e: liam@jet-joinery.co.uk w: www.jetjoinery.co.uk t: 01623 755560 f: 01623 722211 Jo4000

Jewson Ltd

43 Jubilee Drive, Loughborough, Leicestershire LE11 5XW w: www.jewson.co.uk t: 01509 231091

Jewson Ltd

111 Cannock Street, Thurmaston, Leicester LE4 9HR w: www.jewson.co.uk t: 0116 246 5700

Bridge House Wharf, Lea Road, Waltham Abbey, Hertfordshire EN9 1AZ w: www.jewson.co.uk t: 01992 714000 Canal Wharf, Canal Road, Hereford HR1 2EB w: www.jewson.co.uk t: 01432 272276

Jewson Ltd

Kiln House Lane, Lytham St Annes FY8 3DT w: www.jewson.co.uk t: 01253 726831 Lingfield Sawmills, Lingfield Way, Yarm Road Industrial Estate, Darlington DL1 4PZ w: www.jewson.co.uk t: 01325 469447

Jewson Ltd

London Road, Wheatley, Oxford OX33 1JE w: www.jewson.co.uk t: 01865 874141

Cardinal Leisure Park, Greyfriars Road, Ipswich, Suffolk IP1 1UP w: www.jewson.co.uk t: 0845 640 9331

Jewson Ltd

Jewson Ltd

Jewson Ltd

Clive Road, Redditch, Warwickshire B97 4DH w: www.jewson.co.uk t: 01527 63721

Jewson Ltd

Deacon Road, Lincoln LN2 4LB w: www.jewson.co.uk t: 01522 521364

Jewson Ltd

Dereham Road, Hempton, Fakenham, Norfolk NR21 7JX w: www.jewson.co.uk t: 01328 851451

Jewson Ltd

East Moors Road, Cardiff, South Glamorgan CF24 5EE w: www.jewson.co.uk t: 029 2046 0511

Jewson Ltd

Farnham Trading Estate, Farnham, Surrey GU9 9NS w: www.jewson.co.uk t: 01252 724224

Jewson Ltd

Gibraltar Island, Old Mill Business Park, Leeds LS10 1RJ w: www.jewson.co.uk t: 0113 270 2717

Market Way, Canterbury, Kent CT2 7JJ w: www.jewson.co.uk t: 01227 763222 Mill Place, 90 Bristol Road, Gloucester GL1 5SQ w: www.jewson.co.uk t: 01452 529 871

Jewson Ltd

Narvik Way, Tyne Tunnel, Trading Estate, North Shields, Tyne & Wear NE29 7XJ w: www.jewson.co.uk t: 0191 257 6221

Jewson Ltd

Pinford Lane Industrial Estate, Pinford Lane, Buckley, Clwyd CH7 3PL w: www.jewson.co.uk t: 01244 549720

Jewson Ltd

Richmond Walk, Devonport, Plymouth, Devon PL1 4LL w: www.jewson.co.uk t: 01752 562363

Jewson Ltd

Stevenson Road, Durranhill Trading Estate, Carlisle CA1 3NX w: www.jewson.co.uk t: 01228 536401

JHA Consulting

Mount Agar, Old Carnon Hill, Carnon Downs, Truro, Cornwall TR3 6LE e: john@jhaconsulting.co.uk w: www.jhaconsulting.co.uk t: 01872 858633 En2000

www.trada.co.uk

TRADA Members

Jill Andrews Architect

Swilebog Farmhouse, Cornhill, Banff AB45 2HJ e: swilebog@supanet.com t: 01466 771344 Ar2000

Jim Canning & Partners

11 South Mall, Cork, Co. Cork T12 CYF7, Republic of Ireland e: info@jimcanning.com w: www.jimcanning.com t: 00 353 2142 70927

JJ Interiors (Southwest) Ltd

Unit 1, Office 3, Tower Lane Business Park, Tower Lane, Warmley, Bristol BS30 8XT e: info@jjinteriors.co.uk w: www.jjinteriors.co.uk t: 0117 960 4366 Cj1000, Jo4000

JMAD Architecture

Office G19, Boston Enterprise Centre, Enterprise Way, Wyberton Fen, Boston, Lincolnshire PE21 7TW e: info@jmadarch.co.uk w: www.jennymcintee.co.uk t: 01205 875885 Ar2000, Ar2500

JML Contracts Ltd

The Arns, Auchterarder, Perthshire PH3 1EJ e: sam@jmlcontracts.co.uk w: www.jmlcontracts.co.uk t: 01764 663271 Bu3000, En1000, Ho3000, Ti1200, Ti1500

Jock Gordon Design & Planning 30 Bornisketaig, Kilmuir, Portree, Isle Of Skye IV51 9YS e: info@jockgordon.co.uk w: www.jockgordon.co.uk t: 01470 552392

John Broom Associates

2 Providence Place, Lyme Regis, Dorset DT7 3NZ e: johnbroom8@aol.com t: 01297 445324 f: 01297 444877

John Coward Architects Ltd

Unit 3 Unsworth's Yard, Ford Road, Cartmel, Grange over Sands, Cumbria LA11 6PG e: margaret@johncowardarchitects.co.uk w: www.johncowardarchitects.co.uk t: 01539 536596 f: 01539 536775

John Renshaw Architects

86 Constitution Street, Edinburgh, Midlothian EH6 6RP e: jr.architects@btconnect.com w: www.johnrenshawarchitects.co.uk t: 0131 555 2245 f: 0131 555 5526 Ar2000

Jon J Oates

Woodhouse Farm, Hawkchurch, Axminster, Devon EX13 5UF e: jjo.associates@btinternet.com w: www.jjoassociates.co.uk t: 01297 678138 En2000

Joseph Griggs & Co Ltd

Bristol Road, Gloucester, Gloucestershire GL1 5TD e: sales@josephgriggs.com w: www.griggsfortimber.co.uk t: 01452 520346 f: 01452 300751 Cd1000, Co9100, Ti2000, Ti7500, Tr4000

www.trada.co.uk

Joyce Chanin Developments Ltd

Karesa Timber Frame

Kendall Kingscott Ltd

Milstead Manor Farm, Manor Road, Milstead, Sittingbourne, Kent ME9 0SE e: julie@jpstoneuk.com w: www.jpstoneuk.com t: 01795 830400 f: 01795 830411 Do1000, Do2500, Fu4000, Jo4000, La6000

Karlin Timber Frame (NE) Ltd

Kendo Contracts Ltd

JR Building Ltd

Kast Architects Ltd

Kenford Builders Ltd

Chuan, Quarry Hill, Box, Corsham, Wiltshire SN13 8LP e: graham@jc-developments.co.uk w: www.jc-developments.co.uk t: 01225 744999

JP Stone Ltd

Barnfield Cottage, Overton Lane, Arlingham, Gloucestershire GL2 7JJ e: john@jrbuildingprojects.co.uk w: www.jrbuilding.co.uk t: 01452 741881 f: 01452 740392

Julia Sanders Consulting Ltd

19 Bingham Avenue, Poole, Dorset BH14 8ND e: julia@jsconsultingltd.co.uk w: www.jsconsultingltd.co.uk t: 01202 738293

Julian Bishop - Architect

Danygarn, Mountain West, Newport, Pembrokeshire SA42 0QX e: mail@julianbishop-architect.co.uk w: www.julianbishop-architect.co.uk t: 01239 821150 Ar2000

Julian Owen Associates Architects 276 Queens Road, Beeston, Nottingham, Nottinghamshire NG9 2BD e: julian@julianowen.co.uk w: www.julianowen.co.uk t: 0115 922 9831 Ar2000, Co4000, En1000, Su1000

K

K S Q Building Services

32 Manners Road, Southsea, Portsmouth, Hampshire PO4 0BB e: k.askew@which.net w: www.kenaskew.co.uk t: 07775 675157 f: 023 9286 3469

Kaner Olette Architects

108 Camden Road, Tunbridge Wells, Kent TN1 2QX e: contacts@kanerolette.co.uk t: 01892 537781 Ar2000

Kape Marine Ltd

5 Knoll Park Road, Chertsey, Surrey KT16 9LR e: kapemarineltd@gmail.com w: www.kapemarineltd.co.uk t: 07919 308114 Bu3000

Karen Gardner Architect

Cwmbach, The Bridge, Narberth, Pembrokeshire SA67 8QZ e: karenga@ukgateway.net t: 01834 860784 Ar2000

Karen Parry Architects

Clydeway House, 813 South Street, Glasgow G14 0BX e: karen@karenparryarchitect.com w: www.karenparryarchitect.com t: 0141 438 0062

The Haven, Ford Street, Wellington, Somerset TA21 9PE e: contact@karesa.co.uk w: www.karesa.co.uk t: 01823 660143 f: 01823 660143 9 Maple Way, Aycliffe Industrial Park, Newton Aycliffe, County Durham DL5 6BF e: info@karlintimberframe.co.uk w: www.karlintimberframe.co.uk t: 01325 300250 Ti1500, Ti2000 68 Lemon Street, Truro, Cornwall TR1 2PN e: hello@kastarchitects.com w: www.kastarchitects.com t: 01872 241111 Ar2000

Kavanagh Forensics Ltd

Unit K5, Drinan Enterprise Centre, Swords, Co. Dublin, Republic of Ireland e: ian@kavanaghforensics.ie w: www.kavanaghforensics.ie t: 00 353 87 319 7815 En2000

Kay Pilsbury Architects Ltd

Honeylands, Radwinter, Saffron Walden, Essex CB10 2TJ e: peter@kpt.co.uk w: www.kpt.co.uk t: 01799 599208 f: 01799 599965

KDS & Associates Ltd

101 The Blackfriars Foundry, 156 Blackfriars Road, London SE1 8EN e: ian@kdsassociates.co.uk w: www.kdsassociates.co.uk t: 020 7721 7091 f: 020 7721 7093 Ar2000

Keith Roberts Projects Ltd

Brierfield House, Manor Lane, Lower Leigh, Stoke on Trent, Staffordshire ST10 4SP e: kr@krprojects.co.uk t: 01889 566299 f: 01889 566899

Keith Sanger Associates

23 Hazel Road, Lymington, Hampshire SO41 8GR e: keith@sangersurveyors.co.uk w: www.sangersurveyors.co.uk t: 01590 676879 Su1000

Keith Warren Consultants Ltd 37 Horefield, Porton, Salisbury, Wiltshire SP4 0LE e: keith@kjwconsultants.co.uk w: www.kjwconsultants.co.uk t: 01980 619041 En2000

Kelly & MacPherson Architects

Glenworth Court, Lime Kiln Close, Stoke Gifford, Bristol, Avon BS34 8SR e: simon.weston@kendallkingscott.co.uk w: www.kendallkingscott.co.uk t: 0117 931 2062 Ar2000 248 Bull Lane, Eccles, Aylesford, Kent ME20 7HF e: kjphillips@kendocontracts.co.uk w: www.kendocontracts.co.uk t: 07855 792477 Bu3000 Kenford House, 28 Cygnus Business Centre, Dalmeyer Road, Willesden, London NW10 2XA e: info@kenford.co.uk w: www.kenford.co.uk t: 020 8830 4400 f: 020 8830 4300 Bu3000

Keniry Furniture/Construction

Unit C, Youghal Business Park, Park Mountain, Youghal, County Cork, Republic of Ireland e: wkdesign@eircom.net t: 00 353 24 20733 f: 00 353 24 20733 Co4000, Co8500, Co9100, Fu3000

Kenneth Rayson & Sons Ltd

Unit 8, Cringle Road, Stoke Rochford, Grantham, Lincolnshire NG33 5EG e: kennethraysonandsons@btconnect.com w: www.kennethraysonandsons.co.uk t: 01476 530179 f: 01476 530994 Jo4000

Kent Flush Doors & Joinery Ltd

Unit 2 Rose Lane Industrial Estate, Rose Lane, Lenham Heath, Maidstone, Kent ME17 2JN e: info@kentflushdoors.com w: www.kentflushdoors.com t: 01634 712451 f: 01634 713272 Do2500, Do4500, Do5000, Jo4000, Ve3000

Keops Ltd

Five Oaks Farm, Sheriffs Lench, Evesham, Worcestershire WR114SN e: ideas@logcabins.co.uk w: www.logcabins.co.uk t: 01386 861961 f: 01386 861961

Kestrel Timber Frame Ltd

Units 17-19, Spitfire Park, Northfield Road, Market Deeping, Peterborough, Cambridgeshire PE6 8GY e: chris.halliday@kestreltimberframe.co.uk w: www.kestreltimberframe.co.uk t: 01733 348173 f: 01778 348924 Ti2000

Kidlington Joinery

Unit 1 Caistor MUC, 19 South Street, Caistor, Lincolnshire LN7 6UB e: kate@kellymac.co.uk t: 01472 851732 Ar2000

High Street, Islip, Kidlington, Oxfordshire OX5 2RX e: tw@kidlingtonjoinery.co.uk w: www.kidlingtonjoinery.co.uk t: 01865 374880 f: 01865 379246

Kelsham Ltd

Kilbroney Timber Frame Ltd

Wilson House, John Wilson Business Park, Whitstable, Kent CT5 3QT e: mail@kelsham.co.uk t: 01227 276503 Ar2500, En2000

Valley Business Park, 48 Newtown Road, Rostrevor, Co Down BT34 3DA e: info@kilbroneytimberframe.com w: www.kilbroneytimberframe.com t: 028 4173 9077 f: 028 4173 9933 Ti1500

Timber 2020 Industry Yearbook

| 255

TRADA Members

Kind & Co (Builders) Ltd

Knevitt Consulting

Kingerlee Joinery

Knox Bhavan Architects LLP

Bridge House, 530 High Road, Leytonstone, London E11 3EQ e: mail@kind-build.com w: www.kind-build.com t: 020 8539 6923 f: 020 8558 7566 Bu3000, Ho3000

The Old Sunday School, Sladesbridge, Wadebridge, Cornwall PL27 6JB e: engineers@knevittconsulting.co.uk w: www.knevittconsulting.co.uk t: 01208 815400 f: 01208 815409 Co9100, Co9200, En2000

Lacey Hickie Caley Ltd

199 Southwark Bridge Road, London SE1 0ED w: www.leefitzgerald.co.uk t: 020 7089 6440 f: 020 7403 4421 Ar2000

Lakeland Timber Frame

School of Built Environment & Engineering, Northern Terrace, Leeds LS2 8AG e: j.rothera@leedsbeckett.ac.uk t: 0113 812 4081 Ed4000

69 Choumert Road, London SE15 4AR e: mail@knoxbhavan.com w: www.knoxbhavan.com t: 020 7635 9911 Ar2000

Unit 34a, Holme Mills Industrial Estate, Holme, Carnforth, Lancashire LA6 1RD e: info@lakelandtimberframe.co.uk w: www.lakelandtimberframe.co.uk t: 01524 782596 Ti2000

Kingfisher

Koppers

Laminated Timber Structures Ltd

Kingfisher

kritikoswood

Thomas House, Langford Locks, Kidlington, Oxfordshire OX5 1HR e: joinery@kingerlee.co.uk w: www.kingerlee.co.uk t: 01865 840000 B&Q House, Chestnut Avenue, Chandler's Ford, Eastleigh, Hampshire SO53 3LE e: david.underhill@kingfisher.com w: www.kingfisher.com t: 02380 690000 Bu3500, Re4000, Te3500 Kingfisher UK, 3 Sheldon Square, Paddington, London W2 6PX w: www.kingfisher.com t: 020 7372 8008

Kingfisher Consulting

Barley Castle Yard, Market Street, Hayfield, High Peak, Derbyshire SK22 2EP e: jonathan@kingfishergb.co.uk w: www.kingfishergb.co.uk t: 01663 741312 f: 0870 131 4559 Co9100, En2000

Kingswell Holdings Ltd

Unit 2, Beeches Industrial Estate, Littleton Road, Crawley, Winchester, Hampshire SO21 2QD e: david@homelodge.co.uk w: www.homelodge.co.uk t: 01962 881480

Kirk DeZigns Ltd

Holly Berry House, Main Road, Shavington, Crewe CW2 5DX e: office@kirk-designs.co.uk t: 01270 652436

Kirkwood Structures

113 North End, Meldreth, Royston, Hertfordshire SG8 6NX e: roger@kirkwoodstructures.com w: www.kirkwoodstructures.com t: 07841 470741 Co9100, Co9200, En2000, Lv1000

Kithurst Builders

Middle Barn, Springhead Farm, Amberley Road, Pulborough, West Sussex RH20 4HN e: antoine@kithurstbuilders.co.uk w: www.kithurstbuilders.co.uk t: 01903 746863 f: 01903 740541 Bu3000

KLH UK

2 The Canvas House, 25 Queen Elizabeth Street, London SE1 2NL e: office@klhuk.com w: www.klhuk.com t: 020 3031 8070 f: 020 7357 7271 Co9100, Co9200

256 |

Timber 2020 Industry Yearbook

Protim Solignum Ltd, Fieldhouse Lane, Marlow, Buckinghamshire SL7 1LS e: kpc@koppers.eu w: www.kopperspc.eu t: 01628 486644 f: 01628 476757 Cd1000, Fl1000, Pr1000, So1000, Ti7000 Factory 1, Tourlos Marpissa Paros, Cyclades 84400, Greece e: info@kritikoswood.gr w: www.kritikoswood.gr t: 00 30 2284 041504 f: 00 30 2284 028662 De2000, Do2500, Fl3500, Pa7200, Wi2000

kritikoswood

Factory 2, Misbourni Elaionas Thiva, Thiva 32200, Greece e: info@kritikoswood.gr w: www.kritikoswood.gr t: 00 30 2262 089891 f: 00 30 22840 28662 Do2500, Pa7200, Ti2000, Ti7500, Wi2000

KRP Building Consultancy Ltd 35 Buckingham Road, Bicester, Oxfordshire OX26 2NU e: kevin.prior21@gmail.com w: www.kevinrprior.co.uk t: 01869 246472 Co4000, Su1000

L

L & G Forest Products Ltd

Unit 3 Aerodrome Estate, Detling, Maidstone, Kent ME14 3HU e: sales@lgfp.co.uk w: www.lgfp.co.uk t: 01622 738246 f: 01622 738281

L F Webb & Partner

Rear of 62 Ravensworth Road, Doncaster, South Yorkshire DN1 2AR e: lee@laminatedtimberstructures.co.uk w: www.laminatedtimberstructures.co.uk t: 07802 693414 Ti1500

Lane Civil Engineering

Leicester School Of Architecture, The Gateway, Leicester, Leicestershire LE1 9BH w: www.dmu.ac.uk t: 0116 255 1551 f: 0116 257 7440 Ed4000

Len Smith Consulting Ltd

Langley Design

LFS Engineering Ltd

Langstaff Day Architects

Libra Design & Consultancy Ltd

Unit L (Gate 1), Chelworth Industrial Estate, Cricklade, Swindon, Wiltshire SN6 6HE e: info@langleydesign.co.uk w: www.langleydesign.co.uk t: 01793 759461 f: 01793 759462 Fu3000 Unit 321 Edinburgh House, 170 Kennington Lane, London SE11 5DP e: office@langstaffday.co.uk w: www.langstaffday.co.uk t: 020 3900 1727 Ar2000

Laurent Mot Ltd

9 Morris Blitz Court, Foulden Road, London N16 7UJ e: nic@laurentmot.com w: www.laurentmot.com t: 07773 355808 Ar2000

Lawrence Duck Architecture Centrespace, 6 Leonard Lane, Bristol BS1 1EA e: contact@lawrenceduck.co.uk w: www.lawrenceduck.co.uk t: 07425 152671 Ar2000, Ti1200

Lawrenson Associates

LABC Warranty

Leadon Timber Frame Ltd

The Design Studio, Emperor Way, Exeter Business Park, Exeter, Devon EX1 3QS e: postmaster@ex.lhc.net w: www.lhc.net t: 01392 444334 Ar2000, Ar2500, Co7000, La9000

Leicester School of Architecture

Beaumont Lodge, Warren Road, Brean, Burnmam on Sea, Somerset TA8 2RP e: lensmithconsulting@outlook.com w: www.lensmithconsulting.co.uk t: 07714 750709 Ar2000, Co4000, Co8800, En2000, He1000

The Globe, 142 Hardshaw Street, St. Helens, Merseyside WA10 1JT e: info@lawrensonassociates.co.uk w: www.lawrensonassociates.co.uk t: 01744 733446 Ar2000, Co4000, En2000

Lacey Hickie Caley Ltd

Leeds Beckett University

23 Leysdown Road, Mottingham, London SE9 3LY e: richard@lane-ce.com w: www.lane-ce.com t: 01206 392086

58 Broad Street, Lyme Regis, Dorset DT7 3QF e: richard.stratton@lfwebb.co.uk w: www.lfwebb.co.uk t: 01297 442678 Co4000, Su1000 2 Shore Lines Building, Shore Road, Birkenhead, Wirral CH41 1AU e: john.gilbert@labcwarranty.co.uk w: www.labcwarranty.co.uk t: 0854 054 0505 In2000

Lee Fitzgerald Architects

The Design Studio, Guardhouse, Royal William Yard, Plymouth, Devon PL1 3RP e: postmaster@lhc.net w: www.lhc.net t: 01752 669368 Ar2000, Ar2500, Co7000, La9000

79 Dunnamore Road, Cookstown, Co. Tyrone BT80 9NX e: info@leadontimberframe.com w: www.leadontimberframe.com t: 028 8675 1521 f: 028 8675 2060

Lee Evans Partnership

St John's Lane, Canterbury, Kent CT1 2QQ e: architects@lee-evans.co.uk w: www.lee-evans.co.uk t: 01227 784444 f: 01227 819102 Ar2000

Studio Four, Owen Well, Braisty Woods, Summerbridge, Harrogate, North Yorkshire HG3 4DN e: matt@lfsengineering.co.uk w: www.lfsengineering.co.uk t: 07713 029099 En2000 1 Appleby Close, Hoghton, Preston, Lancashire PR5 0BE e: libradesign@sky.com t: 01254 853676 En2000

Lignia Wood Company Ltd

Unit 10 Atlantic, Atlantic Industrial Estate, Barry, South Glamorgan CF63 3RF e: andy.pitman@lignia.com t: 01446 507072

Lilly Lewarne Architects

No. 1 Poltisco Wharf, Malpas Road, Truro, Cornwall TR1 1QH e: architects@lillylewarne.co.uk w: www.lillylewarne.co.uk t: 01872 261000

Limerick Institute of Technology

School Of The Built Environment, Limerick, Co Limerick, Republic of Ireland e: michael.beasley@lit.ie t: 00 353 61 208 208 Ed4000

Lionel Gregory Ltd Architects

Unit J1 Fulcrum Business Park, Vantage Way, Mannings Heath, Poole, Dorset BH12 4NU e: john.s@lionelgregory.co.uk w: www.lionelgregoryarchitects.co.uk t: 01202 723157 f: 01202 745464

Lissett Homes

Halifax Way, Pocklington Industrial Estate, The Airfield, York, North Yorkshire YO42 1NR e: chris.close@lissetthomes.co.uk w: www.lissetthomes.com t: 01759 302801 f: 01759 322159 Bu3000

www.trada.co.uk

TRADA Members

Liv Architects

Church Road, Flitcham, Kings Lynn, Norfolk PE31 6BU e: sasha@livarchitects.co.uk w: www.livarchitects.co.ukl t: 07725 656828 Ar2000

Local Homes - Low Carbon Living Airfield Drive, Aldridge, Walsall, West Midlands WS9 0GG e: info@localhomes.org.uk w: www.localhomes.co.uk t: 0300 111 7002 St8000, St8500, Ti2000

Lochplace Ltd

The Forge, Innishannon, Co Cork T12 W72X, Republic of Ireland e: rgs@lochplace.com t: 00 353 21 477 6677 f: 00 353 21 477 6063

Lonza Wood Protection

Wheldon Road, Castleford, West Yorkshire WF10 2JT e: timberprotectionadvice.ukca@lonza.com w: www.lonzawoodprotection.com/eu t: 01977 714000 Co8500, Pl3000, Pr1000, Ti7000

Lovell Partnerships Ltd

Marston Park, Tamworth, Staffordshire B78 3HN e: rob.worboys@lovell.co.uk w: www.morgansindall.com t: 01827 305600 Bu3000

Lovelock Mitchell Architects

3 Stanley Street, Chester, Cheshire CH1 2LS e: admin@lovelockmitchell.com w: www.lovelockmitchell.com t: 01244 404321 Ar2000

Lowe & Simpson Ltd

Vickers Close, Preston Farm Industrial Estate, Stockton, Cleveland TS18 3TD e: jh@ls-stairs.co.uk w: www.ls-stairs.co.uk t: 01642 677181 f: 01642 606458 Gl1000, St2000, St3000, Wo2000

Lowfield Timber Frames Ltd

M

M & K MacLeod

Kilmory Industrial Estate, Lochgilphead, Argyll PA31 8RR e: sales@m&kmacleod.co.uk w: www.mkmacleod.co.uk t: 01546 602989 f: 01546 603789 Bu3000, Ho3000

M K A Architects Ltd

Rosewood House, High Street, Hadlow, Tonbridge, Kent TN11 0EF e: design@mka-architects.co.uk t: 01732 850995 Ar2000, Co4000, Su1000

M L Kubik & Son Ltd

Chartered Civil & Structural Engineers, 17 Birchwood Drive, Ravenshead, Nottingham, Nottinghamshire NG15 9EE e: info@mlkubik.co.uk w: www.mlkubik.co.uk t: 01623 490330 f: 0870 836 2128 Co9100, En2000, Re4000

M T Daniels Ltd Carpentry & Joinery

Genesis Station Road, Great Ryburgh, Norfolk NR21 0DX e: info@mtdanielscarpentry.co.uk w: www.mtdanielscarpentry.co.uk t: 07825 915988 Cj1000

Mac Eye Projects Ltd

6 Blenheim Road, Watchfield, Oxfordshire SN6 8DG e: admin@maceyeprojects.com w: www.maceyeprojects.com t: 07393 507350

Maccreanor Lavington Ltd

15c Micawber Street, London N1 7TB e: uk@ml-architects.com w: www.maccreanorlavington.com t: 020 7336 7353

Maccreanor Lavington Ltd

Lowfield, Marton, Welshpool, Powys SY21 8JX e: darren.jarman@ltf.uk.com w: www.lowfieldtimberframes.co.uk t: 01743 892004 f: 01743 892003 Bu6800, Bu7000, St8500, Ti2000

77 Bastwick Street, Ground Floor, London EC1V 3PZ e: uk@ml-architects.com w: www.maccreanorlavington.com t: 020 7336 7353 f: 020 7336 7655 Ar2000

Loyn & Co Architects

Macdonald Wright Architects

88 Glebe Street, Penarth, Vale of Glamorgan CF64 1EF e: architecture@loyn.co.uk w: www.loyn.co.uk t: 029 2071 1432

Lucite International UK Ltd Wilton Centre, Redcar TS10 4RF e: robin.r.gibson@lucite.com w: www.luciteinternational.com t: 07885 239742 Mo0500

39 Parkholme Road, London E8 3AG e: mail@macdonaldwright.com w: www.macdonaldwright.com t: 020 7249 0791 Ar2000

Mace

155 Moorgate, London EC2M 6XB w: www.macegroup.com t: 020 3522 3000 Bu3000

Machined Timber Specialists

Unit 8, Block B, Bullford Business Campus, Kilcoole, County Wicklow, Republic of Ireland e: info@woodcomponents.ie w: www.woodcomponents.ie t: 00 353 1 281 2106 f: 00 353 1 281 2112 Ce1000, Co8700, Co9100

www.trada.co.uk

Maciver Consultancy Services Ltd

2a Steinish, Stornoway, Isle of Lewis HS2 0AA e: malcolm@maciverconsultancy.com w: www.maciverconsultancy.com t: 01851 704703 f: 01851 705753 Co9100, En2000

Mackellar Schwerdt Architects LLP The Old Library, Albion Street, Lewes, East Sussex BN7 2ND e: info@mackellarschwerdt.co.uk w: www.mackellarschwerdt.co.uk t: 01273 480608 f: 01273 480688 Ar2000, Co4000, Co8500, Co9300

Mackenzie Hughes Ltd

4 Old Tolbooth Wynd, Calton Road, Edinburgh, Midlothian EH8 8EQ e: rory@mackenziehughes.co.uk w: www.mackenziehughes.co.uk t: 0131 557 4966 f: 0131 557 9266 Bu3000

MacLeod & Jordan Consulting Engineers Ltd 16 Albert Street, Aberdeen, Aberdeenshire AB25 1XQ e: n.boscan@macleodjordan.co.uk w: www.macleodjordan.co.uk t: 01224 212555 Co4000, Co9100, En2000

Malaysian Timber Council

Weena 290, 10th floor, Rotterdam 3012 NJ, Netherlands e: council@mtc.com.my w: www.mtc.com.my

Malcolm Fryer Architects

Unit 7, The Ivories, 6 Northampton Street, London N1 2HY e: kf@mfryer-architects.com w: www.mfryer-architects.com t: 020 7354 7370

Manley Construction

Main Street, Duleek, Co Meath A92 Y263, Republic of Ireland e: damien@manleyconstruction.com w: www.manleyconstruction.com t: 00 353 41 982 3981 f: 00 353 41 982 3982 Ti2000

Mann Williams

7 Old King Street, Bath, Somerset BA1 2JW e: pjl@mannwilliams.co.uk w: www.mannwilliams.co.uk t: 01225 464419 f: 01225 448651

Marchese Partners

Unit 212, Metal Box Factory, 30 Great Guildford Street, Borough, London SE1 0HS e: sdean@marchesepartners.co.uk w: www.marchesepartners.com t: 020 3735 9755

Marcus Beale Architects

The Old Post Office, 1 Compton Road, Wimbledon, London SW19 7QA e: mba@marcus-beale.co.uk w: www.marcus-beale.co.uk t: 020 8946 4141

Margaret Steele Surveyor

Andridge Hill House, Spriggs Holly Lane, Radnage, High Wycombe, Buckinghamshire HP14 4DZ e: misfd@aol.com t: 01494 483517 Su1000

Mark Alford Design Ltd

Heatherlands, Bracken Lane, Storrington RH20 3HS e: office@markalforddesign.com t: 01903 740033

Mark Horton t/a Liberty Fire & Vision Units 1-2, Rosehill Business Park, 2-10 St Lukes Road, Southport, Merseyside PR9 0SH e: libertycontracts@talktalkbusiness.net w: libertyvision.co.uk t: 01704 544355 Do2500

Mark Thomas

75 Sketty Rd, Uplands, Swansea, West Glamorgan SA2 0EN e: m2thomas@btconnect.com t: 07572 446498

Marshall Specialist Joinery Ltd

The Old Railway Station, Samford Courtenay, Okehampton, Devon EX20 2SN e: admin@marshallspecialistjoinery.co.uk w: www.marshallspecialistjoinery.co.uk t: 01837 54189 Cj1000, Do2500, Jo4000, Wi2000

Marshall, William J & Partners 43 Palace Street, Westminster, London SW1E 5HL e: enquiries@williamjmarshall.co.uk w: www.williamjmarshall.co.uk t: 020 7592 1122 f: 020 7821 7837 Ar2000, Co4000, En2000

Martin Perry Associates

Suite 1, BFM House, The Parade, Liskeard, Cornwall PL14 6AF e: mail@mperryassociates.com w: www.mperryassociates.com t: 01579 345777 En2000

Martin Robinson Carpentry Ltd

The Whitewall Centre, White Wall Road, Medway City Estate, Rochester, Kent ME2 4DZ e: info@mrc-contractors.co.uk w: www.mrc-contractors.co.uk t: 01634 727763 f: 01634 727704 Bu3000, Ho3000, Ti1500

Masher Brothers

97-103 Florence Road, Lewisham, London SE14 6QL e: sales@masherbros.com w: www.masherbros.com t: 020 8691 1632

Mason Clark Associates

Unit E, Millshaw Business Living, Global Avenue, Beeston, Leeds LS11 8PR e: andy.thompson@masonclark.co.uk w: www.masonclark.co.uk t: 0113 277 9542 f: 0113 277 4738 Co4000, Co7000, Co9100, En2000, Su1000

MAST Architects

51 St Vincent Crescent, Glasgow, Strathclyde G3 8NQ e: mast@mastarchitects.co.uk w: www.mastarchitects.co.uk t: 0141 221 6834 f: 0141 221 8450 Ar2000, Ar2500, Ho4000

Maughan Reynolds Partnership 3 Gladstone Terrace, Gateshead, Tyne and Wear NE8 4DY e: mrp@maughanreynolds.co.uk t: 0191 478 3355 f: 0191 490 0331 Co4000, Co9100, En2000

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TRADA Members

MawsonKerr Architects

1 Charlotte Square, Newcastle-upon-Tyne, Tyne and Wear NE1 4XF e: info@mawsonkerr.co.uk w: www.mawsonkerr.co.uk t: 0191 230 1799 Ar2000

Maxwell & Company Architects and Designers Ltd

Larkfield, 23 Southside Road, Inverness, Inverness-shire IV2 3BG e: info@maxwellandco.co.uk w: www.maxwellandco.co.uk t: 01463 711676 f: 01463 711696 Ar2000, Co4000, Co8800, Co9300, He1000

mba architecture ltd

306 Lymington Road, Highcliffe, Christchurch, Dorset BH23 5ET e: matt@mbaukltd.co.uk t: 01590 624794

MBM Contracts Ltd

McKenzie Willis

22 Carden Place, Aberdeen, Aberdeenshire AB10 1UQ e: andy@mckenziewillis.co.uk t: 01224 639111 En2000

MEDITE SMARTPLY

Belview, Slieverue, Waterford X91 PX75, Republic of Ireland w: www.smartply.com t: 00 353 51 851 233 f: 00 353 51 851 130 Pa5700

MEDITE SMARTPLY

Persimmon House, Anchor Boulevard, Crossways Business Park, Dartford, Kent DA2 6QH e: sales@mdfosb.com w: www.mdfosb.com t: 01322 424900 f: 01322 424920 Fi2000, Md2000, Pa7200, Pa8000

Unit 5, Hatfield Regis Grange Estate, Hatfield Broad Oak, Bishop's Stortford, Hertfordshire CM22 7JZ e: kris@mbmcontracts.co.uk w: www.mbmcontracts.co.uk t: 01279 717937 f: 01279 717936 Bu3000

Melingoed Ltd

McAndrew Associates Ltd

Mercers Timber Frame Consultancy

3 Newell Close, Aylesbury, Buckinghamshire HP21 7FE e: info@mcandrewassociates.co.uk w: www.mcandrewassociates.co.uk t: 01296 398070

McCarthy, Rachel BSc MICE

8 Meadow Rise, North Waltham, Basingstoke, Hampshire RG25 2SU e: jjrmc@btinternet.com t: 01256 398292 En2000

McCartney Associates

1 Bonny Street, London NW1 9PE e: alan@mccartney.uk.com w: www.mccartney.uk.com t: 020 7485 3924 Co9100, Co9200, En2000

McColl Associates

1 Meadowbank Place, Edinburgh, Lothian EH8 7AW e: mail@mccollassoc.co.uk w: www.mccollassoc.co.uk t: 0131 555 0721 f: 0131 555 0723 Co4000, Co9200, En2000, Ti1200

McColm Civil & Structural Engineers Ltd

Mission Hall, 2A Waterloo Road, Prestwick, South Ayrshire KA9 2AA e: info@mccolm-design.com w: www.mccolm-design.com t: 01292 737224 En2000

McCurdy & Co Ltd

Manor Farm, Stanford Dingley, Reading, Berkshire RG7 6LS e: info@mccurdyco.com w: www.mccurdyco.com t: 0118 974 4866 f: 0118 974 4375 Co4000, Co8500, Re6000, Ti2500

McGregor McMahon (Scotland) Ltd 2 Castle Court, Carnegie Campus, Dunfermline, Fife KY11 8PB e: km@mmaeng.com w: www.mcgregor-mcmahon.com t: 01383 734905 Co4000

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Timber 2020 Industry Yearbook

Station Road, Newcastle Emlyn, Carmarthenshire SA38 9BX e: trusses@melingoed.co.uk w: www.melingoed.com t: 01239 711070 f: 01239 711645 Gl1000, Jo4000, Pa7500, Ti7600, Tr4000

2 Albert Villas, Station Road, Mayfield, East Sussex TN20 6BN e: info@mercerstimberframes.co.uk w: www.mercerstimberframes.co.uk t: 01435 874815 Co9200, Ho3000, Ti1200, Ti1500

Merronbrook Ltd

Hazeley Bottom, Hartley Wintney, Hook, Hampshire RG27 8LU e: sales@merronbrook.co.uk w: www.merronbrook.co.uk t: 01252 844747 f: 01252 845304 Ti1200, Ti1500, Ti2000, Tr4000

Metclad Contracts Ltd

Hazelford Way, Newstead Village, Nottingham, Nottinghamshire NG15 0DG e: admin@metclad.co.uk w: www.metclad.co.uk t: 01623 720032 f: 01623 721393

Method Architecture

12 Montpelier, Edinburgh, Lothian EH10 4NA e: mail@methodarchitecture.co.uk w: www.methodarchitecture.co.uk t: 07753 766342 Ar2000

Meyer Timber Ltd

44 Berth, Tilbury Dock, Essex RM18 7HP e: sales.tilbury@meyertimber.com w: www.meyertimber.com t: 0844 391 4211 f: 0845 873 5010 Md3000, Pa6200, Pa7500, Pl3000, Ti7500

Meyer Timber Ltd

Forth Ports, J Shed, South Shore Road, Grangemouth FK3 8TT e: sales.grangemouth@meyertimber.com w: www.meyertimber.com t: 01324 484488 f: 01324 665 588 Md3000, Pa6200, Pa7500, Pl3000, Ti7500

Meyer Timber Ltd

Meyer House, Hadleigh Park, Grindley Lane, Blythe Bridge, Stoke on Trent, Staffordshire ST11 9LW e: sales.stoke@meyertimber.com w: www.meyertimber.com t: 0845 873 5000 f: 0845 873 5005 Md3000, Pa6200, Pa7500, Pl3000, Ti7500

Meyer Timber Ltd

Vincients Road, Bumpers Farm Industrial Est, Chippenham, Wiltshire SN14 6NQ e: sales.chippenham@meyertimber.com w: www.meyertimber.com t: 0844 391 4144 f: 0844 391 4155 Md3000, Pa6200, Pa7500, Pl1000, Ti7500

MFM Joinery Ltd

Keelagh, Ballyhaise, County Cavan, Republic of Ireland e: msmith@mfmjoinery.ie w: www.mfmjoinery.ie t: 00 353 49 433 8023 f: 00 353 49 433 8767 Do2500, Jo4000, Ma2500, St3000, Wi2000

Michael Baigent Orla Kelly Ltd Unit 2, Burgoyne House, Great West Quarter, Ealing Road, Brentford, Middlesex TW8 0GB e: mail@mbok.co.uk w: www.mbok.co.uk t: 020 8568 4871 f: 020 8568 4775 En2000

Michael Barclay Partnership LLP

Chronicle House, 5th Floor, 72-78 Fleet Street, London EC4Y 1HY e: london@mbp-uk.com w: www.mbp-uk.com t: 020 7240 1191 f: 020 7240 2241 Co4000, Co9100, En2000

Michael Hadi Associates

1st Floor, 14-18 Old Street, London EC1V 9BH e: all@mha-consult.co.uk w: www.mha-consult.co.uk t: 020 7375 6340 Co9100, En2000, Te4000, Ti1200

Michaelis Boyd

108 Palace Gardens Terrace, London W8 4RT e: info@michaelisboyd.com w: www.michaelisboyd.com t: 020 7221 1237 f: 020 7221 0130 Ar2000

Middlesex University

Department of Design, Engineering and Mathematics, TG19a, London NW4 4BT e: t.yang@mdx.ac.uk w: www.mdx.ac.uk t: 020 8411 3427 Ed4000

Mid-Sussex Timber Co Ltd

Ballards Yard, Park Road, Crowborough, East Sussex TN6 2QS e: timber@mstc.co.uk w: www.mstc.co.uk t: 01892 652725 f: 01892 653280

Mid-Sussex Timber Co Ltd College Road, Haywards Heath, West Sussex RH16 1QW e: timber@mstc.co.uk w: www.mstc.co.uk t: 01444 413413 f: 01444 415779 Bu1000, Pa7500, Ti7500

Mid-Sussex Timber Co Ltd

Railway Approach, East Grinstead, West Sussex RH19 1BY e: timber@mstc.co.uk w: www.mstc.co.uk t: 01342 317470 f: 01342 410850

Mid-Sussex Timber Co Ltd

Station Road, Forest Row, East Sussex RH18 5EL e: timber@mstc.co.uk w: www.mstc.co.uk t: 01342 822191 f: 01342 823052 Bu1000, Mo5000, Pa7500, Pr1000, Ti7500

Mike Parkes Associates

54 Haden Park Road, Cradley Heath, West Midlands B64 7HE t: 01384 562120 f: 01384 562120 Ar2000, Co4000, En2000

Mikhail Riches

15-29 Windsor Street, London N1 8QG e: info@mikhailriches.com w: www.mikhailriches.com t: 020 7608 1505 f: 020 8616 4582 Ar2000

Millworks Timber Specialists

Parsonage Farm, 112 High Street, Bottisham, Cambridgeshire CB25 9BA e: info@millworks.co.uk w: www.millworks.co.uk t: 01223 967733 Cd1000, De2000, Ma2500, Mo4500, Mo5000

Milner Associates

129 Cumberland Road, Bristol BS1 6UY e: guy@milnerassociates.co.uk w: www.projectmilner.co.uk t: 0117 945 3208 f: 0117 929 3095 Co9100, Co9200, Re4000, Te3500, Te4000

Milton Architects Ltd

Old Stables Court, The Parade, Marlborough, Wiltshire SN8 1NE e: mike@miltonarchitects.co.uk w: www.miltonarchitects.co.uk t: 01672 514354 Ar2000

Mime Architects Ltd

49-50 East Street, Taunton, Somerset TA1 3NA w: www.mimearchitects.co.uk t: 01823 530614 Ar2000, Co4000, Fu3000, He1000, Ti1200

MiTek Industries Ltd

MiTek House, Grazebrook Industrial Park, Peartree Lane, Dudley, West Midlands DY2 0XW e: jmarcroft@mitek.co.uk w: www.mitek.co.uk t: 01384 451400 f: 01384 451411 So1000, St8000, Tr4000, Tr5000

Mitre Oak Ltd

Unit 4 Open Barn BC, Main Road, Kempsey, Worcester, Worcestershire WR8 0EA e: info@mitreoak.co.uk w: www.mitreoak.co.uk t: 01905 828139

ML Consulting

23 Musters Road, West Bridgford, Nottingham, Nottinghamshire NG2 7PP e: info@ml-consulting.co.uk w: www.ml-consulting.co.uk t: 0115 982 7992 f: 0115 982 7992 En2000

www.trada.co.uk

TRADA Members

MLTS Ltd

55 Mill Road, Lode, Cambridge, Cambridgeshire CB25 9EN e: mlts@btopenworld.com t: 01223 812644 En2000

ModularWise Ltd

Units A & B Benson Building, Ludlow Road, Knighton LD7 1LF e: mike.rutland@modularwise.co.uk w: www.modularwise.co.uk t: 01547 316124

Moduloft

Unit 1, Bridge Road, Brompton on Swale, North Yorkshire DL10 7HS e: sales@moduloft.co.uk w: www.moduloft.co.uk t: 0800 195 3855 Bu3000

Modulus

Devonshire House, Aviary Court, Basingstoke, Hampshire RG24 8PE e: design@modulus.ltd w: www.modulus.ltd t: 01256 768588 Co9100, En2000, Ti1200

Mole Architects

52 Burleigh Street, Cambridge, Cambridgeshire CB1 1DJ e: studio@molearchitects.co.uk w: www.molearchitects.co.uk t: 01223 913012 Ar2000

Momentum Consulting Engineers 30-32 Westgate Buildings, Bath, Somerset BA1 1EF e: richard@momentumengineering.com w: www.momentumengineering.com t: 01225 444194 Co9100, Co9200, En2000, Ti1200

Moreys

Trafalgar Road, Newport, Isle of Wight PO30 1PS e: matt.bricknell@jewson.co.uk w: www.jewson.co.uk t: 01983 525111 f: 01983 520815 Jo2000, Sa6500, Ti2000, Ti7500, Tr4000

Morgan Carey Architects Ltd The Goods Shed, Sandford Lane, Wareham, Dorset BH20 4DX e: mca@morgancarey.co.uk w: www.morgancarey.co.uk t: 01929 557878 f: 01929 554035 Ar2000

Morgan Sindall Construction and Infrastructure Ltd 1650 Parkway, Solent Business Park, Fareham PO15 7AH e: tim.elliott@morgansindall.com w: www.morgansindall.com t: 01489 585100

Morgan Sindall Construction and Infrastructure Ltd 1st Floor, 1 Falcon Gate, Shire Park, Welwyn Garden City AL7 1TW e: richard.everett@morgansindall.com w: www.morgansindall.com t: 01707 294250

Morgan Sindall Construction and Infrastructure Ltd 2 George Mann Way, Hunslet, Leeds LS10 1DR e: simon.bannister@morgansindall.com w: www.morgansindall.com t: 0113 205 5430

www.trada.co.uk

Morgan Sindall Construction and Infrastructure Ltd

Morgan Sindall Construction and Infrastructure Ltd

Morgan Sindall Construction and Infrastructure Ltd

Morgan Sindall Construction and Infrastructure Ltd

Morgan Sindall Construction and Infrastructure Ltd

Morgan Sindall Construction and Infrastructure Ltd

24 Garrett Road, Lynx Trading Estate, Yeovil BA20 2TJ e: richard.robson@morgansindall.com w: www.morgansindall.com t: 01935 403700

2nd Floor, St Vincent House, Cutler Street, Ipswich IP1 1LL e: reception.ipswich@morgansindall.com w: www.morgansindall.com t: 01473 255931 Bu3000

4215 Waterside Centre, Birmingham Business Park, Solihull B37 7YN e: david.richards@morgansindall.com w: www.morgansindall.com t: 0121 329 1500

Morgan Sindall Construction and Infrastructure Ltd

4th Floor, London Gate, 72 Dyke Road Drive, Brighton BN1 6AJ e: emma.gibson@morgansindall.com w: www.morgansindall.com t: 01273 506222 f: 01273 540424

Morgan Sindall Construction and Infrastructure Ltd Albany Business Park, Cabot Lane, Poole BH17 7BX e: guy.meadows@morgansindall.com w: www.morgansindall.com t: 01202 606800

Morgan Sindall Construction and Infrastructure Ltd Anchorage 2, Salford Quays, Manchester M50 3YW e: brian.coleridge@morgansindall.com w: www.morgansindall.com t: 0161 874 1000

Morgan Sindall Construction and Infrastructure Ltd Babraham Road, Sawston, Cambridge CB22 3LJ e: michael.cowan@morgansindall.com w: www.morgansindall.com t: 01223 836611

Morgan Sindall Construction and Infrastructure Ltd Corporation Street, Rugby, Warwickshire CV21 2DW t: 01788 534 500

Morgan Sindall Construction and Infrastructure Ltd Envoy House, 61 Longbridge Road, Plymouth PL6 8LU e: andrew.faulkner@morgansindall.com w: www.morgansindall.com t: 01752 672621

Morgan Sindall Construction and Infrastructure Ltd First Floor, Laxford House, Cradlehall Business Park, Inverness IV2 5GH e: mark.miller@morgansindall.com w: www.morgansindall.com t: 01463 572377

Morgan Sindall Construction and Infrastructure Ltd Ground Floor, 69-75 Thorpe Road, Norwich NR1 1UA e: richard.smithson@morgansindall.com w: www.morgansindall.com t: 01603 666669

Invicta House, 108-114 Golden Lane, London EC1Y 0TG e: lisa.gould@morgansindall.com w: www.morgansindall.com t: 020 7549 3260

River House, Ynys Bridge Court, Cardiff CF15 9YY e: paul.mckee@morgansindall.com w: www.morgansindall.com t: 029 2081 1398 f: 029 2081 4092

Trilogy One, 11 Woodhall, Eurocentral, Motherwell ML1 4YT e: andrew.walker@morgansindall.com w: www.morgansindall.com t: 01698 738600

Morgan Sindall Construction and Infrastructure Ltd

Unit 9 Castle Park Road, Whiddon Valley, Barnstaple EX32 8WS e: richard.hallt@morgansindall.com w: www.morgansindall.com t: 01271 377777

Morgan Sindall Construction and Infrastructure Ltd Unit H6, Ashtree Court, Nottingham Business Park, Nottingham NG8 6PY w: www.morgansindall.com

Morgan Sindall Group PLC

Kent House, 14-17 Market Place, London W1W 8AJ e: scott.gregory@morgansindall.com w: www.morgansindall.com t: 020 7307 9200 Bu3000

Morgan Sindall Property Services 20 Don Road, Sheffield, South Yorkshire S9 2UB e: donna.stevens@morgansindall.com w: morgansindallpropertyservices.com t: 0114 282 0220

Morgan Timber

Knight Road, Rochester, Kent ME2 2BA e: info@morgantimber.co.uk w: www.morgantimber.co.uk t: 01634 290909 f: 01634 290800 De2000, Ha7000, Mo4500, Ti0800

Morph Structures

221-222 Shoreditch High Street, London E1 6PJ e: mail@morphstructures.com w: www.morphstructures.com t: 020 3978 7300

Morrish & Partners

85a Whiting Street, Bury St Edmunds, Suffolk IP33 1NX e: jonathan@morrish-bury.co.uk w: www.morrish.co.uk t: 01284 761444 f: 01284 750337 Co9100, En2000, Ti1200

Mott MacDonald Ltd

8 - 10 Sydenham Road, Croydon, Surrey CR0 2EE w: www.mottmac.com t: 020 8774 2000 f: 020 8681 5706

MR Partnership Ltd

41 - 42 Foley Street, London W1W 7TS e: mail@ch-architects.com w: www.ch-architects.com t: 020 7253 2526 Ar2000

MSM Consulting Engineers

52 Commercial End, Swaffham Bulbeck, Cambridge, Cambridgeshire CB25 0NE e: msm@msmconsult.plus.com t: 0844 414 5258 f: 08721 106078 En2000

MTE (Leicester) Ltd

8 Sunningdale Road, Leicester, Leicestershire LE3 1UX e: info@mte-leicester.co.uk w: www.mte-leicester.co.uk t: 0116 2321 777 f: 0116 2321 888 Ti1200, Ti1500, Ti2000, Ti2700, Tr4000

Muir Timber Systems Ltd

Muir House, Belleknowes Industrial Estate, Inverkeithing, Fife KY11 1HY e: dwyse@muir-group.co.uk w: www.muirgroup.co.uk t: 01383 416191 f: 01383 410193

Myriad Construction Ltd

1 Glenleigh Park Rd, Bexhill on Sea, East Sussex TN39 4EH e: peter@myriadconstruction.co.uk w: www.myriadconstruction.co.uk t: 0845 450 7952 Bu3000, Co9200, Ho3000, Ti1200, Ti1500

N

N J Montgomery

Yanchep, Rue des Cornus, St Martin, Guernsey GY4 6PZ, Channel Islands e: njm.carpenters@virgin.net t: 07781 115909

N P Walford Architectural Designs 44 Ash Grove, Headington, Oxford, Oxfordshire OX3 9JL e: npwalford@outlook.com t: 07860 700318

Napper Architects Ltd

3 Waterloo Square, Newcastle upon Tyne, Tyne and Wear NE1 4DR e: gdodd@napperarchitects.co.uk w: www.napperachitects.co.uk t: 0191 261 0491 Ar2000

Nash Partnership LLP

Somerset Coalhouse, 23a Sydney Buildings, Bath, Avon BA2 6BZ e: mail@nashpartnership.com w: www.nashpartnership.com t: 01225 442424 f: 01225 442484 Ar2000

National Specifications UK

Suite D2, HLC Business Centre 5, The Quay, Old Riverport, St Ives, Cambridgeshire PE27 5AR e: stephen.walton@nationalspecifications.com w: www.ns-uk.com t: 020 3961 7769

Natural Systems Ltd

1 & 2 Commercial Street, Settle, North Yorkshire BD24 9HE e: sales@natur-al.com w: www.natur-al.com t: 01729 823126

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TRADA Members

Naturally Beautiful Homes

20 - 22 Wenlock Road, London N1 7GU e: info@naturallybeautifulhomes.com w: naturallybeautifulhomes.com t: 07538 915715

NBJ (London) Ltd

Airfield Park, Sibbertoft Road, Husbands Bosworth, Lutterworth, Leicestershire LE17 6JA e: sharon.burke@nbjlondon.co.uk w: www.neilburkejoinery.co.uk t: 01858 880166 Do2500, Do4500, Fu4000, Jo4000, Wi2000

NBS

The Old Post Office, St Nicholas Street, Newcastle upon Tyne, Tyne and Wear NE1 1RH e: info@thenbs.com w: www.thenbs.com t: 0191 244 5541 f: 0191 232 5714 As1000, So1000

NDM (Metal Roofing & Cladding) Ltd 29 Clarence Street, 1st & 2nd Floor, Staines upon Thames, Surrey TW18 4SY e: enquiries@ndmltd.com w: www.ndmltd.com t: 020 8991 7310 f: 020 8991 7311 Bu3000

Neatwood Homes Ltd

Unit 6, Westwood Industrial Estate, Pontrilas, Herefordshire HR2 0EL e: sales@neatwoodhomes.co.uk w: www.neatwoodhomes.co.uk t: 01981 240860 f: 01981 240255 Bu6800, Ti1200, Ti2000

Neil Ferguson Chartered Architect

12 Skinidin, Dunvegan, Isle of Skye IV55 8ZS e: neil@skyearchitect.com t: 01470 521555 Ar2000

Nene Valley Fire & Acoustic Ltd

2a New Street, Irthlingborough, Northamptonshire NN9 5UG e: enquiries@nenevalleyfire.com w: www.nenevalleyfireandacoustic.com t: 01933 650650 f: 01933 650001 Bu3000

Network Rail Infrastructure Ltd The Quadrant, Elder Gate, Central Milton Keynes MK9 1EN w: www.networkrail.co.uk t: 01908 781000

New Build Modular Ltd

24 Mendip View, Wick, South Gloucestershire BS30 5PY e: richard@newbuildmodular.co.uk w: newbuildmodular.co.uk t: 0117 9372708 Bu3000

Newcastle University

School of Architecture, Planning & Landscape, The Quadrangle, Newcastle-upon-Tyne, Tyne & Wear NE1 7RU e: ben.bridgens@ncl.ac.uk w: www.ncl.ac.uk t: 0191 208 6409 Ed4000

NHBC

N H B C Standards and Technical, Davy Avenue, Knowlhill, Milton Keynes, Buckinghamshire MK5 8FP e: technical@nhbc.co.uk w: www.nhbc.co.uk t: 0844 633 1000 f: 0844 633 0022 Wa1000

NHG Timber Ltd

4 Eagle House, Cranleigh Close, Sanderstead, Croydon CR2 9LH e: sales@nhgtimber.co.uk w: www.nhgtimber.co.uk t: 020 8651 4030 De2000, Ha7000, Mo4500, Ti0500, Ti0800

Nicholas Hare Architects LLP

Norfolk Timber Frames Ltd

10 Banyards Place, Runcton Holme, Kings Lynn, Norfolk PE33 0AL e: tdixon@norfolktimberframes.co.uk w: www.norfolktimberframes.co.uk t: 07884 220871 Bu3000, Ti1500

Norman Ltd

19 Commercial Buildings, St Helier JE1 1BU, Jersey e: sales@normanlimited.com w: www.normans.je t: 01534 883388 f: 01534 883399 Cd1000, De2000, Ti0800, Ti7600, Ti7700

Norscot Joinery Ltd

3 Barnsbury Square, London N1 1JL e: info@nicholashare.co.uk w: www.nicholashare.co.uk t: 020 7619 1670 f: 020 7619 1671 Ar2000, Co8800

Bower Workshops, Bower, Wick, Caithness KW1 4TL e: info@norscot.co.uk w: www.norscot.co.uk t: 01955 641303 f: 01955 641207 Bu5000, Do2500, Jo4000, Ti2000, Wi2000

Nick Kenchington Ltd

Northscape (Highland) Ltd

Spangle Cottage, The Lane, Kingston, Corfe Castle, Dorset BH20 5LJ e: nickkenchington@btinternet.com t: 01929 480524 Co9100, En2000

Nick Midgley Design

The Studio, Brock Cottage, 20 Dewsbury Road, Rastrick, Brighouse, West Yorkshire HD6 3QB e: nick@nickmidgleydesign.co.uk w: www.nickmidgleydesign.co.uk t: 07711 182313 Ar2000

Nicks & Co (Timber) Ltd

Canada Wharf, Bristol Road, Gloucester, Gloucestershire GL1 5TE e: phil@nickstimber.co.uk w: www.nickstimber.co.uk t: 01452 300159 f: 01452 307682 De2000, Mo4500, Mo5000, Ti7700, Tr4000

Norbord

Morayhill, Dalcross, Inverness, Inverness-shire IV1 7JQ e: pauline.fraser@norbord.net w: www.norbord.com t: 01463 792424 f: 01463 791764 Or2000

Norbord

Station Road, Cowie, Stirlingshire FK7 7BQ e: salesorders@norbord.net w: www.norbord.com t: 01786 812921 f: 01786 817143 Md2000, Pa7200, Pa8200, Pa8700, Pa9300

Norder Design Associates

Beech Lawn, Green Lane, Belper, Derbyshire DE56 1BY e: enquiries@norder.co.uk w: www.norder.co.uk t: 01773 824414 f: 01773 823305 Co7000, Co8800, Co9100, En2000, Ti1200

Nordic Structures

100-1100, avenue des Canadiens-de-Montreal, Montreal, Quebec H3B 2S2, Canada e: info@nordic.ca w: www.nordic.ca t: 001 514 871 8526

23 Ash Hill, Evanton, Highland IV16 9XB e: info@northscape.scot w: www.northscape.scot t: 07776 252782

Northumbria University Library Library Building, Sandyford Road, Newcastle upon Tyne NE1 8ST e: lrjournals@northumbria.ac.uk t: 0191 227 4150 Ed4000

Nottage Joinery & Timber Merchants Village Farm Industrial Estate, Pyle, Bridgend, Mid Glamorgan CF33 6BJ e: sfry@nottagejoinery.co.uk w: www.nottagejoinery.co.uk t: 01656 745959 f: 01656 745083 Jo4000, Mo4500, Ti7500, Ti7600, To0500

Novus Property Solutions Ltd

Five Towns House, Hillside, Festival Way, Stoke-on-Trent, Staffordshire ST1 5SH e: paul.gibson@novussolutions.co.uk w: www.novussolutions.co.uk t: 01782 237249 Bu3000

NPS South West Ltd

Venture House, 1 Capital Court, Bittern Road, Sowton Industrial Estate, Exeter, Devon EX2 7FW t: 01392 351000 f: 01392 351111 Ar2000, En1500, La9000, Su1000, Su2000

NPTC Group of Colleges

Dwr-y-Felin Road, Neath, Neath Port Talbot SA10 7RF e: ian.lumsdaine@nptcgroup.ac.uk w: www.nptcgroup.ac.uk t: 01639 648420 Ed4000

NPTC Group of Colleges

Penlan, Brecon, Powys LD3 9SR w: www.nptcgroup.ac.uk t: 01686 614400

NPTC Group of Colleges

St. Davids Close, Llansamlet, Morriston, Swansea SA6 8QL w: www.nptcgroup.ac.uk t: 01639 648120

Nu Build

O

Oak Frames Direct

Coldharbour Studios, Woods Corner, East Sussex TN21 9LQ e: sales@oakframesdirect.com w: www.oakframesdirect.com t: 01424 838500 Bu6800, Oa1000, Ti2000, Ti2500

Oak House Consultants Ltd

Clematis, Sheviock, Torpoint, Cornwall PL11 3EL e: info@oakhouseconsultants.com t: 020 7193 6298 f: 0700 607 8912 Co4500, Co7000, Co7500, Co8700

Oakenwoods Group Ltd

Latchmere House, Grovewood Drive South, Maidstone, Kent ME14 5BX e: alex.lambert@oakenwoods.com w: www.oakenwoods.com t: 07872 529192

Oakleaf Bespoke Joinery Services Oakleaf House, Finepoint Way, Kidderminster, Worcestershire DY11 7FE e: joinery@oakleafcs.com w: www.oakleafcs.com t: 0800 169 5454 Jo4000

Oakleaf Building Surveyors

John Adams House, 29 Castle Street, Reading, Berkshire RG1 7SB e: contact@oakleafbs.co.uk w: www.oakleafbs.co.uk t: 0118 956 0525 f: 0118 919 5113 Su1000

Oakridge Building Company

Brookfield, Ballybawn, Kilmacanogue, Co Wicklow, Republic of Ireland e: oakridge365@gmail.com w: www.tsiltd.ie t: 00 353 1 282 8460 f: 00 353 1 286 6446 Bu3000, Ti1500

Oakwood Timberframe Ltd

The Ambrose, Pant Y Dwr, Brynamman, Ammanford SA18 1BE e: info@oakwoodtimberframe.co.uk w: www.oakwoodtimberframe.co.uk t: 01269 824243 Ca0500, Cj1000

Oban Joinery Services Ltd

15 Aray Gardens, Oban, Argyll PA34 4JX e: obanjoinery@btinternet.com w: www.obanjoineryservices.co.uk t: 07831 618288 Bu3000

O'Dwyer, Nicholas Ltd

Nutgrove Office, Nutgrove Avenue, Dublin 14, Republic of Ireland e: rcrowe@nodwyer.com w: www.nicholasodwyer.com t: 00 353 1 296 9000 f: 00 353 1 296 9001 Co4000, Co5000, En2000

Offsite Design Solutions Ltd

c/o The Mews House, Atherton Hall, Old Hall Mill Lane, Manchester M46 0RR e: contact@offsitedesignsolutions.co.uk t: 07850 880427

Pilgrim House, High Street, Billericay CM12 9XY e: pwilliamson@swan.org.uk t: 01277 315245

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www.trada.co.uk

TRADA Members

OFP Timber Framed Homes Ltd 1 Montagu Road, Discovery Park, Sandwich, Kent CT13 9FA e: info@ofptimberframe.com w: www.ofptimberframe.com t: 01304 613298 f: 01304 619635 Gl2000, St8000, St8500, Ti2000

O'Keefe Scanlon Ltd

Broadmede House, Farnham Business Park, Weydon Lane, Farnham, Surrey GU9 8QT e: graham.bicknell@osparchitecture.com w: www.osparchitecture.com t: 01252 267878 Ar2000

ONCE Civil & Structural Ltd

4 Bridgecourt Office Park, Walkinstown Ave, Dublin 12 D12 Y981, Republic of Ireland e: mail@once.co w: www.once.co t: 00 353 1 426 4883 En2000, Ti1200

Optimal Structural Engineers Ltd 105 Godwin Road, Hove, East Sussex BN3 7FS e: t.zhou@optimalengineers.co.uk w: www.optimalengineers.co.uk t: 01273 420269 En2000

Oregon Timber Frame Ltd

Portland Buildings, Dunsdale Road, Selkirk, Scottish Borders TD7 5EB e: info@oregon.co.uk w: www.oregon.co.uk t: 01750 724940 f: 01750 725876 Co9100, St8000, Ti0200, Ti0500, Ti2000

O'Reilly Design Ltd

34 Crieff Road, Wandsworth, London SW18 2EA e: topni@sky.com t: 07979 693590 En2000

Original Box Sash Windows Company, The

29/30 The Arches, Alma Road, Windsor, Berkshire SL4 1QZ e: info@boxsash.com w: www.boxsash.com t: 01753 858196 f: 01753 857827 Jo4000, Wi2000, Wi3000

Original Box Sash Windows Company, The

Unit 2, Merthyr Tydfil Industrial Park, Pentrebach, Merthyr Tydfil CF48 4DR e: info@boxsash.com w: www.boxsash.com t: 01443 694500 f: 01443 691257

ORMS Architecture Design

Owens Galliver Architects LLP

10 High Street, Pangbourne, Reading, Berkshire RG8 7AB e: oga@owensgalliver.co.uk w: www.owensgalliver.co.uk t: 0118 984 1344 f: 0118 984 1389

Oxford Oak

Paling Joiners

P

Panelco Ltd

P G Marshall & Sons Ltd

Marshall House, 124 Middleton Road, Morden, Surrey SM4 6RW e: paul@marshallpg.co.uk w: www.pgmarshallbuilders.co.uk t: 020 8646 8844 f: 020 8687 4103

P J Lewis Ltd

2 Willow Close, Bromham, Bedfordshire MK43 8BX e: peter@peterjlewis.co.uk w: www.peterjlewis.co.uk t: 01234 485560 En2000

P M Law Design

20 Irongate, Cathedral Quarter, Derby, Derbyshire DE1 3GP e: peter.law@pmlawdesign.co.uk t: 01332 497473 En2000

P M Mendes (International) Ltd

30 Leafield Way, Leafield Industrial Estate, Corsham, Wiltshire SN13 9SW e: lucyf@pm-mendes.co.uk w: www.pm-mendes.co.uk t: 01225 811411 f: 01225 812112

P S H Design

6 Gloucester Avenue, Nuthall, Nottingham, Nottinghamshire NG16 1AL e: info@pshdesign.co.uk w: www.pshdesign.co.uk t: 0115 927 1200

P Thomas Associates Ltd

29 Bridge Road, Ickford, Aylesbury, Buckinghamshire HP18 9HU e: info@pthomasassociates.com w: www.pthomasassociates.com t: 01844 339455 Co9200, Ti1500

PAC Studio Ltd

Outward Images Ltd

Pacific European Timber Agency Ltd

Overbury PLC & Morgan Lovell 77 Newman Street, London W1T 3EW e: steve.smith@msfitout.com w: www.morgansindall.com t: 020 7307 9000 Bu3000

www.trada.co.uk

5a Angel Courtyard, High Street, Lymington, Hampshire SO41 9AP e: wendy@PADstudio.co.uk w: www.padstudio.co.uk t: 01590 670780 f: 01590 672816 Ar2000

The Wood Centre, Little Wittenham Road, Long Wittenham, Abingdon, Oxfordshire OX14 4QT e: info@oxfordoak.co.uk w: www.oxfordoak.co.uk t: 07788 757275 Fu3000, Fu4000, Ga3000, La7000, St5000

1 Oliver's Yard, 55-71 City Road, London EC1Y 1HQ e: orms@orms.co.uk w: www.orms.co.uk t: 020 7833 8533 f: 020 7837 7575 Ar2000

Orchard House, 73 Hinton Way, Great Shelford, Cambridge, Cambridgeshire CB22 5AH e: camilla@outward-images.co.uk t: 01223 528395

PAD Studio

25 Lower Clanbrassil Street, Dublin 8 DO8 Y53H, Republic of Ireland e: graham@pacstudio.ie w: www.pacstudio.ie t: 00 353 87 237 1003 Ar2000 White Cross, Lancaster, Lancashire LA1 4XQ e: trading@petaluk.com w: www.petal-timber.co.uk t: 01524 382273 f: 01524 841068 De2000, Fl3000, Ha7000, Mo4500, Ti0500

80 Church Street, Hull, East Yorkshire HU9 1DT e: info@palingjoiners.co.uk w: www.palingjoiners.co.uk t: 01482 223633 f: 01482 586199 Do4500, Do5000, Jo4000, Jo5000, Ti2500

Pasquill

Orchard Court 3, Harry Weston Road, Coventry, West Midlands CV3 2TT e: marketing@pasquill.co.uk w: www.pasquill.co.uk t: 024 7643 8691 Ro2000, Sa6500, Tr4000

Passivhaus Homes

Alexander House, 106 Pembroke Road, Ruislip HA4 8NW e: info@passivhaushomes.co.uk w: www.passivhaushomes.co.uk t: 0345 257 1500 Ar2000

Patchett Joinery Ltd

Hadleigh Park, Grindley Lane, Blythe Bridge, Stoke on Trent ST11 9LW e: sales@panelco.com w: www.panelco.com t: 01782 392100 f: 01782 388 877 La4000, Pa6200, Pa7500, Pa8500, Ti7500

Ryefield Works, 180 Highgate Road, Clayton Heights, Bradford, West Yorkshire BD13 1DS e: info@patchett-joinery.co.uk w: www.patchett-joinery.co.uk t: 01274 882331 f: 01274 882332 Do2500, Wi2000

Panorama Contractors Ltd

Paul Drinkall Associates Ltd

113 Seymour Grove, Old Trafford, Manchester M16 0LD e: panorama_contractorsltd@hotmail.com t: 0161 232 7676 Bu3000

Paper Project Architecture and Design Ltd The Sawmills, Duntshill Road, London SW18 4QL e: ben@paperproject.co.uk w: www.paperproject.co.uk t: 020 8947 0420 Ar2000

Paragon Acoustic Consultants Ltd 12b Southview Business Park, Marsack Street, Caversham, Reading, Berkshire RG4 5AF e: patricks@paragonacoustics.com t: 0118 944 844 Co3000

Paramount Structural Engineers Ltd 25a High Street, Moreton in Marsh, Gloucestershire GL56 0AF e: info@gncengineering.co.uk w: www.paramount.engineering t: 01386 258888 Co9100, Co9200, En2000

Paramount Timber Frame Ltd Shed 7 Chatham Docks, Chatham, Kent ME4 4SR e: info@paramounttimberframe.com w: www.paramounttimberframe.com t: 01634 893821 Ho3000, Ti1500, Ti2000

Parkins, R G & Partners Ltd

Meadowside, Shap Road, Kendal, Cumbria LA9 6NY e: mail@rgparkins.com w: www.rgparkins.com t: 01539 729393 f: 01539 740609 Co9100, En2000

Parkside Combined Technical Services Ltd The Coach House, Grange Road, West Cowick, Goole, East Yorkshire DN14 9EL e: paul@pcts.info w: www.pcts.info t: 01405 862002 Bu3000

63 Avill, Hockley, Tamworth, Staffordshire B77 5QF e: pdaengineers@tiscali.co.uk t: 01827 281547

Pavlovskis Lister Ltd

Unit 12, Sea King Drive, Auckley, Doncaster, South Yorkshire DN9 3QR e: info@pavlister.co.uk w: www.pavlister.co.uk t: 01302 302328 Co9100, Co9200, En2000, Ti1200

PDP London

5-6 Eccleston Yards, London SW1W 9AZ e: info@pdplondon.com w: www.pdplondon.com t: 020 7730 1178 f: 0845 280 5071 Ar2000

Peak Designs

80 Orme Road, Kingston KT1 3SB e: n.peak@sky.com w: www.peakdesign.co.uk t: 020 8949 5325

Pedder & Scampton Architects

United House, North Road, London N7 9DP e: gill@pedderscampton.com w: www.pedderscampton.com t: 020 7607 4156 Ar2000

PEFC UK Ltd

Sheffield Technology Parks, Cooper Buildings, Arundel Street, Sheffield S1 2NS e: info@pefc.co.uk w: www.pefc.co.uk t: 0114 307 2334 En4000, En5000

Pembroke Design Ltd

5-7 Picton Place, Haverfordwest SA61 2LE e: julian@pembrokedesign.co.uk w: www.pembrokedesign.co.uk t: 01437 764135 f: 01437 764471 Ar2000, Co4000, Co8800, Su1000, Su2000

Pennine Timber Frame (UK) Ltd

Birch House, Doctor Fold Lane, Heywood, Lancashire OL10 2QE e: info@penninetimberframe.co.uk w: www.penninetimberframe.co.uk t: 01706 361876 f: 01706 621213 Bu6000, Co8800, Ho3000, Ti1500, Ti2000

Timber 2020 Industry Yearbook

| 261

TRADA Members

Penwarden Hale

Bury Knowle House, North Place, Oxford, Oxfordshire OX3 9HY e: chris@penwardenhale.co.uk w: www.penwardenhale.co.uk t: 01865 591457 f: 01865 591457

Peter Dann Ltd

9 Charlotte Street, London W1T 1RG t: 020 7637 7870 f: 020 7637 7880 Co4000, Co8800, En2000, Ti1200

Peter Dann Ltd

86 Epsom Road, Guildford, Surrey GU1 2BX e: guildford@perega.co.uk w: www.perega.co.uk t: 01483 565886 Co4000, Co7000, En2000, En3000, Su1000

Newton House, Cambridge Road, Barton, Cambridge CB23 7WJ e: pd@peterdann.com w: www.peterdann.com t: 01223 264688 f: 01223 264680 Co4000, Co8800, En2000, Ti1200

Perkins & Perry Ltd

Peter Scott Architecture Ltd

Perega

Wheal Chance, Radnor Road, Scorrier, Redruth, Cornwall TR16 5EQ e: jon@perkinsandperry.co.uk w: www.perkinsandperry.co.uk t: 01209 820983 Gl2000, Ti2000, Tr4000

Peter Brett Associates LLP

The Old Rectory, Narrow Lane, St Enoder, Summercourt, Newquay, Cornwall TR8 5DF e: iampetescott@yahoo.co.uk t: 01726 861149 Ar2000

Peter Tyers Associates

2nd Floor, 160 West George Street, Glasgow G2 2HG e: scotland@peterbrett.com w: www.peterbrett.com t: 0141 352 2360

Mulberry House, 19 Far Lane, Normanton-on-Soar, Loughborough, Leicestershire LE12 5HA e: petertyers@ivixor.net t: 01509 842280 En2000

Peter Brett Associates LLP

Phase 8 Development Company

33 Bowling Green Lane, London EC1R 0BJ e: london@peterbrett.com w: www.peterbrett.com t: 020 3824 6600

Peter Brett Associates LLP

Caversham Bridge House, Waterman Place, Reading, Berkshire RG1 8DN e: reading@peterbrett.com w: www.peterbrett.com t: 0118 950 0761 f: 0118 959 7498 Co4000, Co5000, Co8800, En2000, En3000

Peter Brett Associates LLP

Exchange Place 3, 3 Semple Street, Edinburgh, Midlothian EH3 8BL e: edinburgh@peterbrett.com w: www.peterbrett.com t: 0131 297 7010

Peter Brett Associates LLP First Floor, Southern House, 1 Cambridge Terrace, Oxford, Oxfordshire OX1 1RR e: oxford@peterbrett.com w: www.peterbrett.com t: 01865 410000

Peter Brett Associates LLP

Lakeside House, Blackbrook Business Park, Blackbrook Park Avenue, Taunton, Devon TA1 2PX e: taunton@peterbrett.com w: www.peterbrett.com t: 01823 445150 f: 01823 445151

Peter Brett Associates LLP

Telford House, Fulbourn, Cambridge, Cambridgeshire CB21 5HB e: cambridge@peterbrett.com w: www.peterbrett.com t: 01223 882000 f: 01223 881888

Peter Brett Associates LLP Waterloo House, Victoria Square, Birmingham B2 5TB e: birmingham@peterbrett.com w: www.peterbrett.com t: 0121 633 2900

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Timber 2020 Industry Yearbook

North Mersey Business Centre, Woodward Road, Liverpool L33 7UY e: office@p8dc.co.uk w: www.p8dc.co.uk t: 0151 728 4590 Ti2000, Tr4000

Philip Hawkey Architectural Design Windy Ridge, Crown Road, Whitemoor, St Austell, Cornwall PL26 7XH e: hawkey1990@gmail.com w: www.ph-plans.co.uk t: 01726 824948 Ar2500, Co4000, Su1000, Ti1200

Piercy & Co

The Centro Building, 39 Plender Street, London NW1 0DT e: info@piercyandco.com w: www.piercyconner.co.uk t: 020 7424 9611 Ar2000

Pinelog Ltd

Riverside Business Park, Bakewell, Derbyshire DE45 1GS e: admin@pinelog.co.uk w: www.pinelog.co.uk t: 01629 814481 f: 01629 814634 Bu3000, Bu6000, Bu6800

Pittilla Bell Consulting Ltd

1 Ivanhoe Terrace, Chester le Street, Co Durham DH3 3JB e: chrislawson@pittillabell.co.uk w: www.pittillabell.com t: 0191 388 7923 f: 0191 388 1883 Co4000, Co7000, Co8800, Co9100, En2000

PiveteauBois

La Vallee - BP7, Sainte Florence, Essarts en Bocage 85140, France e: elisabeth.piveteau@piveteau.com w: www.piveteaubois.com t: 00 44 7821 807788 Cd1000, De2000, Fe2000, Gl1000, Sa8000

PJM Associates Ltd

The Vicarage, Dymock Road, Much Marcle, Herefordshire HR8 2NL e: patrick@pjmassociates.co.uk t: 01531 660455 f: 01531 660530

PlanArch Design Ltd

Premier Timber Design Services Ltd

Plandescil Ltd

Premium Timber Products Ltd

54 Kingsway, Bishop Auckland, Co. Durham DL14 7JF e: neil@planarchdesign.co.uk w: www.planarchdesign.co.uk t: 01388 608166 f: 01388 608168 Connaught Road, Attleborough, Norfolk NR17 2BW e: pdc@plandescil.co.uk w: www.plandescil.co.uk t: 01953 452001 f: 01953 456955 Co5000, En2000

18 Honeylands, Portishead, Bristol, Avon BS20 6RB e: phil@premiertimberdesign.co.uk w: www.premiertimberdesign.co.uk t: 01275 563531 Ar2500 Forge Lane, Dewsbury, West Yorkshire WF12 9EJ e: info@premiumtimber.co.uk w: www.premiumtimber.co.uk t: 01924 466256

Premium Timber Products Ltd

Frankley Lodge Road, Northfield, Birmingham, West Midlands B31 5PX e: graham@roscrowden.com w: www.planningdrawings.net t: 07720 985425

Vincients Road, Bumpers Farm Industrial Est, Chippenham, Wiltshire SN14 6NQ e: sales.chippenham@meyertimber.com w: www.meyertimber.com t: 0844 391 4144 f: 0844 391 4155 Md3000, Pa6200, Pa7500, Pl3000, Ti7500

Playdale Playgrounds

Prewett Bizley

PMS Oxford

Price & Myers

Pollard Architectural

Price & Pierce Forest Products Ltd

Pollard Thomas Edwards Architects

Price & Pierce Forest Products Ltd

Planning Drawings Ltd

Haverthwaite, Ulverston, Cumbria LA12 8AE e: enquiries@playdale.co.uk w: www.playdale.co.uk t: 01539 531561 f: 01539 531539 Pg1000 Unit 10 Burcot Farm, Burcot, Abingdon, Oxfordshire OX14 3GW e: info@pmsoxford.co.uk w: www.pmsoxford.co.uk t: 01865 407554 Bu3000 5 Barras Street, Liskeard, Cornwall PL14 6AD e: jon_pollard@btconnect.com w: www.pollardarchitectural.co.uk t: 01579 347361 Ar2500, Co4000, Co9100, Su1000, Ti1200 Diespeker Wharf, 38 Graham Street, London N1 8JX e: mail@ptea.co.uk w: www.ptea.co.uk t: 020 7336 7777 f: 020 7336 0770 Ar2000

Portland Consulting Engineers

10 Bankside, The Watermark, Gateshead, Tyne and Wear NE11 9SY e: info@portlandconsulting.co.uk w: www.portlandconsulting.co.uk t: 0191 461 9770 f: 0191 460 3028 En2000

Powys County Council

Neuadd Maldwyn, Severn Road, Welshpool, Powys SY21 7AS e: dafydd.evans@powys.gov.uk w: www.powys.gov.uk/en t: 07775 704531

PPK Timber Designs Ltd

2nd Floor, 5 Boulevard, Weston-super-Mare, North Somerset BS23 1NN e: pmk@ppkltd.co.uk w: www.ppkltd.co.uk t: 01934 633915 Ar2500, Co4000, Co9100, Co9200, Ti1200

Premier Guarantee

2 Shore Lines Building, Shore Road, Birkenhead, Wirral CH41 1AU e: john.gilbert@premierguarantee.co.uk w: www.premierguarantee.co.uk t: 0844 412 0888 In2000

2nd Floor, 118a London Wall, London EC2Y 5JA e: rp@prewettbizley.com w: www.prewettbizley.com t: 07779 256904 Ar2000 37 Alfred Place, London WC1E 7DP e: mail@pricemyers.com w: www.pricemyers.com t: 020 7631 5128 f: 020 7462 1390 Co4000, En2000 Premier House, Aberford Road, Garforth, Leeds LS25 2LD e: hull@price-pierce.co.uk w: www.price-pierce.co.uk t: 01482 214610

3rd Floor, Griffin House, West Street, Woking, Surrey GU21 6BS e: woking@price-pierce.co.uk w: www.price-pierce.co.uk t: 01483 221800 Jo3000, Pa8000, So6000, Ti0800, Ti7700

Prime Meridian

26a Ganton Street, London W1F 7QZ e: dminns@prime-meridian.co.uk w: www.prime-meridian.co.uk t: 020 7287 9917 Ar2000, En2000

Pringle Richards Sharratt Architects

Studio 4, 33 Stanley Street, London SE11 4AA e: ian.sharratt@prsarchitects.com w: www.prsarchitects.com t: 020 7793 2843 f: 020 7793 2829 Ar2000

Pringuer-James

Overseas House, Elm Grove, London SW19 4HE e: sean@pjce.com w: www.pjce.com t: 020 8940 4159 Co9100, En2000

Probyn Miers

Hamilton House, 1 Temple Avenue, Temple, London EC4Y 0HA e: info@probyn-miers.com w: www.probyn-miers.com t: 020 7583 2244 Ar2000

www.trada.co.uk

TRADA Members

Proctor and Matthews Ltd

7 Blue Lion Place, 237 Long Lane, London SE1 4PU e: info@proctorandmatthews.com w: www.proctorandmatthews.com t: 020 7378 6695 f: 020 7378 1372 Ar2000

Property Maintenance Services Directorate

Cornerstone, 2 Edward Street, Stockport, Greater Manchester SK1 3NQ e: feedback@stockporthomes.org w: www.stockporthomes.org t: 0161 217 6016 Ar2000, Ar2500, Ho4000, Su1000

PRP

Ferry Works, Summer Road, Thames Ditton, Surrey KT7 0QJ e: surrey@prp-co.uk w: www.prp-co.uk t: 020 8339 3600 Ar2000, Co5000, Co8800, La9000, Re4000

Public Sector Prison Industries

Her Majesty’s Prison and Probation Service, 14th Floor post point 6, Southern House, Wellesley Grove, Croydon CR0 1XG e: david.turner01@hmps.gsi.gov.uk t: 0300 047 5239

public works ltd

Studio 9, Aspire Point, 210 High Street, London E15 2JA e: info@publicworksgroup.net w: www.publicworksgroup.net t: 07711 407173

PWP Architects

61 South Street, Havant, Hampshire PO9 1BZ e: design@pwp-architects.com w: www.pwp-architects.com t: 023 9248 2494 f: 023 9248 1152

Q

Q T F Services

36a Finnard Road, Rathfriland, Newry, County Down BT34 5BL e: raymond@qtfhomes.co.uk w: www.qtfhomes.co.uk t: 028 4063 2494 f: 028 4063 2495 Ti2000

QED Structures Ltd

7 Hove Manor Parade, Hove Street, Hove, East Sussex BN3 2DF e: ianw@qedstructures.co.uk w: www.qedstructures.co.uk t: 01273 358035 f: 01273 207451 En2000

Quadrant Approved Inspectors 11 Red Lion Street, Stamford, Lincolnshire PE9 1PA e: info@quadrantai.co.uk w: www.quadrantai.co.uk t: 01780 460464 f: 01780 460006

Quadrant Approved Inspectors 18b Charles Street, London W1J 5DU e: info@quadrantai.co.uk w: www.quadrantai.co.uk t: 020 7769 6797

www.trada.co.uk

Quadrant Approved Inspectors

Rainford Timber Co Ltd

Quadrant Harmon Consulting Ltd

Ramage Young Design Ltd

The Coach House, Desford Hall, Leicester Lane, Desford, Leicester LE9 9JJ e: info@quadrantai.co.uk w: www.quadrantai.co.uk t: 0116 412 0150 Bu3500 2nd Floor, 39 Margaret Street, London W1G 0JQ e: stuart.harmon@quadrantharmon.co.uk w: www.quadrantharmon.co.uk t: 020 7637 2770 En2000

Queen's Furniture Ltd

KW 19D Industrial Estate, Corradino PLA 3000, Malta e: info@queensfurniture.com w: www.queensfurniture.com t: 00 356 21 662940

Quercus Parket Ltd

Ljukovo, Nikola Tesla Bb, Srem 22321, Serbia e: goran.nisevic@quercusparket.co w: www.quercusparket.com t: 07715 309341 f: 00 381 22 58 77 50

Quinn Hardwoods Ltd

Unit 242 Holly Road, Western Industrial Est, Dublin D12 AD73, Republic of Ireland e: info@thetimberyard.ie w: www.thetimberyard.ie t: 00 353 87 779 4914 Cd1000, Ki3000, St2000, Ti0200, Ti0500

R

R & K Design and Build

Unit 3A, Headlands Trading Estate, Swindon, Wiltshire SN2 7JQ e: info@r-k-designandbuild.com w: www.r-k-designandbuild.com t: 07943 546725 Bu3000

R Elliott Associates Ltd

Dennett House, Brighton Road, Sway, Lymington, Hampshire SO41 6EB e: info@rea-ltd.co.uk w: www.rea-ltd.co.uk t: 01590 683176 f: 01590 683533

R H Developments (Boston) Ltd

184 Freiston Road, Boston, Lincolnshire PE21 0JR e: becky-rhdevelopmentsltd@hotmail.co.uk t: 01205 369381

R P Winstone Ltd

Hilltop, Evenjobb, Presteigne, Powys LD8 2SG e: info@rpwinstone.co.uk w: www.rpwinstone.co.uk t: 01547 560252 f: 01547 560409 Co9200

R.G.B. Design and Build

The Hagues, Burnby, York YO42 1RS e: bthg@hotmail.co.uk t: 07769 870230

RAAM Construction Ltd

Unit 7, Peerglow Estate, Queensway, Enfield, Middlesex EN3 4SB e: info@raamconstruction.co.uk w: www.raamconstruction.co.uk t: 020 8804 5214 Bu3000

Water Street, Bamber Bridge, Preston, Lancashire PR5 6QH e: info@rainfordtimber.co.uk w: www.rainfordtimber.co.uk t: 01772 802500 Ti1200, Ti1500, Ti2000 9000 Academy Park, 51 Gower Street, Glasgow, Lanarkshire G51 1PR e: info@rypglasgow.co.uk w: www.ramageyoung.com t: 0141 226 2262 f: 0141 226 2264 En2000

Ramboll

Ramsay and Chalmers

Chattan Mews Offices, 18 Chattan Place, Aberdeen AB10 6RD e: jdeigan@ramsaychalmers.co.uk w: www.ramsaychalmers.co.uk t: 01224 560700 f: 01224 560701 Ce2000, Co9100, En2000, Ti1200

Ramsay Timber Ltd

Skull House Lane, Appley Bridge, Wigan, Lancashire WN6 9DR e: info@ramsaytimber.co.uk w: www.ramsaytimber.co.uk t: 01257 255701 f: 01257 255811 Ha7000, La6000, Ma2500, Ti0200, Ti7500

40 Queen Square, Bristol, Avon BS1 4QP e: bristol@ramboll.co.uk w: www.ramboll.co.uk t: 0117 929 5200 f: 0117 929 5239 Co4000, Co9100, Co9200, En1500, En2000

RandS Interior Design Ltd

Ramboll

27-33 Brighton Road, Redhill, Surrey RH1 6PP e: rathbornes@rathbornes.co.uk w: www.rathbornes.co.uk t: 01737 773321

240 Blackfriars Road, London SE1 8NW e: london@ramboll.co.uk w: www.ramboll.co.uk t: 020 7631 5291 f: 020 7323 4645 Co4000, Co9100, Co9200, En1500, En2000

Ramboll

2nd Floor, Sovereign House, 158 West Regent Street, Glasgow G2 4RL e: glasgow@ramboll.co.uk w: www.ramboll.co.uk t: 0141 225 1000 Co4000, Co9100, Co9200, En1500, En2000

Ramboll

2nd Floor, The Exchange, St John Street, Chester, Cheshire CH1 1DA e: chester@ramboll.co.uk w: www.ramboll.co.uk t: 01244 311855 Co4000, Co9100, Co9200, En2000, Ti1200

Ramboll

3rd Floor, Halsbury House, Chancellor Court, 21 The Calls, Leeds LS2 7EH e: leeds@ramboll.co.uk w: www.ramboll.co.uk t: 0113 204 2880 Co4000, Co9100, Co9200, En1500, En2000

Ramboll

3rd Floor, Kings Court, 2-4 Exchange Street, St Mary's Gate, Manchester M2 7HA e: manchester@ramboll.co.uk w: www.ramboll.co.uk t: 0161 827 1890 Co4000, Co9100, Co9200, En1500, En2000

Ramboll

Carlton House, Ringwood Road, Woodlands, Southampton SO40 7HT e: southampton@ramboll.co.uk w: www.ramboll.co.uk t: 023 8081 7500 Co4000, Co9100, Co9200, En1500, En2000

Ramboll

Christchurch House, 30 Waterloo Street, Victoria Square, Birmingham B2 5TJ e: birmingham@ramboll.co.uk w: www.ramboll.co.uk t: 0121 230 1650 Co4000, Co9100, Co9200, En2000

Ramboll

Terrington House, 13 - 15 Hills Road, Cambridge CB2 1NL e: cambridge@ramboll.co.uk w: www.ramboll.co.uk t: 01223 369220 f: 01223 356215 Co4000, Co9100, Co9200, En2000, Ti1200

40 Bishops Wharf, 51 Parkgate Road, London SW11 4NA e: registration@randsinteriordesign.com t: 07470 311000

Rathborne & Roche Ltd

Rawcliffe Associates Ltd

The Paddocks, Follifoot, Harrogate, North Yorkshire HG3 1EA e: admin@rawcliffeassociates.com t: 01423 879808 f: 01423 879525 Co9100, En2000

Rawlins Paints

Northspeed House, Moorview, Holbeck, Leeds, West Yorkshire LS11 9NF e: sales@rawlinspaints.com w: www.rawlinspaints.com t: 0113 2455450 Co1700, Pa3000, Pa4000, St1000

Raymond Simpson Associates Ltd 7 Mid Stocket Road, Aberdeen, Aberdeenshire AB15 5JL e: info@raymondsimpson.com w: www.raymondsimpson.co.uk t: 01224 636707

RB Doors & Joinery Ltd

Unit A2 Larkfield Trading Estate, New Hythe Lane, Larkfield, Kent ME20 6SW e: info@rbdoors.co.uk w: www.rbdoors.co.uk t: 01622 792015/6 f: 01622 882035 Do2500, Do4500, Jo4000, La6000, Pa8700

Red Co-operative

3 Corkland Road, Manchester M21 8UP e: charlie@red.coop w: red.coop t: 07976 793795

Red Realisations Ltd

Coldhayes, Liss, Hampshire GU33 6LL e: rjfdale@gmail.com t: 07545 293331 Bu3000

Redwood Design Ltd

Unit 23, Duleek Business Park, Duleek, Co Meath A92 X9WE, Republic of Ireland e: john@redwood-design.com w: www.redwood-design.com t: 00 353 1 988 0610 Fu3000, Fu4000, Jo5000, Ki3000, St3000

Timber 2020 Industry Yearbook

| 263

TRADA Members

Renfrewshire Council

Development & Housing Services, Cotton Street, Paisley, Renfrewshire PA1 1JD e: roy.mclean@renfrewshire.gov.uk t: 0141 618 6218 Go2000, Lo1000

reSAWN TIMBER co.

306 Keystone Drive, Telford, Bucks PA 18969, USA e: sales@resawntimberco.com w: www.resawntimberco.com t: 00 1 215 709 2001

Rhys Llwyd Davies - Architect | Pensaer

Swyddfa Heulwen, 29 Y Stryd Fawr, Y Bala, Gwynedd LL23 7AG e: post@rhysllwyddavies.co.uk t: 01678 521450 Ar2000

Riach Partnership Ltd

RMA Surveyors Ltd

Foinavon, Churn Road, Compton, Newbury, Berkshire RG20 6PP e: richard@rmasurveyors.co.uk t: 01635 579208

RMJ Homes Ltd

The Barn, Llyswen, Brecon, Powys LD3 0UP e: richard@rmjhomesltd.co.uk w: www.rmjhomesltd.co.uk t: 01982 560751 Ti1500, Ti2000

RNLI

West Quay Road, Poole, Dorset BH15 1HZ e: crefoy@rnli.org.uk w: www.rnli.org.uk t: 01202 663251 f: 01202 663343 As1000, Co8800, En2000

Robert Bird Group

200 Bath Street, Glasgow, Lanarkshire G2 4HG e: mail@riach.co.uk w: www.riach.co.uk t: 0141 353 1230

Level 1 Harling House, 47-51 Great Suffolk St, London SE1 0BS e: enquiries@robertbird.com w: www.robertbirdcom t: 020 7633 2880 En2000

Richard Griffiths Architects

Robert Danielson

5 Maidstone Mews, 72-76 Borough High St, London SE1 1GN e: admin@rgarchitects.com w: www.rgarchitects.com t: 020 7357 8788 f: 020 7403 7887 Ar2000

Richard Morton Architects Ltd

7 Chestnut Avenue, Blyth, Northumberland NE24 1PF e: robertdanielson01@yahoo.co.uk w: www.rldanielson.co.uk t: 07960 954059 Cj1000

Robert E Fry & Associates Ltd

70 Cowcross Street, London, Greater London EC1M 6EJ e: yarema@rm-architects.com w: www.rm-architects.com t: 020 3179 9030 Ar2000

45 Bridgeman Terrace, Wigan, Lancashire WN1 1TT e: ref@refa.co.uk w: www.refa.co.uk t: 01942 826020 f: 01942 230816 Ar2500, Co4000, En2000

Riddick and Son

Robert Millerchip Designs Ltd

17/19 Main Street, Haugh of Urr, Castle Douglas, Dumfries and Galloway DG7 3YA e: office@davah.co.uk t: 01556 660227

Rider Levett Bucknall UK Ltd 60 New Broad Street, London, Greater London EC2M 1JJ w: www.rlb.com t: 020 7398 8300 Ar2500

Ring Tree Projects Ltd

White Cottage, Main Street, Hillam, Yorkshire LS25 5HH e: j.blaza@ringtree.org t: 07769 616043 Bu3000

RLH Architectural Design Solutions

16 Main Street, Fishguard, Pembrokeshire SA65 9HJ e: design@rlharchitectural.com w: www.rlharchitectural.com t: 01348 435004/006 Ar2500

RMA Architects

320C Highgate Studios, 53-79 Highgate Road, London NW5 1TL e: j.lewinski@rmaarchitects.co.uk w: www.rmaarchitects.co.uk t: 020 7284 1414 Ar2000

264 |

Timber 2020 Industry Yearbook

The Studio, 38 Launde Park, Little Bowden, Market Harborough, Leceistershire LE16 8BH e: design@rmdstudio.co.uk t: 01858 466517 Ar2000

Robert Rowett Architectural Services

2b Old Amenity Building, Restormel Industrial Estate, Liddicoat Road, Lostwithiel, Cornwall PL22 0HG e: enquiries@rr-as.co.uk w: www.rr-as.co.uk t: 01208 873323 Ar2000, Ar2500, Co4000, Co7000, Ti1200

Robert Stone Associates

Consulting Civil & Structural Engineers, Eleven Mile Lane, Suton, Wymondham, Norfolk NR18 9JL e: mail@rstoneassociates.co.uk w: www.rstoneassociates.co.uk t: 01953 601800 f: 01953 601594 Co4000, Co8800, Co9100, En2000, Su1000

Robert Wynter & Partners Ltd Book House, Vincent Lane, Dorking, Surrey RH4 3HW e: julia@rwpltd.com w: www.rwpltd.com t: 01306 879875 f: 01306 741799 En2000

Robertson Timber Engineering Ltd

10 Perimeter Road, Pinefield, Elgin IV30 6AE e: mike.turner@robertson.co.uk w: www.robertson.co.uk/business/robertsontimber-engineering t: 01343 549786 Ti1200, Ti2000, Ti2500

Robertson Timber Engineering Ltd

Robertson House, Castle Business Park, Stirling, Stirlingshire FK9 4TZ e: mike.turner@robertson.co.uk w: www.robertson.co.uk/business/robertsontimber-engineering t: 01786 431600 Ti1200, Ti2000, Ti2500

Rothwells Consulting Engineers 17 La Motte Street, St Helier, Jersey JE2 4SY, Channel Islands e: admin@rothwells-consulting.com w: rothwells-consulting.com t: 01534 734585

Roughan & O'Donovan

Arena House, Arena Road, Sandyford, Dublin 18, Republic of Ireland e: info@rod.ie w: www.roughanodonovan.com t: 00 353 1 294 0800 f: 00 353 1 294 0820

Royal School of Military Engineering

71 Queensway, London W2 4QH e: info@robinleearchitecture.com w: www.robinleearchitecture.com t: 020 3368 6724

Professional Engineering Wing, Brompton Barracks, Chatham, Kent ME4 4UG t: 01634 822322 f: 01634 822362 Ed4000

Rodrigues Associates

RPC Architectural Design Ltd

Robin Lee Architecture

1 Amwell Street, London EC1R 1UL e: mervyn@rodriguesassoicates.com w: www.rodriguesassociates.com t: 020 7837 1133 En2000

Roger Casey Associates Ltd

12 Stanley Road, Heaton, Bolton, Lancashire BL1 5JZ e: contact@rpcad.co.uk w: www.rpcad.co.uk t: 07909 119580 Ar2000

Ty Mansel, 6 Mansel Street, Carmarthen, Carmarthenshire SA31 1PX e: r.casey@rca-eng.co.uk w: www.rca-eng.co.uk t: 01267 222646 f: 01267 221377 Co4000, Co9100, Co9200, En2000, Ti1200

RPS

Rogerson and Protheroe Construction Ltd

RSK Environment Ltd

Suite 30, 2nd Floor, Chessington Business Centre, Cox Lane, Chessington, Surrey KT9 1SD e: info@rogersonandprotheroe.co.uk w: rogersonandprotheroe.co.uk t: 020 3044 2490 f: 020 8391 9046 Cj1000

Ronnie & Associates Pte Ltd 65 Jalan Greja, Singapore 488928, Singapore e: rc8636@gmail.com t: 00 65 6225 7128

Root London

Noble House, Capital Drive, Linford Wood, Milton Keynes, Buckinghamshire MK14 6QP e: rpsww@rpsgroup.com w: www.rpsgroup.com t: 01908 669898 Ar2000, Co5000, En1500, En2000, La9000 18 Frogmore Road, Hemel Hempstead, Hertfordshire HP3 9RT e: jrwilliams@rsk.co.uk w: www.rsk.co.uk t: 01442 437500 f: 01442 437550

Rushmoor Engineering Services

Sandy Farm Business Centre, The Sands, Farnham, Surrey GU10 1PX e: doug@rushmooreng.co.uk w: www.rushmooreng.co.uk t: 01252 782366 Co9100, Co9200, En2000, Ti1200

Russell-Hughes Cyf

Unit 3, Parsons Green Depot, Parsons Green Lane, London SW6 4HH e: info@root-london.com w: www.root-london.com t: 020 3411 2689

56 Bridge Street, Llangefni, Anglesey LL77 7H e: russellhughes@btinternet.com w: www.russellhughes.co.uk t: 01248 722333 f: 01248 750600

Rossi Long Consulting

RWA Consulting Engineers

Rotafix (Northern) Ltd

RWO Associates

16 Meridian Way, Yarmouth Road, Norwich, Norfolk NR7 0TA e: simon.rossi@rossilong.co.uk w: www.rossilong.co.uk t: 01603 706420 f: 01603 706421 En2000, Su1000 Rotafix House, Abercraf, Swansea, West Glamorgan SA9 1UR e: sales@rotafix.co.uk w: www.rotafix.co.uk t: 01639 730481 f: 01639 730858 Ad1000, Fa1000, Re3000, Re4000, Re6000

8 Station Approach, Wendover, Buckinghamshire HP22 6BN e: engineer@rwaconsulting.co.uk w: www.rwaconsulting.co.uk t: 01296 624924 f: 01296 696066 Co4000, En2000

19 - 20 Brenkley Way, Newcastle upon Tyne, Tyne and Wear NE13 6DS e: info@rwo.group w: rwo.group t: 0191 258 5632 En2000

Rotho Blaas SRL

Via dell'Adige 2/1, 1-39040 Cortaccia (BZ) 1-39040, Italy e: info@rothoblaas.com w: www.rothoblaas.com t: +39 0471 818400/044 De2000, Fa1000, Ma1500, Ro2000, Va0500

www.trada.co.uk

TRADA Members

S

S C E G Ltd

The Five Roads, Jordanstown, Lusk, Co Dublin, K45 HX94, Republic of Ireland e: connect@sceg.ie w: www.sceg.ie t: 00 353 1 849 0999 Co4000, Co9100, Co9200, En2000

S R Timber

Nunn Brook Road, Huthwaite, Sutton-in-Ashfield, Nottinghamshire NG17 2HU e: sales@sr-timber.co.uk w: www.sr-timber.co.uk t: 01623 446800 Ro2000, Sa8000, Ti0800

S.Gurd Property Solutions Ltd

17 Napier Road, Maidenhead, Berkshire SL6 5AR e: simongurd@sgurdpropertysolutions.co.uk t: 07818 440876 Su1000

Safeguard - Roxil

Redkiln Close, Horsham, West Sussex RH13 5QL e: eric.rirsch@safeguardeurope.com w: www.safeguardeurope.com t: 01403 210204

Safety Cases Ltd

19 Darling House, Clevedon Road, Twickenham, Middlesex TW1 2TU e: structuralengineer@pobox.com t: 07850 480118 f: 0870 336146

Saint-Gobain Building Distribution Ltd

Saint-Gobain House, Binley Business Park, Coventry, West Midlands CV3 2TT e: info@saint-gobain.co.uk w: www.saint-gobain.co.uk t: 024 7656 0700 f: 024 7656 0705

Sanders Consulting

Kestrel Court, Harbour Road, Portishead, Bristol, Avon BS20 7AN e: sandcon01@netgates.co.uk w: www.sandcon.co.uk t: 01275 390413 Co7000, Co9100, Co9200, En2000, Ti1200

Sandy Fraser Associates

School of Civil Engineering and Surveying, University of Portsmouth Portland Building, Portland Street, Portsmouth, Hampshire PO1 3AH w: www.port.ac.uk t: 023 9284 2523 f: 0239 2842 9113 Ed4000

School of Creative Arts

Room AB153, Todd Building, Hatfield, Hertfordshire AL10 9AB e: i.hay@herts.ac.uk w: www.herts.ac.uk/courses/architecture t: 01717 285363 Ed4000

School of Energy, Construction and Environment, Coventry University Faculty Of Engineering and Computing, Sir John Laing Building, Priory Street, Coventry CV1 5FB w: www.coventry.ac.uk t: 024 7688 7688 Ed4000

The Old Library Building, L46, London Road, Reading, Berkshire RG1 5AQ w: www.reading.ac.uk/architecture t: 0118 378 2777 Ed4000

www.trada.co.uk

Bridge Street, Thrapston, Kettering, Northamptonshire NN14 4LR e: info@scottsofthrapston.co.uk w: www.scottsofthrapston.co.uk t: 01832 732366 f: 01832 733703 Bu6800, Do2500, Jo4000, Tr4000, Wi2000

Sheldon Bosley Knight Ltd

SDP Consulting Engineers

SHERPA Connection Systems

Suite 3, Salar House, Campfield Road, St. Albans, Hertfordshire AL1 5HT e: mail@sdpce.co.uk w: www.sdpce.co.uk t: 01727 844606 f: 01727 830771 En2000

Sealmaster Ltd

58 Ely Street, Stratford upon Avon, Warwickshire CV37 6LN e: mpayne@sheldonbosleyknight.co.uk w: www.sheldonbosleyknight.co.uk t: 01789 292310 Su1000 Badl 31, Frohnleiten, Styria A-8130, Austria e: office@sherpa-connector.com w: www.sherpa-connector.com t: 00 43 3127 41 983 f: 00 43 3127 20 945 218 Ar2000, Be1000, Fa1000, Ho3000, St2000

Shrewsbury College - Construction

Shrewsbury College, London Road Campus, Shrewsbury, Shropshire SY2 6PR e: stuartr@shrewsbury.ac.uk w: www.scg.ac.uk t: 01743 342455 f: 01743 342534 Ed4000

Selco Builders Warehouse

Scotframe Timber Engineering Ltd

Self-Build-Pro (Chartered Surveyors)

Belmont Business Centre, Brook Lane, Endon, Stoke-on-Trent, Staffordshire ST9 9EZ e: admin@self-build-pro.co.uk w: www.self-build-pro.co.uk t: 01782 502993 Co8800, Co9100, En1000, Ti1200, Ti1500

Unit 4, Albright Road, Widnes, Cheshire WA8 8FY e: enquiries@silvatimber.co.uk w: www.silvatimber.co.uk t: 0151 495 3111 f: 0151 495 2255 Cd1000, De2000, Ro2000, Ti0200, Ti7500

Scotframe Timber Engineering Ltd

Senco

Silvatec Design Ltd

4 Grayshill Road, Westfield, Cumbernauld G68 9HQ e: cumbernauld@scotframe.co.uk w: www.scotframe.co.uk t: 01236 861200 Co9100, En2000, Ti0900, Ti2000, Ti2700

Darach House, Stoneyfield Business Park, Inverness IV2 7PA e: inverness@scotframe.co.uk w: www.scotframe.co.uk t: 01463 717328 Co9100, En2000, Ti0900, Ti2000, Ti2700

Inverurie Business Park, Souterford Avenue, Inverurie, Aberdeenshire AB51 0ZJ e: inverurie@scotframe.co.uk w: www.scotframetimberengineering.co.uk t: 01467 624440 Co9100, En2000, Ti0900, Ti2000, Ti2700

Scotframe Timber Engineering Ltd

Scott White and Hookins LLP

School of Architecture, University of Reading

7 Havelock Terrace, Lutton, Ivybridge, Devon PL21 9SP e: shawn@devondraughtsman.co.uk w: www.devondraughtsman.co.uk t: 01752 837494 Ar2500, Co6500, Fu3000, He1000, Jo5000

Scotframe Timber Engineering Ltd

Sanei Hopkins Architects Ltd

Brewhurst Sawmill, Roundstreet Common, Billingshurst RH14 0AL e: enquiries@shmdirect.com w: www.shmdirect.com t: 01403 752272 Ti1200, Ti2000, Ti7500, Tr4000

Scotts of Thrapston Ltd

Shawn Winn, Draughtsman

1 Valentine Court, Dundee DD2 3QB e: dundee@scotframe.co.uk w: www.scotframe.co.uk t: 01382 561772 Co9100, En2000, Ti0900, Ti2000, Ti2700

Scotframe Timber Engineering Ltd

3a Grey Street, Tayport, Fife DD6 9JF e: sandyfraser@sfa.uk.com t: 01382 907977 f: 01382 553 988 Co4000, Co7000, Co8800, Co9100, En2000

Scandia Hus Manufacturing Ltd

London House, 42 West Street, Carshalton, Surrey SM5 2PR e: info@swh.co.uk w: www.swh.co.uk t: 020 8773 3131

Brewery Road, Pampisford, Cambridge, Cambridgeshire CB22 3HG e: sales@sealmaster.co.uk w: www.sealmaster.co.uk t: 01223 832851 f: 01223 837215 Do4000, Pa4000, Pa8000, Te2000

The National Self Build & Renovation Centre, Lydiard Fields, Great Western Way, Swindon SN5 8UB e: swindon@scotframe.co.uk w: www.scotframetimberengineering.co.uk t: 01793 234503

28 Northampton Park, London N1 2PJ e: amir.s@saneihopkins.co.uk w: www.saneihopkins.co.uk t: 020 7704 1901 f: 020 7704 9048

Scott White and Hookins LLP

Fountain House, 26 St Johns Street, Bedford, Bedfordshire MK42 0AQ e: bed@swh.co.uk w: www.swh.co.uk t: 01234 213111 f: 01234 213333 Co4000, Co7000, Co9200, En2000, En3000

Scott White and Hookins LLP

Harman House, Andover Road, Winchester, Hampshire SO23 7BS e: info@swh.co.uk w: www.swh.co.uk t: 01962 844855 Co4000, Co7000, Co9200, En2000, En3000

Boundary House, 2 Wythall Green Way, Birmingham B47 6LW e: information@selcobw.com w: www.selcobw.com t: 0121 415 7270 f: 0121 415 7294

18 Rossmore Crescent, Templeogue, Dublin D6W, Republic of Ireland e: dooley_emmett@hotmail.com t: 00 353 872 195411

Setsco Services PTE Ltd 18 Teban Gardens Crescent, 608925, Singapore e: wongpc@setsco.com w: www.setsco.com t: 00 65 6566 7777 f: 00 65 6566 7718 Te3500

Setsquare Staging Ltd

3-9 Willow Lane, Mitcham CR4 4NA e: marketing@setsquarestaging.com w: www.setsquarestaging.co.uk t: 020 8687 7400 Fu4000

Sevenoaks Modular Ltd

Unit 2, Milland Road Industrial Estate, Neath, West Glamorgan SA11 1NJ e: wrowlands@somodular.co.uk w: www.somodular.co.uk t: 01639 620240 Co9100, Jo4000, Ti1200, Ti2000, Tr4000

Shadbolt Consulting Ltd

18 Bewick Road, Gateshead, Tyne & Wear NE8 4DP e: grahamh@shadboltgroup.net w: www.shadboltgroup.net t: 0191 478 3330 Co9200

Siero Lam SA

Los Cuetos S/n, Arguelles 33188, Spain e: siero@sierolam.com w: www.sierolam.com t: 00 34 985 742 012 f: 00 34 985 742 350 Fl3500, Gl1000, Pa7200, Sa7000, Ti2000

Silva Timber Products Ltd

14 Haydon Place, Guildford, Surrey GU1 4LL e: design@silvatecdesign.com w: www.silvatecdesign.com t: 01483 769518 f: 01483 770863 Co9100, Co9200, Ti1200

Simonin

22 ZA Des Épinottes, 25500 Montlebon, France e: jjahnke@simonin.com w: www.simonin.com/en t: 00 33 3 81 67 01 26 f: 00 33 3 81 67 22 52 Br2000, Bu8000, Gl1000, Oa1000, St8500

simplydesignsolutions

33 Stewart Drive, Loughborough, Leicestershire LE11 5RU e: info@simplydesignsolutions.co.uk w: www.simplydesignsolutions.co.uk t: 01509 558364 Bu3000, Co9100, Ti1200

simplydesignsolutions

40 St Declan Close, Nuneaton CV10 8LP e: info@simplydesignsolutions.co.uk w: www.simplydesignsolutions.co.uk t: 024 7632 6365 Bu3000, Co9100, Ti1200

Simpson (York) Ltd

Joiners Shop, Common Road, Dunnington, York, North Yorkshire YO19 5PD e: enquiries@simpsonyork.co.uk w: www.simpsonyork.co.uk t: 01904 481604 f: 01904 751251 Bu3000

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TRADA Members

Simpson (York) Ltd

PO Box 289, 10 Hassacarr Close, Chessingham Park, Dunnington, York YO19 5YL e: enquiries@simpsonyork.co.uk w: www.simpsonyork.co.uk t: 01904 562400 f: 01904 562462 Bu3000

Simpson Associates Consulting Engineers LLP 8 Friday Street, Henley-on-Thames, Oxfordshire RG9 1AH e: mail@simpsoneng.com w: www.simpsoneng.com t: 01491 576221 f: 01491 410129 En2000

Simpson Strong-Tie

Winchester Road, Cardinal Point, Tamworth, Staffordshire B78 3HG e: pclayton@strongtie.eu w: www.strongtie.co.uk t: 01827 255600 f: 01827 255616 Fa1000, Gl2000, St8000, Ti2700

SIPS Industries Ltd

Crossway, Donibristle Industrial Estate, Dalgety Bay, Fife KY11 9JE e: info@sipsindustries.com w: www.sipsindustries.com t: 01383 823995

Sir Robert McAlpine Ltd

South Eastern Carpentry Ltd

Sterry, Nigel F

Slowikowski Blackshaw

SP Architectural

Steve Coleman (Timber Erectors) Ltd

853 - 855 London Road, Westcliff-on-Sea, Essex SS9 1BU e: michaela@skarchitects.co.uk w: www.skarchitects.co.uk t: 01702 509250 Ar2000 The Maltings, East Tyndall Street, Cardiff Bay, Cardiff, South Glamorgan CF24 5EA e: slowikowski@btconnect.com w: www.slowikowskiblackshaw.co.uk t: 029 2045 1331

68 Wilson Avenue, Rochester, Kent ME1 2RL e: stephenpokora@msn.com t: 07734 861399

Space4 Ltd

Tameside Drive, Castle Bromwich, Birmingham B35 7AG e: sales@space4.co.uk w: www.space4.co.uk t: 0121 748 8383 f: 0121 776 7369 Bu6800, Bu7000, St8000, St8500, Ti2000

Gauntlets, Battenhurst Road, Stonegate, Wadhurst, East Sussex TN5 7DU e: stephen.evans@evans-structures.co.uk w: www.evans-structures.co.uk t: 01435 884800 48 Spinney Hill Drive, Loughborough, Leicestershire LE11 3LD e: nigelsterry@btconnect.com t: 01509 264265 f: 01509 264265 Ar2000 11 Christie Close, Broxbourne, Hertfordshire EN10 7RB e: office@timbererectors.co.uk w: www.timbererectors.co.uk t: 01992 443920 f: 01992 443920 Bu3000, Ca0500, Gl2000, Ti1500, Ti2500

Steve Eastland Design Ltd

Hope House, Kerswell, Devon EX15 1RR e: steve@steveeastlanddesign.com t: 01884 266437 Ar2000

Steve Gilman Design Ltd

SMS Timber Frame

St.Teath Homes Ltd

Steve Haskey Design Ltd

Lasyard House Business Centre, Underhill Street, Bridgnorth, Shropshire WV16 4BB e: info@spencerjonesdesign.co.uk w: www.spencerjonesdesign.co.uk t: 07794 937038 Co9100, Co9200, Ti1200 Unit 11, Palmers Way, Trenant Industrial Estate, Wadebridge, Cornwall PL27 6HB e: stteathhomes@aol.com t: 01208 895609

Stafford Bridge Doors Ltd

Solid Studio, 12 Albion Street, Chipping Norton, Oxfordshire OX7 5BJ e: info@solid-structures.com w: www.solid-structures.com t: 01608 690858 Co9100, Co9200, En2000, Ti1200

Bedford Road, Pavenham, Bedford MK43 7PS e: sales@staffordbridge.com w: www.staffordbridge.com t: 01234 826316 f: 01234 826319 Do2500, Do4500, Do5000, Lo2000

SOLUTION Consulting Engineers Ltd

Stanmore Contractors Ltd

Hawthorne House, Cowards Lane, Codicote, Hertfordshire SG4 8UN e: steveb@solutionce.co.uk t: 01438 820110 En2000

Timber 2020 Industry Yearbook

Heritage House, Yalding Hill, Yalding, Kent ME18 6AL e: info@secarpentry.co.uk w: www.secarpentry.co.uk t: 01622 813421 f: 01622 815297

Stephen Evans Associates LLP

Spencer Jones Design Ltd

Solid Structures (UK) Ltd

266 |

The Studio, 198 Blackstock Road, London N5 1EN e: studio@souparchitects.com w: www.souparchitects.com t: 020 7354 1729 f: 020 7354 1730 Ar2000

Suite 8, Branksome Park House, Branksome Business Park, Bourne Valley Rd, Poole, Dorset BH12 1ED e: nigel@smithfoster.com w: www.smithfoster.com t: 01202 540888 f: 01202 540044 En2000 Unit 3, Near Bank, Shelley, Huddersfield HD8 8LT e: info@smstimberframe.co.uk w: www.smstimberframe.co.uk t: 01484 609900 Ti1200

Unit 1, Hammond Road, Knowsley Industrial Park, Merseyside L33 7UL e: info@thesipcompany.com w: www.thesipcompany.com t: 0151 424 5346 f: 0844 335 3998

Fanshaw House, Fanshaw Street, London N1 6HX e: sdpsa@davysmitharchitects.co.uk w: www.davysmitharchitects.co.uk t: 020 7739 2020 f: 020 7739 2021 Ar2000

SKArchitects Ltd

Smith Foster Ltd

SIPCO Ltd

Stephen Davy Peter Smith Architects Ltd

Soup Architects

50 St Andrews Street, Cambridge CB2 3AH e: contact@smithandwallwork.com w: www.smithandwallwork.com t: 01223 750249 En2000

93 Great Suffolk Street, London SE1 0BX e: dglenister@sinclairjohnston.co.uk w: www.sinclairjohnston.co.uk t: 020 7593 1900 f: 020 7593 1910 Co9100, En2000

The Boathouse Design Studio, Ferry Lane, Teddington, Middlesex TW11 9NN e: sophie@sophiebates.com w: www.sophiebates.com t: 07725 501683 Ar2000

Technical Information Division, Eaton Court, Maylands Avenue, Hemel Hempstead, Hertfordshire HP2 7TR e: r.ffrench@srm.com w: www.srm.com t: 01442 233444 f: 01442 230024 Bu3000, En2000

Smith and Wallwork Ltd

Sinclair Johnston & Partners Ltd

Sophie Bates Architects

Somerset Carpenters Ltd

Unit 3b, Bath Bridge Business Park, Bath Road, Bridgwater, Somerset TA6 4SZ e: info@somersetcarpenters.co.uk w: www.somersetcarpenters.co.uk t: 01278 425710 f: 01278 446667

Somerville (NI) Ltd

7 Tower Lane, Hillsborough Road, Moneyreagh, Down BT23 6AY e: garth@somervilles.co.uk w: www.somervilles.co.uk t: 02890 448429 f: 02890 448842 Jo4000

Stanmore House, Gyproc Business Park, Church Manorway, Erith, Kent DA8 1DE e: mail@stanmoreltd.co.uk w: www.stanmoreltd.co.uk t: 01322 446446

Star Design Solutions Ltd Suite 309, Wellington House, 90-92 Butt Road, Colchester, Essex CO3 3BA e: jude@starda.co.uk w: www.starda.co.uk t: 020 8432 0807 En2000

Steico UK Ltd

Unit 3, Eden Brae Business Park, Caddington, Bedfordshire LU1 4FF e: info.uk@steico.com w: www.steico.com t: 01727 515120 f: 01582 391355 Fi2000, Gl1000, Lv1000, Pa8800, St9000

South Grange, 28 High Street, Bassingham, Lincolnshire LN5 9EY e: mail@stevegilmandesign.co.uk w: www.stevegilmandesign.co.uk t: 01522 788000 f: 01522 788000 Ar2500, En2000 20 St John Street, Bromsgrove, Worcestershire B61 8QY e: steve@haskey.co.uk t: 01527 832587

Steven Fraser Chartered Architect

25 Glencairn Crescent, Edinburgh EH12 5BT e: info@stevenfraser.co.uk w: www.stevenfraser.co.uk t: 07889 804192 Ar2000

Steven Holloway Ltd

6 Bank Square, High Street, Bidford on Avon, Alcester, Warwickshire B50 4NL t: 01789 772816 f: 01789 490510

Stewart Associates

The Studio, 9 Waterside Street, Largs, Ayrshire KA30 9LN e: info@stewart-associates.com w: www.stewart-associates.com t: 01475 670033 f: 01475 673103

Stewart Morris Partnership Ltd

Stonecroft House, Ervington Court, Leicester, Leicestershire LE19 1WL e: engineers@smpconsulting.co.uk w: www.stewart-morris-partnership.co.uk t: 0116 254 6922

www.trada.co.uk

TRADA Members

Stirling Maynard

Stirling House, Rightwell, Bretton, Peterborough, Cambridgeshire PE3 8DJ e: huw.west@stirlingmaynard.com w: www.stirlingmaynard.com t: 01733 262319 f: 01733 331527 Co8800, Co9100, En2000, Ti1200

Stora Enso UK Ltd

1 Kingfisher House, New Mill Road, Orpington, Kent BR5 3QG e: woodproducts.uk@storaenso.com w: buildingandliving.storaenso.com t: 01689 883220 f: 01689 883221 Ar2000, Cl1000, En2000, Jo3000, Sa6500

Stourhead (Western) Estate

Estate Office, Gasper Mill, Stourton, Warminster, Wiltshire BA12 6PU e: nick@stourhead.com w: www.stourhead.com t: 01747 840643 f: 01747 841107 Cd1000, De2000, Ha7000, So6000, Ti4000

Straight Up Timber Frame Ltd

Ribblesdale House, 14 Ribblesdale House, Preston, Lancashire PR1 3NA e: info@straightuptimber.co.uk w: www.straightuptimber.co.uk t: 01772 824644 Ar2500, Co4000, Co9100, Co9200, Ti1200

Strategic Team Group

Strategic Business Centre, Blue Ridge Park, Thunderhead Ridge, Glasshoughton, Yorkshire WF10 4UA e: charlestweed@strategicteamgroup.com w: www.strategicteamgroup.com t: 01977 555550 f: 01977 555509

Street Design Ltd

Unit 47, Hayhill Industrial Estate, Barrow Upon Soar, Loughborough, Leicestershire LE12 8LD e: sdl@street-design.com w: www.street-design.com t: 01509 815335 f: 01509 815332 Ga3000, Pg1000, St5000

STREIF

1 Josef Streif St, Weinsheim 54595, Germany e: werner.peintinger@streif.de w: www.streif.de t: 00 49 6551 12455 f: 00 49 6551 12220 Bu8000, Ho3000, Ti2000

STREIF

4 Metro House, Northgate, Chichester, West Sussex PO19 1BE e: bill.treves@streif.co.uk w: www.streif.co.uk t: 01243 790075 Bu8000, Ho3000, Ti2000

Stride Treglown Ltd

Promenade House, The Promenade, Clifton Down, Bristol BS8 3NE e: robertdelius@stridetreglown.com w: www.stridetreglown.co.uk t: 0117 974 3271 f: 0117 974 5207 Ar2000, Co8800, En3000, La9000, Su1000

Stroud Associates

Suite F, Harkstead Hall Estate Barns, Lings Lane, Harkstead, Ipswich, Suffolk IP9 1DB e: phil@stroud-associates.co.uk w: www.stroud-associates.co.uk t: 01473 858960 f: 08707 061135

www.trada.co.uk

Structa LLP

Struktura

Struct-SURE & Building Design

Stuart Page Architect

High Trees, Hillfield Road, Hemel Hempstead, Hertfordshire HP2 4AA e: enquiries@structa.co.uk w: www.structa.co.uk t: 01442 419850 Co9100, En2000 282 Skipton Road, Harrogate, North Yorkshire HG1 3HE e: structural.design@gmx.co.uk w: www.structural-building-design.co.uk t: 01423 569374 Co8800, Co9100, Co9200, En2000

Structural and Civil Design

St Peter's House, 16 Croham Road, South Croydon, Surrey CR2 7BA e: bill.ainscow@s-and-cd.co.uk w: www.s-and-cd.co.uk t: 020 8668 0884 f: 020 8668 0887

Queens Chambers, 5 John Dalton Street, Manchester M2 6ET e: khill@strukturaes.com w: www.strukturaes.com t: 07471 036144 En2000 Forge House, The Green, Langton Green, Tunbridge Wells, Kent TN3 0JB e: stuart@stuartpage.co.uk w: www.stuartpage.co.uk t: 01892 862548 f: 01892 863919 Ar2000, He1000

Studio RHE Ltd

Sydenhams Timber Engineering 45/47 Ashley Road, Boscombe, Bournemouth, Dorset BH1 4LG e: dean.orchard@sydenhams.co.uk w: www.sydenhamstimberframe.co.uk t: 01202 303585 f: 01202 302634 Ti2000

Sydenhams Timber Engineering Forest Road Industrial Estate, Newport, Isle of Wight PO30 5QW e: dean.orchard@sydenhams.co.uk w: www.sydenhamstimberframe.co.uk t: 01983 535187 f: 01983 532321 Ti2000, Tr4000

4 Green Mews, Bevenden Street, London N1 6AS e: rhe@rhe.uk.com w: www.studiorhe.com t: 020 7253 5358 Ar2000

T

1A Oaktree Business Park, Cadley Hill Road, Swadlincote, Derbyshire DE11 9DJ e: consult@sda-burton.co.uk w: www.sda-burton.co.uk t: 01283 551111 f: 01283 551119 Co4000, Co9100, En2000, He1000, Ti1200

studioEAST Chartered Architects

PO Box 112, Heywood, Lancashire OL10 9AA e: tfs@btinternet.com t: 01706 659551 f: 01706 645729 Ar2500, Bu3000, Co9100, Ho3000, Ti1200

Structural Design Services

48 Belle Vue Road, Bournemouth, Dorset BH6 3DT e: jpbarratt@gmail.com t: 01202 431913 f: 01202 431913 En2000

Whigstreet, Kirkbuddo, Forfar, Angus DD8 2NN e: info@sturrocksjoinery.com w: www.sturrocksjoinery.com t: 01307 820209 f: 01307 820289 Jo4000

Structural Engineering Services Ltd

Suetake Studio 2

Structural Design Associates Ltd

The Coast Guard Station, Queens Promenade, Ramsey, Isle Of Man IM8 1ES e: info@ses.co.im t: 01624 819300

Structural Engineers Cambridge Ltd The White Horse, London Road, Pampisford, Cambridge, Cambridgeshire CB22 3EF e: engineering@secambridge.co.uk w: www.structuralengineerscambridge.co.uk t: 01223 833555

Structural Solutions

Dairy Studios, 102 Lincoln Street, Bristol, Avon BS5 0BJ e: admin@structuralsolutions.co.uk w: www.structuralsolutions.co.uk t: 0117 924 5014 f: 0117 924 5207 Ce2000, Co9100, Co9200, En2000

Structural Solutions

Lilac Cottage, Straight Mile, Poulton, Chester CH4 9EQ e: robert.rowlands@structural.solutions w: www.structural.solutions t: 01244 526020 f: 01244 241258

Structural Timber Design Services Ltd 21 Langley Road, Trowbridge, Wiltshire BA14 0LL e: admin@studs.org.uk w: www.studs.org.uk t: 01225 342837 Cj1000, Co4000, Co9200, Ti1200

StructureMode Ltd

8a Peacock Yard, Iliffe Street, London SE17 3LH e: mail@structuremode.com w: www.structuremode.com t: 020 7701 5714 Co4000, Co9100, En2000, Ti1200

King James VI Business Centre, Friarton Rd, Perth, Perthshire PH2 8DY e: hello@studio-east.co.uk w: www.studio-east.co.uk t: 01738 472090 Ar2000

Sturrocks Joinery

1 Grays Lodge, Chignal Smealey, Chelmsford, Essex CM1 4SX e: junko@suetake.co.uk w: www.suetake.co.uk t: 07775 890280 Ar2000

Summerfield, F

216 Heaton Moor Road, Heaton Moor, Stockport, Cheshire SK4 4DU e: fs@torplan.co.uk w: www.torplan.co.uk/engineer t: 0161 443 1881 f: 0161 431 0786 En2000

Super Structures Associates Ltd

G10 Electroline House, 15 Lion Road, Twickenham, Middlesex TW1 4JH e: derek.mason@ssaceltd.co.uk w: www.superstructuresassociates.co.uk t: 020 8102 7974 En2000

Sustainable Construction Solutions Ltd

T F S Design Ltd

T J Crump Oakwrights Ltd

The Lakes, Swainshill, Hereford, Herefordshire HR4 7PU e: enquiries@oakwrights.co.uk w: www.oakwrights.co.uk t: 01432 353353 f: 01432 357733 Bu5000, Ho3000, Oa1000, Ti2000, Ti2500

T Manners & Sons Ltd

Peel House, Dovecot Hill, South Church Enterprise Park, Bishop Auckland, County Durham DL14 6XW e: steve.hodges@tmanners.co.uk w: www.tmanners.co.uk t: 01388 774030 Do2500, Fu4000, Jo4000, Sh4000, Wi2000

T W P Consulting Structural & Civil Engineers

Bradninch Hall, Castle Street, Exeter, Devon EX4 3PL e: admin@twpeng.com w: www.twpeng.com t: 01392 276046 f: 01392 430853 Co9100, Co9200, En2000, Ti1200

T&G Ltd

Sommerville House, Phillips Street, St Helier, Jersey JE2 4SW, Channel Islands e: ian@tandglimited.com w: www.tandglimited.com t: 01534 867070 f: 01534 867060 En2000

6 Heron Close, Uxbridge, Middlesex UB8 1BJ e: info@susconsol.co.uk w: www.susconsol.co.uk t: 07768 707669 Ce1000, Co4000, Co5000, Co8800, En5000

TALL Engineers Ltd

Swift Timber Homes Ltd

Tape Design

Unit 2, Catkin Way, Greenfields Industrial Estate, Bishop Auckland, County Durham DL14 9TF e: enquiries@swifttimberhomes.com w: www.swifttimberhomes.com t: 01388 835 222 Bu6800, Ti2000

143 Crownstone Road, London SW2 1NB e: mail@TALLengineers.com w: www.TALLengineers.com t: 020 7733 6837 Co4000, Co9100, Co9200, En2000, Ti1200 18A King Street, Ulverston, Cumbria LA12 7DZ e: rob@tapedesign.co.uk w: www.tapedesign.co.uk t: 07793 763265

Taylor & Boyd

107 Malone Avenue,, Belfast, Co Antrim BT9 6EQ e: postbox@taylor-boyd.co.uk w: www.taylor-boyd.co.uk t: 028 9066 7951

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TRADA Members

Taylor Made Joinery Interiors Ltd

Manor Wood, Ipswich Road, Bildeston, Ipswich, Suffolk IP7 7BH e: info@tmjinteriors.com w: tmjinteriors.com t: 01449 740518 f: 01449 741386 Bu5000, Do5000, Jo4000, Jo5000, Ve3000

Technical & Graphic Design Services Ltd Bryngwenllan, Henllan, Llandysul, Ceredigion SA44 5TY e: enquiries@tgds.org.uk w: www.tgds.org.uk t: 01962 658662 Ar2500, Co9200, Ti1200

TECMAN Industry SAL

Nahr El-Mott, Al Wadi Al-Sinai, Jdeidet El-Meten 90 1980, Lebanon e: tecman@tecmanindustry.com w: www.tecmanindustry.com t: 00 961 1 87 91 11 f: 00 961 1 87 92 22 Bu3000

Tek Fire Door Services

Unit 10a, Beehive Business Centre, Beehive Lane, Great Baddow, Chelmsford, Essex CM2 9TE e: info@tekfiredoorservices.co.uk w: www.tekfiredoorservices.co.uk t: 01245 250657 Ca0500, Co5250, Do1000, Do4000, Do4500

Teknos (UK) Ltd

Teknos Ireland, 54 Ballymoughan Rd, Magherafelt BT45 6HN e: sales.ireland@teknos.co.uk w: www.teknos.co.uk t: 02879 301472

Teknos GBI

7 Longlands Rd, Bicester, Oxfordshire OX26 5AH e: sales@teknos.co.uk w: www.teknos.co.uk t: 01869 208005 Co1500, Fi6000, La1000, Pa3000, Va1000

Terence Fidler Partnership Ltd 65 High Street, Kings Langley, Hertfordshire WD4 9HU e: info@tfpengineers.co.uk t: 01923 291554 f: 01923 291553 Co8800, En2000

The Architects Design Ltd

Unit 20D, The Wren Centre, Westbourne Road, Emsworth, Hampshire PO10 7SU e: studio@thearchitectsdesign.co.uk w: www.thearchitectsdesign.co.uk t: 01243 624622 Ar2000

The Barn Partnership Ltd

Brooks Farm, Bath Road, Beenham, Reading, Berkshire RG7 5JB e: info@thebarnpartnership.co.uk w: www.thebarnpartnership.co.uk t: 0118 930 6633 f: 0118 971 3446

The Barn Partnership Professional Services Ltd

Woodclose, Carbinswood Lane, Woolhampton, Reading, Berkshire RG7 5TS t: 0118 971 4400

The Budgen Partnership

54 Lisson Street, London NW1 5DF e: mail@budgenpartnership.com w: www.budgenpartnership.com t: 020 7224 8887

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Timber 2020 Industry Yearbook

The Cartlodge Company

40 Halstead Road, Earls Colne, Colchester, Essex CO6 2NL e: info@thecartlodgecompany.co.uk w: www.thecartlodgecompany.co.uk t: 01787 224630 Ti2500

The E Studio

8 The Wedge, Tenby Street North, Birmingham, West Midlands B1 3EN e: info@the-estudion.com w: www.the-estudio.com t: 07805 419196 Ar2000, Co8800

The Keen Partnership

The Courtyard, Edinburgh Road, Reading, Berkshire RG30 2UA e: chriskeen@keenpartnership.co.uk t: 01189 510855

The McFarlane Partnership

22A Lordship Park, London N16 5UD e: info@mcf-architects.co.uk w: www.mcf-architects.co.uk t: 020 8800 1479 f: 020 8809 0628

The Morton Partnership Ltd

Old Timber Yard House, 55 The Timber Yard, Drysdale Street, London N1 6ND e: london@themortonpartnership.co.uk w: www.themortonpartnership.co.uk t: 020 7324 7270 f: 020 7729 1196 Co9100

The Morton Partnership Ltd

Unit B1, Norwich Road, Halesworth, Suffolk IP19 8HX e: halesworth@themortonpartnership.co.uk w: www.themortonpartnership.co.uk t: 01986 875651 f: 01986 875085 Co9200, Su1000

The Stable Company (Goodricks) Ltd

Outgang Lane, Osbaldwick, York YO19 5UP e: enquire@thestablecompany.com w: www.thestablecompany.com t: 01904 430630 Bu4000, Bu6800, Bu8000, Ti2000

The Structural Engineer Ltd

Office 5, The Farmhouse, Yew Tree Studios, Ashford, Kent TN25 6DH e: claire@thestructuralengineerltd.co.uk t: 07909 930336

Themos Demetriou, Civil Engineer PO Box 22627, Nicosia 1523, Cyprus e: t.demetriou@cytanet.com.cy t: 00 357 22 760544 f: 00 357 22 757554

Thomas Armstrong (Timber) Ltd

Workington Road, Flimby, Maryport, Cumbria CA15 8RY e: timber@thomasarmstrong.co.uk w: www.thomasarmstrong.co.uk t: 01900 68226 f: 01900 870800 Gl2000, Pa1000, Pa5700, Ti2000, Tr4000

Thomas Robinson Architects

The Red House, Croftamie, Glasgow G63 0EU e: tom@thomasrobinsonarchitects.co.uk w: www.thomasrobinsonarchitects.co.uk t: 01360 661144

Thorogood Timber Ltd

Colchester Road, Ardleigh, Colchester, Essex CO7 7PQ e: info@thorogood.co.uk w: www.thorogood.co.uk t: 01206 233100 f: 01206 233115 Cd1000, Fl4000, Mo4500, Ti7600, Ti7700

Timber Marketing Services T/A Wood Concepts

23 Town Centre Mall, Swords, Co Dublin, Republic of Ireland e: tms@tms.ie t: 00 353 1 8408 388 f: 00 353 1 8408 377 De2000, Do2000, Fl3000, Pl1000, Ti0800

Tim Kelly Consulting Engineers

Timber PAK

Timber Cladding Consultants

Timber Technology Services

Newtown, Hollywood, County Wicklow, Republic of Ireland e: tim@tkce.ie w: www.tkce.ie t: 00 353 86 825 3049 Ce2000, Co4000, Co9100, Co9200, En2000 24 Nettlehome, Hatfield, Doncaster, South Yorkshire DN7 6QZ e: chris@timbercladding.uk.com w: www.timbercladding.uk.com t: 01302 351635 f: 05600 756545 Co9200

Timber Construction & Renovation Ltd 24 Welsford Avenue, Bristol BS16 1BW e: a.gregory_services@live.co.uk t: 07757 211374 Bu3000

Unit 4-5 Redlake Trading Estate, Ivybridge, Devon PL21 0EZ e: andy@timber-pak.co.uk w: www.timber-pak.co.uk t: 01752 710289 Bu3000 33 Ellesmere Avenue, North Circular Road, Dublin 7, Republic of Ireland e: bobdavis.dublin@hotmail.com t: 00 353 87 688 6866

Timber Trade Federation

The Building Centre, 26 Store Street, London WC1E 7BT e: ttf@ttf.co.uk w: www.ttf.co.uk t: 020 3205 0067 f: 020 7291 5379 As1000

Timber Decking & Cladding Association

Timberdeal Ltd

Timber Design Services

Timberframe Engineering Services Ltd

5 Flemming Court, Castleford, West Yorkshire WF10 5HW e: info@tda.org.uk w: www.tda.org.uk t: 01977 558147 As1000, Co9200

9 Hamilton Street, Dublin 8, Republic of Ireland e: robinsonbill@eircom.net t: 00 353 1 411 3522 Co9100, Co9200, En2000, Ti1500

Timber Focus

3000 Aviator Way, Manchester Business Park, Manchester, Greater Manchester M22 5TG e: info@timberfocus.com w: timberfocus.com t: 0800 368 9905 Cd1000, De2000, Fl1000, Fl6300, Ti0800

Timber Frame Design & Build

St Helena Farm, St Helena Lane, Plumpton Green, East Sussex BN7 3DH e: info@timberdeal.co.uk w: www.timberdeal.co.uk t: 01273 890607 Ha7000, Ki3000, Pa7700, St2000, Ti1000

Orchard Cottage, Station Road, Chipping Campden GL55 6HY e: david@tfes.biz t: 01386 840769

Timbersource Ltd

Quarry Way, Waterlip, Somerset BA4 4RN e: sales@timbersource.co.uk w: www.timbersource.co.uk t: 01373 469905 f: 01373 469902 Ti0200, Ti0500, Ti0800, Ti7600, Ti7700

Timbertech Homes Ltd

Holmbush Woods, Stoke Road, Kelly Bray, Callington, Cornwall PL17 8RA e: hello@timberframe-dab.co.uk w: www.timberframe-dab.co.uk t: 01579 388800

Ballinakill Yard, Enfield, Co. Meath A83 XN82, Republic of Ireland e: fergal@timbertechhomes.ie w: www.timbertechhomes.ie t: 00 353 46 954 2854 Ti1500, Ti2000

Timber Frame It (SE) Ltd

Timbertek Ltd

3 Napier House, Elva Way, Bexhill-on-Sea, East Sussex TN39 5BF e: info@timberframeit.co.uk w: www.timberframeit.co.uk t: 01424 213400 f: 01424 213400 Ti2000

Timber Frame Management Ltd Unit 10 Denney Road, Hardwick Industrial Estate, King's Lynn, Norfolk PE30 4HG e: david@collegefarm.eu w: www.timberframemanagement.com t: 01553 692771 f: 01553 661411 Bu6800, St8000, Ti2000

Timber Kit Solutions Ltd

Long Lane, Telford, Shropshire TF6 6HA e: info@timberkitsolutions.co.uk w: www.timberkitsolutions.co.uk t: 01952 770990 Ti2000, Tr4000

Unit 1G, Back Lane Industrial Estate, Back Lane, Chulmleigh, Devon EX18 7DQ e: mail@timbertek.co.uk w: www.timbertek.co.uk t: 01769 581143 Bu3000, Cj1000, Ho3000, Ti1500

Timberworks Europe

12 Guildhall Street, Bury St Edmunds, Suffolk IP33 1PR e: info@timberworkseurope.com w: www.timberworkseurope.com t: 01284 725794 Bu6000, Ho3000, Ho4000, Pa7000, Ti2000

Timbmet

Timbmet - Glasgow, 235 Bogmoor Road, Shieldhall, Glasgow G51 4SH e: glwsales@timbmet.com w: www.timbmet.com t: 0141 440 6600 f: 0141 445 5736 Fl4000, Ma2500, Mo4500, Pa7500, Ti0200

www.trada.co.uk

TRADA Members

Timbmet

Timbmet - Poole, Unit 4, Lion Works Industrial Estate, 543 Wallisdown Road, Wallisdown, Poole, Dorset BH12 5AD e: poole@timbmet.com w: www.timberdepots.com t: 01202 531926 f: 01202 537918 Fl4000, Ma2500, Mo4500, Pa7500, Ti0200

Timbmet

Timbmet - Stonehouse, 14 Gloucester Road, Stonehouse, Gloucestershire GL10 2PB e: stonehouse@timbmet.com w: www.timberdepots.com t: 01453 826886 f: 01453 828029 Fl4000, Ma2500, Mo4500, Pa7500, Ti0200

Timbmet

White Horse Park, Ware Road, Stanford in the Vale, Oxfordshire SN7 8NY e: oxfsales@timbmet.com w: www.timbmet.com t: 01865 860350 f: 01865 864367 Fl4000, Ma2500, Mo4500, Pa7500, Ti0200

Tingdene Homes Ltd

45-49 Bradfield Road, Finedon Road Industrial Estate, Wellingborough, Northamptonshire NN8 4HB e: ian.wilkins@tingdene.co.uk w: www.tingdene.co.uk t: 01933 230101 Bu3000

TMA Chartered Surveyors

The Gatehouse, 116-118 Rainsford Road, Chelmsford CM1 2QL e: tim@tmasurveys.co.uk w: www.tmasurveys.co.uk t: 01245 210060

TMJ Contractors Ltd

Good Hope Mill, 107 Cavendish Street, Ashton under Lyne, Greater Manchester OL6 7SW e: hello@tmjcontractors.co.uk w: www.tmjcontractors.co.uk t: 0845 634 0096 Cj1000

Toni Moses Design Ltd

47 High Street, Hinxton, Saffron Walden, Essex CB10 1QY e: toni@tonimosesdesign.com t: 01799 530064 Ar2500

Tooley & Foster Partnership, The Warwick House, 116 Palmerston Road, Buckhurst Hill, Essex IG9 5LQ e: keveritt@tooleyfoster.com w: www.tooleyfoster.com t: 020 8504 9711 f: 020 8506 1779 Ar2000

Torlock Ltd

Unit E4 Palmers Brook, Industrial Estate, Park Road, Wootton, Isle of Wight PO33 4NS e: info@torlockltd.com w: www.torlockltd.com t: 01983 882895 Bu3000, Cj1000, Co9300

Tottenham & Bennett

5 Guthrie Gardens, Dover CT17 0PW e: mail@tot-ben.co.uk w: www.tot-ben.co.uk t: 07954 265135 Co4000, Co9100, En2000

www.trada.co.uk

Tower Doors Ltd

107 Coltness Lane, Queenslie Industrial Estate, Glasgow, Lanarkshire G33 4DR e: sales@towerdoors.co.uk w: www.towerdoors.co.uk t: 0141 774 6162 f: 0141 774 6163 Do2500, Do4500, Do5000

Townsend Timber

Townsend Farm, Pulham, Dorchester, Dorset DT2 7DX e: sales@townsendtimber.co.uk w: www.townsendtimber.co.uk t: 01300 345220 f: 01300 345814 Bu6800, Fe3000, Jo4000, Oa1000, Ti2000

Townshend Landscape Architects Ltd

Northumberland House, 303-306 High Holborn, London WC1V 7JZ e: tla@townshendla.com w: www.townshendla.com t: 020 7729 9333 f: 020 7729 33008 Ar2000, La9000

TRAC Structural Ltd

23 Belvoir Road, St Andrews, Bristol BS6 5DQ e: info@trac-structural.co.uk w: www.trac-structural.co.uk t: 0117 924 0224 f: 0117 924 8574

Traeinformation

Lyngby KirkestrĂŚde 14, Kongens Lyngby 2800, Denmark e: traeinfo@traeinfo.dk w: www.traeinfo.dk t: 00 45 40 98 12 22

Trevor Derby Associates

2 Colchester Road, White Colne, Colchester, Essex CO6 2PN e: info@tda-structures.co.uk w: www.tda-structures.co.uk t: 01787 224700 Co4000, Co7000, Co8800, Co9100, En2000

Trewin Design Architects

1 Stanhope Square, Holsworthy, Devon EX22 6DR e: james@trewin-design.co.uk w: www.trewin-design.co.uk t: 01409 253013 Ar2000, Ar2500, Co4000, Su1000

Trimble Solutions UK

Trimble House, Gelderd Road, Morley, Leeds LS27 7JP w: www.tekla.com/uk t: 0113 887 9790 f: 08455 196818 So1000

Trivselhus UK

York House, Sheet Street, Windsor, Berkshire SL4 1DD e: toby.allen@trivselhus.co.uk w: www.trivselhus.co.uk t: 0191 490 6980 Bu3000

TRP Consulting Ltd

Basil Chambers, 65 High Street, Manchester, Lancashire M4 1FS e: manchester@trpconsult.com w: www.trpconsult.com t: 0161 839 9113 f: 0161 839 9114 Co5000, Co9200, En2000

True Consulting Engineers

Ringslade House, Broadway Road, Kingsteignton, Newton Abbot, Devon TQ12 3EH e: admin@trueconsultant.co.uk w: www.trueconsultant.co.uk t: 01626 572672 En2000

Truro Timber Frames

Unit 2b, Toldish Lane, St Columb, Cornwall TR9 6HT e: info@trurotimberframe.com w: www.trurotimberframe.com t: 01872 519494 Ti1200, Ti1500, Ti2000

Trussed Rafter Association Building Centre, 26 Store Street, London WC1E 7BT e: info@tra.org.uk w: www.tra.org.uk t: 020 3205 0032 f: 020 7291 5379 As1000, Tr4000

Turner Timber Frames Ltd

5C Wyke Street, Hedon Road, Kingston upon Hull, East Yorkshire HU9 1PA e: hello@turnertimber.co.uk w: www.turnertimberframes.co.uk t: 01482 218945 Oa1000, Ti1500, Ti2000, Ti2500, Tr4000

Ty Afal

Cefnau, Llangadfan, Welshpool, Powys SY22 OQA e: jamie@tyafal.co.uk w: www.tyafal.co.uk t: 07969 512315 Ar2000

TZG Partnership Ltd

Orchard House, 114-118 Cherry Orchard Rd, Croydon CR0 6BA e: admin@tzgpartnership.com w: www.tzgpartnership.com t: 020 8681 2137 f: 020 8667 1328 En2000

U

UK & European Construction Ltd t/a Ranns Construction Unit 5, 39 Willow Lane, Mitcham, Surrey CR4 4NA e: kathy@rannsconstruction.co.uk w: www.rannsconstruction.co.uk t: 07850 781043 Bu3000

University of Birmingham Department of Civil Engineering Edgbaston, Birmingham B15 2TT e: g.s.ghataora@bham.ac.uk t: 0121 414 5047 Ed4000

University Of Cambridge

Department Of Engineering, Trumpington Street, Cambridge, Cambridgeshire CB2 1PZ e: cued-library@eng.cam.ac.uk w: www.eng.cam.ac.uk t: 01223 332626 Ed4000

University of Manchester

Joule Library, Sackville Street, PO Box 88, Manchester, Greater Manchester M60 1QD e: david.hirst@manchester.ac.uk t: 0161 236 3311 f: 0161 228 7040 Ed4000, Re4000

University of Manchester

The John Ryland University Library, Oxford Road, Manchester M13 9PP t: 0161 275 3748 f: 0161 275 3759 Ed4000

University of Westminster

School of Architecture + Cities, 35 Marylebone Road, London NW1 5LS e: dcdicollegesupport@westminster.ac.uk w: www.westminster.ac.uk t: 020 7911 5000 Ed4000

Urban Marque

2, Discovery Business Park, Broadway, Yaxley, Peterborough PE7 3GX e: info@urbanmarque.com w: www.urbanmarque.com t: 03300 583 353 Bu6000, Bu6500, Bu6800, Ho3000, Ti2000

V

V L J English Oakcroft

115 Upper Craigour, Edinburgh EH17 7SE e: englishoakcroft@aol.com t: 07766 644437 Bu3000

Vale Garden Houses Ltd

Belton Park, Londonthorpe Road, Grantham, Lincolnshire NG31 9SJ e: enquiries@valegardenhouses.com w: www.valegardenhouses.com t: 01476 564433 f: 01476 578555 Bu5000, Jo5000

Varndell Engineering Ltd

2 The Granary, Bignell Park Barns, Chesterton, Bicester, Oxfordshire OX26 1TD e: info@varndell.engineer w: www.varndell.engineer t: 01869 226020 En2000

Vascroft Contractors Ltd

Vascroft Estate, 861 Coronation Road, Park Royal, London NW10 7PT e: info@vascroft.com w: www.vascroft.com t: 020 8963 3400 f: 020 8963 3401 Bu5000, Do4500, Jo4000, Jo5000, Sh4000

Vastern Timber

Vastern Wharf, The Sawmills, Wootton Bassett, Swindon, Wiltshire SN4 7PD e: sales@vastern.co.uk w: www.vastern.co.uk t: 01793 853281 f: 01793 855336 Be1000, Cd1000, Fl3500, Sa6000, Ti7600

Venturer Pte Ltd

315 Outram Road, 03-07 Tan Boon Liat Building, 169074, Singapore e: admin@venturer.biz w: www.venturer.biz t: 00 65 6487 6448 f: 00 65 6487 7871 Bu3000, Ce1000, Co9100, Co9200, Ti1500

Verteks Associates Ltd Lockington Hall, Lockington, Derby DE74 2RH e: design@verteks.co.uk w: www.verteks.co.uk t: 01509 672272

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TRADA Members

Verve Architects Ltd

66 Richmond Road, Cambridge, Cambridgeshire CB4 3PT e: estelle@vervearchitects.com w: www.vervearchitects.com t: 01223 360036 Ar2000

Vicaima Doors

Marlowe Avenue, Greenbridge Industrial Est, Swindon, Wiltshire SN3 3JF e: info@vicaima.com w: www.vicaima.com t: 01793 532333 f: 01973 530193 Do4500, Do5000, Jo4000, Pa8700

Vida Wood UK Ltd

Union House, 117 High Street, Billericay, Essex CM12 9AH e: richard@vidawood.co.uk w: www.vidawood.co.uk t: 01277 632525 f: 01277 630909 Ro2000, Ti0800, Ti7700

Vincent Timber Ltd

8 Montgomery Street, Sparkbrook, Birmingham, West Midlands B11 1DU e: sales@vincenttimber.co.uk w: www.vincenttimber.co.uk t: 0121 772 5511 f: 0121 766 6002 Cd1000, De2000, Ha7000, Mo0500, St6000

Vision Development

4a Field Barn Farm, Beenham Hill, Beenham, Reading, Berkshire RG7 5LT e: tim@vision-dsl.com w: www.timber-frame-suppliers.co.uk t: 01189 712181 f: 01189 714491 Bu3000, Bu6000, Ti1200, Ti1500, Ti2000

vkhp-consulting

340 High Street, Dorking, Surrey RH4 1QX e: dkg@vkhp.co.uk w: www.vkhp.co.uk t: 01306 881012 En2000

vkhp-consulting

The Forge, Little Mount Sion, Tunbridge Wells, Kent TN1 1YS e: tw@vkhp.co.uk w: www.vkhp.co.uk t: 01892 521841 f: 01892 533149 En2000

W

W F Brown Associates Ltd

The Old Hayloft, Pucknall Farm, Dores Lane, Braishfield, Romsey, Hampshire SO51 0QJ e: enquiries@wfba.co.uk w: www.consulting-engineers.co.uk t: 01794 368241 f: 01794 368991 Co4000, Co9100, En2000

W M Design & Architecture Ltd

Pier House, St Georges Road, Menai Bridge, Anglesey LL59 5EY e: info@wmdesign.co.uk w: www.wmdesign.co.uk t: 01248 717230 f: 01248 714930 Ar2500, Co4000, Co9300, Ho3000, Su1000

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Timber 2020 Industry Yearbook

W. L. West & Sons Ltd

Selham, Petworth, West Sussex GU28 0PJ e: sales@wlwest.co.uk w: www.wlwest.co.uk t: 01798 861611 Be1000, Cd1000, Fl3500, Ga4000, Ti7600

W. Richard Davis Ltd

Waterman Structures

2nd Floor, Victoria Wharf, 4 The Embankment, Sovereign Street, Leeds, West Yorkshire LS1 4BA w: www.watermangroup.com t: 0113 256 3322 En2000

Building 940, Kent Science Park, Sittingbourne, Kent ME9 8HL e: richard@wrdstructural.co.uk w: wrdstructural.co.uk t: 01795 422215 f: 01795 422215

Waterman Structures

Wain Morehead Architects Ltd

Belgrave House, 47 Bank Street, Sheffield S1 2DR w: www.watermangroup.com t: 0114 229 8900

NSC Campus, Mahon, Cork T12 X75N, Republic of Ireland e: wma@wma.ie w: www.wma.ie t: 00 353 21 230 7150 f: 00 353 21 230 7150 Ar2000, Co8800, En1000, Ti1200

Waind Gohil + Potter Architects 27 Bulwer Street, London W12 8AR e: studio@wgpa.co.uk w: www.wgpa.co.uk t: 020 8735 5367 Ar2000

Wales Timber Solutions

Unit 1 Pencefn Industrial Units, Ffestiniog, Gwynedd LL41 4PS e: info@walestimbersolutions.co.uk w: www.walestimbersolutions.co.uk t: 01766 762794 Bu7000, Ho3000, Ti1500, Ti2000, Ti2500

Walker Brothers (Timber Frames) Ltd Unit A, Kingmoor Park Harker Estate, Carlisle, Cumbria CA6 4RF e: office@walkerbros-timberframes.co.uk w: www.walkerbros-timberframes.co.uk t: 01228 674191 f: 01228 674273 Bu3000, Bu6800, Ho3000, Jo1000, Ti2000

Wallace Stone LLP

Doges Studio 2, Templeton on the Green, 62 Templeton Street, Glasgow G40 1DA e: glasgow@wallacestone.co.uk w: www.wallacestone.co.uk t: 0141 554 8233 f: 0141 554 4727

Wallace, A M

4-5 Norman Way, Ruardean, Gloucestershire GL17 9YP e: a.wallace700@btinternet.com t: 01594 544398

WALLtd

Ptolemy House, Lower Wharf, Wallingford, Oxfordshire OX10 9DN e: info@walltd.org.uk w: www.walltd.org.uk t: 01491 825434

Walters & Cohen Architects Ltd 2 Wilkin Street, London NW5 3NL e: mail@waltersandcohen.com w: www.waltersandcohen.com t: 020 7428 9751 f: 020 7428 9752 Ar2000

Waterman Structures

2nd Floor, South Central, 11 Peter Street, Manchester M2 5QR w: www.watermangroup.com t: 0161 839 8392 En2000

5th Floor, 1 Cornwall Street, Birmingham B3 2DX w: www.watermangroup.com t: 0121 212 7700

Waterman Structures

Waterman Structures

Pickfords Wharf, Clink Street, London, Greater London SE1 9DG e: edwin.bergbaum@watermangroup.com w: www.watermangroup.com t: 020 7928 7888 Co4000, Co5000, Co7000, En1500, En2000

Waterswood

5 Hazel Drive, Horringer, Bury St Edmunds IP29 5ST e: waterswoodbuilding@gmail.com t: 07767 697562

Watford Timber Co Ltd

Olds Approach, Tolpits Lane, Watford, Hertfordshire WD18 9RE e: wood@wattim.co.uk w: www.watfordtimber.co.uk t: 01923 711888 f: 01923 711675 Do3000, Md3000, Mo4500, Mo5000, Pa7500

Waugh Thistleton Architects 77 Leonard St, London EC2A 4QS e: info@waughthistleton.com w: www.waughthistleton.com t: 020 7613 5727 f: 020 7613 5749 Ar2000

WDC Engineers Ltd

Westwind Oak Buildings Ltd

Unit 1, Laurel Farm, Streamcross, Lower Claverham, Bristol, Avon BS49 4PZ e: info@westwindoak.com w: www.westwindoak.com t: 01934 877317 f: 01934 877567 Bu5000, Ho3000, Oa1000, Ti2000, Ti2500

Whitney Sawmills

Old Station Yard, Whitney-on-Wye, Hereford, Herefordshire HR3 6EZ e: office@whitneysawmills.com w: www.whitneysawmills.com t: 01497 831656 Be1000, Cd1000, Fl3500, Ha7000, Sa6000

Wiehag Timber Construction

Linzer Strasse 24, Altheim A - 4950, Austria e: j.rebhahn@wiehag.com w: www.wiehag.com t: 07757 813278 f: 00 43 7723 465 232 Bu8000, Gl2000, Lv1000, Pa8200, St8000

Willerby Special Projects

Imperial House, 1251 Hedon Road, Hull, North Humberside HU9 5NA e: pparks@whh.co.uk w: www.willerbyspecialprojects.com t: 01482 713826 f: 01482 225254

William Smalley RIBA

The Dairy, 40 Emerald Street, London WC1N 3QH e: studio@williamsmalley.com w: williamsmalley.com t: 020 7350 0028 Ar2000

Williams Homes (Bala) Ltd

Unit 18/19, Enterprise Park, Bala, Gwynedd LL23 7NL e: info@williams-homes.co.uk w: www.williams-homes.co.uk t: 01678 521781 f: 01678 521635 Bu3000, Ti2000

Wilson Design Associates

6 Station Road, Rickmansworth, Hertfordshire WD3 1QZ e: william@wdcengineers.co.uk t: 01923 770500

13 Hightown Road, Glengormley, Newtownabbey, County Antrim BT36 7TZ e: info@wilsonda.com t: 028 9087 9090 f: 028 9087 9091

Wedeman Consulting Ltd

Wings Ltd

Botley Mills, Mill Hill, Botley, Southampton, Hampshire SO30 2GB e: info@wedemanconsulting.co.uk w: www.wedemanconsulting.co.uk t: 01489 795594 Co9100, En2000, Ti1200

Westcountry Timber Frames

25 North Roskear Road, Camborne, Cornwall TR14 8PX e: wctframes@gmail.com w: www.westcountrytimberframes.co.uk t: 07760 106223 Ti2000

Western Timber Association

Marnsway, Pitmore Lane, Sway, Lymington, Hampshire SO41 6BW t: 01590 682054

Westructure Timber Frame Ltd

Commercial Unit 2, Aller Barton, Honiton Road, Cullompton, Devon EX15 1QQ e: team@westructure.co.uk w: www.westructure.co.uk t: 01884 34635 f: 01884 35389 Co9100, Ti1200, Ti1500, Ti2000, Ti2500

62 Le Banquage, Rue de Beaumont, Alderney GY9 3YP, Channel Islands e: wingsltd@me.com t: 07781 154154

Wiszniewski Thomson Architects 1/1 Gayfield Place, Edinburgh, Midlothian EH7 4AB e: honor@wt-architects.co.uk w: www.wt-architects.co.uk t: 0131 556 9966

Wolf Systems Ltd

Shilton Industrial Estate, Bulkington Road, Shilton, Coventry, West Midlands CV7 9QL e: mail@wolfsystem.co.uk w: www.wolfsystem.co.uk t: 024 7660 2303 f: 024 7660 2243 St8000, Ti1200, Tr4000, Tr5000

Wood Consultancy, The PO Box 9, Farnborough, Hampshire GU14 6YQ e: jhp@canadawooduk.org t: 01252 522545 f: 01252 522546

www.trada.co.uk

TRADA Members

Wood Panel Industries Federation

Autumn Park Business Centre, Dysart Road, Grantham, Lincolnshire NG31 7EU e: enquiries@wpif.org.uk w: www.wpif.org.uk t: 01476 512381 f: 01476 575683 As1000, Md2000, Or2000, Pa7200, Pa9300

Wood Protection Association 5C Flemming Court, Castleford, West Yorkshire WF10 5HW e: contact@thewpa.org.uk w: www.thewpa.org.uk t: 01977 558274 f: 01977 558274 As1000, Co8500, Fl1000, Pr1000

Wood Shop Ltd, The

15 Spinney Way, Needingworth, St Ives, Cambridgeshire PE27 4SR e: consultancy@thewoodshop.biz w: www.timberconsultancy.co.uk t: 01480 469367 f: 01480 469366 Ce1000, Co8700, Co9200, En5000, In3000

WoodBlocX Ltd

Munro Sawmills, Old Evanton Road, Dingwall, Ross-shire IV15 9UN e: admin@woodblocx.co.uk w: www.woodblocx.co.uk t: 0800 389 1420 Ga3000, La7000, Ra2000, So6000, St5000

Wooden House

Tor View, Constitution Hill, Wells, Somerset BA5 3NS e: info@woodenhouse.ltd w: www.woodenhouse.ltd t: 01749 667987 Br2000, Bu3000, Ho3000, Ti2500

Woodfield Brady Architects

WSP Group

Three White Rose Office Park, Millshaw Park Lane, Leeds LS11 0DL e: jeremy.wells@wspgroup.com w: www.wspgroup.com t: 0113 395 6200 f: 0113 395 6201 Co4000, Co5000, Co7000, Co9100, En2000

WSP Group

WSP House, 70 Chancery Lane, London WC2A 1AF w: www.wspgroup.com t: 020 7314 5000 f: 020 7314 5111

Wyatt Carruthers Jebb

Trident Court, 1 Oakcroft Road, Chessington, Surrey KT9 1BD e: hq@wcjeng.co.uk w: www.wcjeng.co.uk t: 01372 466118 Co4000, Co7000, Ed4000, En2000, Su1000

X

XLam NZ & Aus

60 Surrey Crescent, Grey Lynn, Auckland 1021, New Zealand e: enquiries@xlam.co.nz w: www.xlam.co.nz

Woodtrend Ltd

Y

1 Copthorne Close, Oakley, Bedford MK43 7SQ e: mark@woodworthas.co.uk t: 07730 349003

Wright Design

46 Kings Road, Kings Heath, Birmingham, West Midlands B14 6TT e: wrightgraham@yahoo.co.uk t: 07531 983771 Su1000

WSP Buildings Ltd

Mountbatten House, Basing View, Basingstoke RG21 4HJ w: www.wspgroup.com

WSP Group

Colston 33, Colston Avenue, Bristol BS1 4UA w: www.wspgroup.com t: 0117 930 2000 f: 0117 929 4624 Co4000, Co5000, Co9100, En1500, En2000

www.trada.co.uk

Industriestrasse 2, Aichach 86551, Germany e: timber@zueblin.de w: www.zueblin-timber.com/en.html t: 00 49 8251 9080 Br2000, Bu3000, Bu8000, Co9100, Co9200

39 Lammas Street, Carmarthen, Carmarthenshire SA31 3AL e: watts_martin@btconnect.com t: 01267 234294 f: 01267 236328 Co4000, Co9100, En2000

Xspace

Woodworth Architectural Services

ZUBLIN Timber GmbH

Wyatt & Watts

Arlington House, Curridge, Newbury, West Berkshire RG18 9EF e: allan@woodfieldbrady.co.uk w: www.woodfieldbrady.co.uk t: 01635 247100 Ar2000 25 Beethoven Street, London W10 4LG e: info@woodtrend.co.uk w: www.woodtrend.co.uk t: 020 7460 5000 Cd1000, De2000, Fl4000, Ha7000, Ti7600

Z

101 Woodlands Avenue, Poole, Dorset BH15 4EG e: ian@xspace.co.uk w: www.xspace.co.uk t: 01202 665387

Yeoman Ltd

Suite 6, 5 Kings Mount, Ramparts Business Park, Berwick upon Tweed, Northumberland TD15 1TQ e: yeomandesign@aol.com t: 01289 303960 f: 01289 303961 Ar2500, Co4000, Co8800, Co9300, Su1000

YES Engineering Group Ltd 75 East Road, London N1 6AH e: info@yeseng.co.uk w: www.yeseng.co.uk t: 020 7566 0060 f: 020 3475 3726 Co4000, En2000

Young Consulting Engineers

Unit 3 West Good Yard, Dundonald Road, Wimbledon SW19 3QS e: aourel@youngce.com w: www.youngce.com t: 020 7096 0352 En2000

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TRADA Buyers’ guide

Buyers’ guide index

A

D

Adhesives, Manufacturers & Suppliers

Architects Ar2000 Ar2500 Architectural Technologists

Associations, Federations & Institutions As1000 Ad1000

274 274 274 275

B Beams Be1000 275 Bridges, Manufacturers & Suppliers Br2000 275 Bu1000 Builders Merchants

275 Bu3000 Building Contractors

275 Building Control Services Bu3500 275 Bu4000 Buildings, Agricultural: Manufacturers & Suppliers

275 Buildings, Conservatories: Manufacturers & Suppliers Bu5000 275 Buildings, Log Cabins: Manufacturers & Suppliers Bu6000 275 Buildings, Portable: Manufacturers & Suppliers Bu6500 275 Buildings, Sectional Timber: Manufacturers & Suppliers Bu6800 275 Buildings, Sheds: Manufacturers & Suppliers Bu7000 276 Buildings, Timber Hybrid Systems Bu8000 276

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Timber 2020 Industry Yearbook

278 278 279 279 279 279 279 279

E Educational Establishment Ed4000 Energy Efficiency Products & Services En1000 Engineering Services, Mechanical En1500 Engineers, Civil & Structural En2000 Environmental Assessment En3000 Environmental Campaigners En4000 Environmental Certification Services En5000

279 279 279 279 280 280 280

F

C Carpenters Ca0500 Carpentry & Joinery Services Cj1000 Certification & Sustainable Sourcing Advisors Ce1000 Certification Bodies Ce2000 Cladding Cd1000 Coating Manufacturers Co1500 Coatings Flame Retardant Co1700 Consultants, Acoustic Co3000 Consultants, Building Co4000 Consultants, Business Co4500 Consultants, Computer Co4650 Consultants, Environmental Co5000 Consultants, Fire Safety Co5250 Consultants, Forestry Co5500 Consultants, Health & Safety Co7000 Consultants, Interior Design & Furniture Co6500 Consultants, Low Energy Architecture Co7250 Consultants, Management Co7500 Consultants, Preservation Co8500 Consultants, Product Co8700 Consultants, Project Management Co8800 Consultants, Recruitment Co9050 Consultants, Technical: Timber Co9200 Consultants, Timber Engineering Co9100 Contract Management Co9300 Cross-Laminated Timber Manufacturers Cl1000

Decking De2000 Door Blanks Do1000 Door Distributors & Importers Do2000 Door Manufacturers Do2500 Door Merchants Do3000 Door Seals Do4000 Doors, Fire Resisting Do4500 Doors, Non-standard Do5000

276 276 276 276 276 276 276 276 276 277 277 277 277 277 277 277 277 277 277 277 277 277 277 278 278 278

Fastenings & Fixings for Timber Fa1000 Fencing Manufacturers Fe2000 Fencing Material Suppliers Fe3000 Fibre Building Board, Manufacturers Fi2000 Fibre Building Board, Merchants Fi4000 Finishing Equipment Fi6000 Fire Detection & Prevention Equipment Fi7000 Flame Retard Impregnation Services Fl1000 Floor Sealants Fl2500 Flooring, Hardwood: Agents & Importers Fl3000 Flooring, Hardwood: Manufacturers Fl3500 Flooring, Hardwood: Merchants & Suppliers Fl4000 Flooring, Laminate: Merchants & Suppliers Fl5000 Flooring, Softwood: Agents & Suppliers Fl6300 Flooring, Softwood: Merchants & Suppliers Fl7000 Furniture Designers Fu3000 Furniture Manufacturers Fu4000

280 280 280 280 280 280 280 281 281 281 281 281 281 281 281 281 281

G Garden Furniture Manufacturers & Suppliers Ga3000 Gates Ga4000 Glued Laminated Timber (Glulam) Manufacturers Gl1000 Glued Laminated Timber (Glulam) Merchants & Suppliers Gl2000 Government Departments Go2000

281 281 281 281 281

www.trada.co.uk

TRADA Buyers’ guide

O

H Handles, Wood

Hardwood, Environmentally Certified Ha7000 Heritage & Conservation Services He1000 House Builders Ho3000 Housing Association Ho4000 Ha2000

281 281 281 281 282

Insurance Agents & Brokers In2000 Internet Services In3000

282 282

J Jo2000

282 282 282 282 282

K Kitchen Worktops Ki3000

282

L Lacquer Manufacturers & Suppliers

Laminated Veneer Lumber (LVL) Lv1000 La4000 Laminates, Worktop

Laminating Services, Panel Products La6000 Landscape Architectural Supplies La7000 Landscape Designers La9000 Local Authority Departments Lo1000 Louvres, External Lo2000 La1000

282 282 282 282 282 282 282 282

M Machinery Manufacturers and Suppliers Ma1500 Machining Services Ma2500 MDF, Agents & Importers Md1000 MDF, Manufacturers Md2000 MDF, Suppliers & Merchants Md3000 Modified Wood, Manufacturers & Suppliers Mo0500 Mouldings, Hardwood: Manufacturers & Suppliers Mo4500 Mouldings, Softwood: Manufacturers & Suppliers M05000

www.trada.co.uk

Oak Trusses

Oriented Strand Board Manufacturers Or2000 Oriented Strand Board Merchants Or3000 Oriented Strand Board Agents & Importers Or1000

283 283 283 283

P

I Joiners Jo1000 Joinery Importers Jo3000 Joinery Manufacturers Jo4000 Joinery Merchants & Distributors Joinery, Architectural Jo5000

T Oa1000

282 282 282 282 282 283 283 283

Packing Case & Box Manufacturers & Suppliers Pa1000 Paints Pa3000 Paints, Flame Retardant Pa4000 Pallet Manufacturers & Suppliers Pa5700 Panel Cutting Services Pa6200 Panel Products Agents & Importers Pa7000 Panel Products Manufacturers Pa7200 Panel Products Merchants & Suppliers Pa7500 Panels, Edge Glued Pa7700 Panels, Flame Retardant Pa8000 Panels, Laminated Pa8200 Panels, Plastic & Melamine Faced Pa6200 Panels, Veneered Pa8700 Particleboard Agents & Importers Pa8800 Particleboard Manufacturers Pa9300 Playground Equipment Manufacturers & Suppliers Pg1000 Plywood & Blockboard Agents & Importers Pl1000 Plywood & Blockboard, Decorative Pl2000 Plywood & Blockboard, Flame Retardant Pl3000 Pole Suppliers Po1000 Preservation & Treatment Services Pr1000

283 283 283 283 283 283 283 283 283 283 283 283 283 283 283 283 283 284 284 284 284

R Railway Sleepers Ra2000 Reclaimed Timber Suppliers Re1000 Remedial Treatment Services Re3000 Research & Development Services Re4000 Restoration Specialists Re6000 Roofing Material Suppliers Ro2000

284 284 284 284 284 284

Testing Services, Acoustic Te0500 Testing Services, Fire Te2000 Testing Services, Mechanical Te3000 Testing Services, Product Te3500 Testing Services, Structural Te4000 Timber Agents & Importers, General Ti0200 Timber Agents & Importers, Hardwood Ti0500 Timber Agents & Importers, Softwood Ti0800 Timber Components, Agents & Importers Ti0900 Timber Drying Services Ti1000 Timber Frame Design Services Ti1200 Timber Frame Manufacturers Ti2000 Timber Frame Site Erection Services Ti1500 Timber Frame, Ancillary Components Ti2700 Timber Frame, Carpentry Framed Structures Ti2500 Timber Growers Ti4000 Timber Impregnation Plant Suppliers Ti7000 Timber Merchants, General Ti7500 Timber Merchants, Hardwood Specialist Ti7600 Timber Merchants, Softwood Specialist Ti7700 Tools, Power To0500 Trussed Rafter Manufacturers & Suppliers Tr4000 Trussed Rafter Manufacturing Equipment Tr5000

285 285 285 285 285 285 285 285 285 285 285 286 286 286 286 286 286 286 286 287 287 287 287

V Vapour Permeable Membranes Va0500 Varnish Manufacturers & Suppliers Va1000 Veneer Agents, Importers & Distributors Ve1000 Veneering Services Ve3000

287 287 287 287

W Warranty Bodies Wa1000 Window Manufacturers Wi2000 Windows, Hardwood Wi3000 Windows, Softwood Wi4000 Woodturning Services Wo2000

287 287 287 287 287

S Sawmills, British Timber Sa6000 Sawmills, General Sa6500 Sawmills, Hardwood Sa7000 Sawmills, Softwood Sa8000 Shopfitters Sh4000 SIPS Manufacturers & Suppliers St8500 Software So1000 Softwood, Environmentally Certified So6000 Stain Manufacturers & Suppliers St1000 Stair Components St2000 Staircases St3000 Street Furniture, Timber St5000 Strength Graded Timber St6000 Structural Component Manufacturers & Suppliers St8000 Structural Timber Composite Material St9000 Surveyors, Building Su1000 Surveyors, Quantity Su2000

284 284 284 284 284 284 284 284 284 284 284 284 284 284 284 285 285

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ADHESIVES, MANUFACTURERS & SUPPLIERS Ad1000 – AkzoNobel Industrial Coatings Ltd/Sikkens Joinery – Bona Ltd – Rotafix (Northern) Ltd

ARCHITECTS

Ar2000 – 3dr Architects Ltd – A W W – Aaron Evans Architects Ltd – ABIR Architects – Acanthus Clews Architects – Adams & Sutherland – al3d – Allford Hall Monaghan Morris – Allies and Morrison – Allison Pike Partnership – Anderson Associates Chartered Architect Ltd – Anderson Bell & Christie – Ann Nisbet Ltd – Ansell & Bailey Ltd Chartered Architects – Anthony Swaine Architecture – Arbor Architects – Arboreal Architecture Ltd – Architects Plus (UK) Ltd – Architecture One Eight – Architecture PLB – Architype Ltd – Arthur Architects – Associated Architects – Astudio – A-Tec Design – Atelier HB – Aukett Swanke – Avanti Architects – Axiom Architects – Barefoot and Gilles – BB Partnership Ltd – bb+c Architects Ltd – Ben Jones Architects – Bench Architects – BH & M – Bickerdike Allen Partners LLP – Blackett-Ord Conservation Ltd – Blair Gratton Architects Ltd – Blake Architects Ltd – Blake Hopkinson Architecture LLP – Blake, Gavin RIBA FRSA: Chartered Architect – Boundary Space – Boxco2 Consultants Ltd – Bucholz McEvoy Architects Ltd – Buckley Gray Yeoman – Building Design Partnership Ltd – Burrell Foley Fischer LLP – Burwell Deakins Architects – C P Architects – Campbell Jackson Architects – Carr Cotter & Naessens – Cassidy + Ashton Group Ltd – Charnwood Timber Frame – Cook Associates – CT architect – Cullinan Studio – CZWG Architects LLP – D Kelly Design – Dannatt Johnson Architects – David McKeever Architect – David Mee Architect – David Morley Architects – David Parker Architects Ltd – Design Engine Architects Ltd – Designcell Architecture – Donaghy and Dimond Architects – Donald Millar Architecture – Douglas Homes (Bristol) Ltd – dRMM Architects – Dualchas Architecture Ltd – dwell design ltd – E & P Building Design – E P T Partnership

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– E.R.Verrall RIBA – Edward Hunt & Co – Entrust Support Services Ltd – EPR Architects Ltd – Eric Oberlander Architect – Feilden Clegg Bradley Studios – Field Architecture Ltd – Fiona Darey Architecture & Interiors – Foster + Partners – Frederick Gibberd Partnership – Garnham Wright Associates – Geoff Crowther Architects Ltd – Gerry Robb Architectural Design Services – GNP Chartered Architects – Good Architecture – Grant Bulloch Architect – Greenfields Design Ltd – Grindley Architects – GRT – GWP Architecture Ltd – H M H Architects – Halsall Lloyd LLP – Halvorsen Architects – Harrison Sutton Partnership – Hawkins Brown Architects – Haworth Tompkins Architects – Haysom Ward Miller Architects – Hazel Crawford Architect – Hazle McCormack Young LLP – Helen Lucas Architects Ltd – Hilton Barnfield Architects – Hive Architects Studio Ltd – HLM Architects – Hopkins Architects – Hoskins Architects – Hypostyle Architects – Ian Chalk Architects Ltd – Ian O'Brien Studio Ltd – Inside Out Architecture – Integration Architecture – Jennings Design Associates Ltd – Jestico + Whiles – Jill Andrews Architect – JMAD Architecture – John Renshaw Architects – Julian Bishop - Architect – Julian Owen Associates Architects – Kaner Olette Architects – Karen Gardner Architect – Kast Architects Ltd – KDS & Associates Ltd – Kelly & MacPherson Architects – Kendall Kingscott Ltd – Knox Bhavan Architects LLP – Lacey Hickie Caley Ltd – Langstaff Day Architects – Laurent Mot Ltd – Lawrence Duck Architecture – Lawrenson Associates – Lee Evans Partnership – Lee Fitzgerald Architects – Len Smith Consulting Ltd – Liv Architects – Lovelock Mitchell Architects – M K A Architects Ltd – Maccreanor Lavington Ltd – Macdonald Wright Architects – Mackellar Schwerdt Architects LLP – Marshall, William J & Partners – MAST Architects – MawsonKerr Architects – Maxwell & Company Architects and Designers Ltd – Method Architecture – Michaelis Boyd – Mike Parkes Associates – Mikhail Riches – Milton Architects Ltd – Mime Architects Ltd – Mole Architects – Morgan Carey Architects Ltd – MR Partnership Ltd – Napper Architects Ltd

– Nash Partnership LLP – Neil Ferguson Chartered Architect – Nicholas Hare Architects LLP – Nick Midgley Design – NPS South West Ltd – O'Keefe Scanlon Ltd – ORMS Architecture Design – PAC Studio Ltd – PAD Studio – Paper Project Architecture and Design Ltd – Passivhaus Homes – PDP London – Pedder & Scampton Architects – Pembroke Design Ltd – Peter Scott Architecture Ltd – Piercy & Co – Pollard Thomas Edwards Architects – Prewett Bizley – Prime Meridian – Pringle Richards Sharratt Architects – Probyn Miers – Proctor and Matthews Ltd – Property Maintenance Services Directorate – PRP – Rhys Llwyd Davies - Architect | Pensaer – Richard Griffiths Architects – Richard Morton Architects Ltd – RMA Architects – Robert Millerchip Designs Ltd – Robert Rowett Architectural Services – RPC Architectural Design Ltd – RPS – SHERPA Connection Systems – SKArchitects Ltd – Sophie Bates Architects – Soup Architects – Stephen Davy Peter Smith Architects Ltd – Sterry, Nigel F – Steve Eastland Design Ltd – Steven Fraser Chartered Architect – Stora Enso UK Ltd – Stride Treglown Ltd – Stuart Page Architect – Studio RHE Ltd – studioEAST Chartered Architects – Suetake Studio 2 – The Architects Design Ltd – The E Studio – Tooley & Foster Partnership, The – Townshend Landscape Architects Ltd – Trewin Design Architects – Ty Afal – Verve Architects Ltd – Wain Morehead Architects Ltd – Waind Gohil + Potter Architects – Walters & Cohen Architects Ltd – Waugh Thistleton Architects – William Smalley RIBA – Woodfield Brady Architects

ARCHITECTURAL TECHNOLOGISTS

Ar2500 – 16a Architecture – A & K Architectural Services – A W W – Allison Pike Partnership – Andrew Howard & Partners – Ansell & Bailey Ltd Chartered Architects – Apex Timber Frames Ltd – Arthur Architects – A-Tec Design – Bilton Architectural Services Ltd – Craig McDowall Architectural Services Ltd – D Kelly Design – David Norris Associates – David Parker Architects Ltd – D-Tech Design Ltd – E K Drawing Service Ltd – Edward Parsley Associates – Faber Technical Ltd – Gerry Robb Architectural Design Services

www.trada.co.uk

TRADA Buyers’ guide

– Greenfields Design Ltd – Hammond Architectural Services Ltd – HLM Architects – Hutton & Rostron Environmental Investigations Ltd – IAF Design – Ian Slater Architectural Design – JMAD Architecture – Kelsham Ltd – Lacey Hickie Caley Ltd – MAST Architects – Philip Hawkey Architectural Design – Pollard Architectural – PPK Timber Designs Ltd – Premier Timber Design Services Ltd – Property Maintenance Services Directorate – Rider Levett Bucknall UK Ltd – RLH Architectural Design Solutions – Robert E Fry & Associates Ltd – Robert Rowett Architectural Services – Shawn Winn, Draughtsman – Steve Gilman Design Ltd – Straight Up Timber Frame Ltd – T F S Design Ltd – Technical & Graphic Design Services Ltd – Toni Moses Design Ltd – Trewin Design Architects – W M Design & Architecture Ltd – Yeoman Ltd

ASSOCIATIONS, FEDERATIONS & INSTITUTIONS As1000 – American Hardwood Export Council – British & Irish Association of Fastener Distributors Ltd – British Woodworking Federation – Builders Merchants Federation – Department of Agriculture, Marine and Food – East Anglian Timber Trade Association – FIRA International Ltd – Ghana Forestry Commission – Guild of Master Craftsmen, The – NBS – RNLI – Timber Decking & Cladding Association – Timber Trade Federation – Trussed Rafter Association – Wood Panel Industries Federation – Wood Protection Association

BEAMS

Be1000 – English Woodlands Timber Ltd – iWood Timber Ltd – SHERPA Connection Systems – Vastern Timber – W. L. West & Sons Ltd – Whitney Sawmills

BRIDGES, MANUFACTURERS & SUPPLIERS Br2000 – Arbonis – Constructional Timber (Manufacturers) Ltd – CTS Bridges Ltd – Green Oak Carpentry Company Ltd, The – Simonin – Wooden House – ZUBLIN Timber GmbH

BUILDERS MERCHANTS Bu1000 – Arnold Laver – Bell & Sime Buildbase – Bolt Building Supplies Ltd – Buildbase Ltd – Canvey Wharf Co Ltd, The – Chadwicks (Mowbray Drive) Ltd – Fleming Buildbase – Gibbs & Dandy www.trada.co.uk

– Hay & Co Buildbase – Hendricks Lovell – J P Corry Group Ltd – Mid-Sussex Timber Co Ltd

BUILDING CONTRACTORS Bu3000 – 21st Century Carpentry Building Services Ltd – 4 Seasons Full Conversions Ltd – A R Morris Building & Joinery Contractor Ltd – Acer Building Services Ltd – Addison Construction Ltd – Andrew Davie Timber Frame Homes – Andrew Page Oak – Arbonis – Ashbrooke Homes Ltd – Aspen Lodges Ltd – Atlantic Contracts Ltd – BakerHicks – Beard – Belac Group Ltd – Bespoke Timber Frames – Blou Construction Ltd – Brendan Flynn Construction Ltd – Bridgewater Building Solutions – CGL Homes Ltd – Citu Group Developments – Countryside Properties Timber Frame – Curryhills Civil Engineering Ltd – D.L. Hatfield Carpentry – Day & Co Construction – Denmore Homes Ltd – D'Ovidio Bros Ltd – E. E. Smith Contracts Ltd – EDIFICA Ltd – Elliott Off-Site Building Solutions – Encasement Contracts Ltd – English Heritage Buildings LLP – EURBAN – Exact Construction – Fleming Buildings Ltd – GCTF Ltd (General Construction & Timber Frame) – G-frame Structures – Hands On Wood Ltd – Highfield (Cumbria) Ltd – Horohoe Construction Ltd – I D Carter Ltd – Inner World Design & Build Ltd – Jessella LTD – JML Contracts Ltd – Kape Marine Ltd – Kendo Contracts Ltd – Kenford Builders Ltd – Kind & Co (Builders) Ltd – Kithurst Builders – Lissett Homes – Lovell Partnerships Ltd – M & K MacLeod – Mace – Mackenzie Hughes Ltd – Martin Robinson Carpentry Ltd – MBM Contracts Ltd – Moduloft – Morgan Sindall Construction and Infrastructure Ltd – Morgan Sindall Group PLC – Myriad Construction Ltd – NDM (Metal Roofing & Cladding) Ltd – Nene Valley Fire & Acoustic Ltd – New Build Modular Ltd – Norfolk Timber Frames Ltd – Novus Property Solutions Ltd – Oakridge Building Company – Oban Joinery Services Ltd – Overbury PLC & Morgan Lovell – Panorama Contractors Ltd – Parkside Combined Technical Services Ltd – Pinelog Ltd – PMS Oxford – R & K Design and Build – RAAM Construction Ltd

– Red Realisations Ltd – Ring Tree Projects Ltd – simplydesignsolutions – Simpson (York) Ltd – Sir Robert McAlpine Ltd – Steve Coleman (Timber Erectors) Ltd – T F S Design Ltd – TECMAN Industry SAL – Timber Construction & Renovation Ltd – Timber PAK – Timbertek Ltd – Tingdene Homes Ltd – Torlock Ltd – Trivselhus UK – UK & European Construction Ltd t/a Ranns Construction – V L J English Oakcroft – Venturer Pte Ltd – Vision Development – Walker Brothers (Timber Frames) Ltd – Williams Homes (Bala) Ltd – Wooden House – ZUBLIN Timber GmbH

BUILDING CONTROL SERVICES

Bu3500 – C P R (Construction Plans & Regulations) Ltd – Civil and Structural Engineering Shetland Ltd – Kingfisher – Quadrant Approved Inspectors

BUILDINGS, AGRICULTURAL: MANUFACTURERS & SUPPLIERS Bu4000 – The Stable Company (Goodricks) Ltd

BUILDINGS, CONSERVATORIES: MANUFACTURERS & SUPPLIERS

Bu5000 – Dempsey Dyer Ltd – Norscot Joinery Ltd – T J Crump Oakwrights Ltd – Taylor Made Joinery Interiors Ltd – Vale Garden Houses Ltd – Vascroft Contractors Ltd – Westwind Oak Buildings Ltd

BUILDINGS, LOG CABINS: MANUFACTURERS & SUPPLIERS Bu6000 – Aspen Lodges Ltd – Cartledge Timber Frame – Gibbs Timber Frame Ltd – Pennine Timber Frame (UK) Ltd – Pinelog Ltd – Timberworks Europe – Urban Marque – Vision Development

BUILDINGS, PORTABLE: MANUFACTURERS & SUPPLIERS Bu6500 – Ascot Timber Buildings Ltd – Building With Frames – Urban Marque

BUILDINGS, SECTIONAL TIMBER: MANUFACTURERS & SUPPLIERS Bu6800 – A J Laminated Beams Ltd – Allwood Timber Construction – Benfield ATT Group Ltd – Coed Cymru – English Heritage Buildings LLP – Envirograf – Fleming Buildings Ltd

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TRADA Buyers’ guide

– GCTF Ltd (General Construction & Timber Frame) – Harlow Bros Ltd – Lowfield Timber Frames Ltd – Neatwood Homes Ltd – Oak Frames Direct – Pinelog Ltd – Scotts of Thrapston Ltd – Space4 Ltd – Swift Timber Homes Ltd – The Stable Company (Goodricks) Ltd – Timber Frame Management Ltd – Townsend Timber – Urban Marque – Walker Brothers (Timber Frames) Ltd

BUILDINGS, SHEDS: MANUFACTURERS & SUPPLIERS Bu7000 – Frame UK – Lowfield Timber Frames Ltd – Space4 Ltd – Wales Timber Solutions

BUILDINGS, TIMBER HYBRID SYSTEMS Bu8000 – Arbonis – Building With Frames – Cowley Timber & Partners Ltd – Egoin UK Timber Construction – G-frame Structures – Simonin – STREIF – The Stable Company (Goodricks) Ltd – Wiehag Timber Construction – ZUBLIN Timber GmbH

CARPENTERS Ca0500 – Brendan Flynn Construction Ltd – Calanpoint Contracts Ltd – Constructs South West Ltd – Exterior Decking – Geo. Oliver & Son – Hazelwood Carpentry Contractors Ltd – Oakwood Timberframe Ltd – Steve Coleman (Timber Erectors) Ltd – Tek Fire Door Services CARPENTRY & JOINERY SERVICES

Cj1000 – 21st Century Carpentry Building Services Ltd – Blou Construction Ltd – Brodies Timber – GCTF Ltd (General Construction & Timber Frame) – Geo. Oliver & Son – GMIT – H&M Carpentry Ltd – Havelock ONE – Inner World Design & Build Ltd – JJ Interiors (Southwest) Ltd – M T Daniels Ltd Carpentry & Joinery – Marshall Specialist Joinery Ltd – Oakwood Timberframe Ltd – Robert Danielson – Rogerson and Protheroe Construction Ltd – Structural Timber Design Services Ltd – Timbertek Ltd – TMJ Contractors Ltd – Torlock Ltd

CERTIFICATION & SUSTAINABLE SOURCING ADVISORS

Ce1000 – FIRA International Ltd – Machined Timber Specialists – Sustainable Construction Solutions Ltd – Venturer Pte Ltd – Wood Shop Ltd, The

CERTIFICATION BODIES

Ce2000 – BM TRADA – Boyle Consultants Ltd – Brooks Bros (UK) Ltd – BTS Timber Engineering Ltd – Cameron & Ross – Civil & Structural Partnership Ltd – Civil and Structural Engineering Shetland Ltd – Cowan Consultancy Ltd – David Narro Associates – David R Murray & Associates – E A R Sheppard Consulting Civil & Structural Engineers Ltd – Evolve – Forbes Leslie Network – Goodson Associates – Harry Turnbull Ltd, Consulting Civil Engineer – HGA (UK) Ltd – Ramsay and Chalmers – Structural Solutions – Tim Kelly Consulting Engineers

CLADDING Cd1000 – A C Timber Solutions Ltd – Abbey Woods – BCL Timber Projects Ltd – Beaumont Forest Products Ltd – Benchmark Timber Ltd – Brooks Bros (UK) Ltd – Building With Frames – Capricorn Eco Timber – Champion, A W Ltd – Co2 Timber Supplies – Cowley Timber & Partners Ltd – Davidson Timber UK Ltd – English Woodlands Timber Ltd – Hoppings Softwood Products PLC – iWood Timber Ltd – James Latham PLC – Joseph Griggs & Co Ltd – Koppers – Millworks Timber Specialists – Norman Ltd – PiveteauBois – Quinn Hardwoods Ltd – Silva Timber Products Ltd – Stourhead (Western) Estate – Thorogood Timber Ltd – Timber Focus – Vastern Timber – Vincent Timber Ltd – W. L. West & Sons Ltd – Whitney Sawmills – Woodtrend Ltd COATING MANUFACTURERS

Co1500 – AkzoNobel Industrial Coatings Ltd/Sikkens Joinery – Bona Ltd – Envirograf – Teknos GBI

COATINGS FLAME RETARDANT Co1700 – Fabric Flare Solutions Ltd – Holman Specialist Paints Ltd – Rawlins Paints

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CONSULTANTS, ACOUSTIC

Co3000 – EDIFICA Ltd – Paragon Acoustic Consultants Ltd

CONSULTANTS, BUILDING

Co4000 – A & K Architectural Services – A T K Partnership Ltd – ABIR Architects – Allison Pike Partnership – Andrew Baxter Ltd – Andrew Howard & Partners – Arbor Architects – Austin Trueman Associates – B G Consulting Ltd – Barry Honeysett Consulting Structural & Civil Engineers – Baynham Meikle Partnership – BdR Civil & Structural Engineering Ltd – Betts Associates Ltd – Bickerdike Allen Partners LLP – Bingham Yates Ltd – BRANZ Ltd – Broughton Beatty Wearring Ltd – Buro Happold Ltd – C & C Markides Estates Ltd – C P R (Construction Plans & Regulations) Ltd – Cameron & Ross – Campbell of Doune Ltd – Canham Consulting – Complete Design Partnership Ltd – Cowan Consultancy Ltd – Croft Structural Engineers – D A Ryland Structural Engineer – David Norris Associates – David Parker Architects Ltd – Dixon Hurst Ltd – D-Tech Design Ltd – E & P Building Design – EDIFICA Ltd – Elliott Wood Partnership Ltd – Entrust Support Services Ltd – Faber Technical Ltd – FAIRHURST – FLUID Structural Engineers – Forest Hill Design – Francis Bradshaw Partnership – GB Consulting – Goodson Associates – Greenfields Design Ltd – Hammond Architectural Services Ltd – Hartigan – Haydn E Williams Cyf. Chartered Surveyors – HGA (UK) Ltd – HM Chambers and Partners – Hockley & Dawson – Holbrook Design Ltd – Hutton & Rostron Environmental Investigations Ltd – IAF Design – James Lockyer Associates Ltd – Jenkins & Potter Ltd – Julian Owen Associates Architects – Keniry Furniture/Construction – KRP Building Consultancy Ltd – L F Webb & Partner – Lawrenson Associates – Len Smith Consulting Ltd – M K A Architects Ltd – Mackellar Schwerdt Architects LLP – MacLeod & Jordan Consulting Engineers Ltd – Marshall, William J & Partners – Mason Clark Associates – Maughan Reynolds Partnership – Maxwell & Company Architects and Designers Ltd – McColl Associates – McCurdy & Co Ltd – McGregor McMahon (Scotland) Ltd – Michael Barclay Partnership LLP – Mike Parkes Associates – Mime Architects Ltd – O'Dwyer, Nicholas Ltd

www.trada.co.uk

TRADA Buyers’ guide

– Pembroke Design Ltd – Perega – Peter Brett Associates LLP – Peter Dann Ltd – Philip Hawkey Architectural Design – Pittilla Bell Consulting Ltd – Pollard Architectural – PPK Timber Designs Ltd – Price & Myers – Ramboll – Robert E Fry & Associates Ltd – Robert Rowett Architectural Services – Robert Stone Associates – Roger Casey Associates Ltd – RWA Consulting Engineers – S C E G Ltd – Sandy Fraser Associates – Scott White and Hookins LLP – Straight Up Timber Frame Ltd – Structural Design Associates Ltd – Structural Timber Design Services Ltd – StructureMode Ltd – Sustainable Construction Solutions Ltd – TALL Engineers Ltd – Tim Kelly Consulting Engineers – Tottenham & Bennett – Trevor Derby Associates – Trewin Design Architects – W F Brown Associates Ltd – W M Design & Architecture Ltd – Waterman Structures – WSP Group – Wyatt & Watts – Wyatt Carruthers Jebb – Yeoman Ltd – YES Engineering Group Ltd

CONSULTANTS, BUSINESS Co4500 – ARV Solutions – Oak House Consultants Ltd – Ten-25 Software

CONSULTANTS, FORESTRY Co5500 – English Woodlands Timber Ltd

CONSULTANTS, HEALTH & SAFETY Co7000 – Andrew Firebrace Partnership – British Woodworking Federation – Duffy Chartered Engineers IRL – E & P Building Design – Ellis and Moore Consulting Engineers – Fidler Associates Ltd – Lacey Hickie Caley Ltd – Mason Clark Associates – Norder Design Associates – Oak House Consultants Ltd – Perega – Pittilla Bell Consulting Ltd – Robert Rowett Architectural Services – Sanders Consulting – Sandy Fraser Associates – Scott White and Hookins LLP – Trevor Derby Associates – Waterman Structures – WSP Group – Wyatt Carruthers Jebb

CONSULTANTS, INTERIOR DESIGN & FURNITURE Co6500 – GMIT – Shawn Winn, Draughtsman

CONSULTANTS, LOW ENERGY ARCHITECTURE Co7250 – Arbor Architects – Associated Architects

CONSULTANTS, MANAGEMENT

CONSULTANTS, COMPUTER Co4650 – Ten-25 Software

Co7500 – Clarke Matthews Ltd – FIRA International Ltd – Oak House Consultants Ltd – Ten-25 Software

CONSULTANTS, ENVIRONMENTAL

CONSULTANTS, PRESERVATION

Co5000 – Acanthus Clews Architects – Baynham Meikle Partnership – Betts Associates Ltd – Bickerdike Allen Partners LLP – BWB Consulting Ltd – Campbell Reith Hill LLP – EDIFICA Ltd – FAIRHURST – FIRA International Ltd – Hartigan – HLM Architects – James Lockyer Associates Ltd – O'Dwyer, Nicholas Ltd – Peter Brett Associates LLP – Plandescil Ltd – PRP – RPS – Sustainable Construction Solutions Ltd – TRP Consulting Ltd – Waterman Structures – WSP Group

CONSULTANTS, FIRE SAFETY

Co5250 – C P R (Construction Plans & Regulations) Ltd – Tek Fire Door Services

www.trada.co.uk

Co8500 – Hutton & Rostron Environmental Investigations Ltd – Keniry Furniture/Construction – Lonza Wood Protection – Mackellar Schwerdt Architects LLP – McCurdy & Co Ltd – Wood Protection Association

CONSULTANTS, PRODUCT Co8700 – Andrew Baxter Ltd – Machined Timber Specialists – Oak House Consultants Ltd – Wood Shop Ltd, The

CONSULTANTS, PROJECT MANAGEMENT

Co8800 – A L Project Services – Acanthus Clews Architects – Arthur Architects – C & C Markides Estates Ltd – Campbell Reith Hill LLP – Clarke Matthews Ltd – Duffy Chartered Engineers IRL – E & P Building Design – E A R Sheppard Consulting Civil & Structural Engineers Ltd – EDIFICA Ltd – FAIRHURST – Fidler Associates Ltd

– Francis Bradshaw Partnership – Geoff Crowther Architects Ltd – Halsall Lloyd LLP – IAF Design – James Lockyer Associates Ltd – Jenkins & Potter Ltd – Len Smith Consulting Ltd – Maxwell & Company Architects and Designers Ltd – Nicholas Hare Architects LLP – Norder Design Associates – Pembroke Design Ltd – Pennine Timber Frame (UK) Ltd – Peter Brett Associates LLP – Peter Dann Ltd – Pittilla Bell Consulting Ltd – PRP – RNLI – Robert Stone Associates – Sandy Fraser Associates – Self-Build-Pro (Chartered Surveyors) – Stirling Maynard – Stride Treglown Ltd – Struct-SURE & Building Design – Sustainable Construction Solutions Ltd – Terence Fidler Partnership Ltd – The E Studio – Trevor Derby Associates – Wain Morehead Architects Ltd – Yeoman Ltd

CONSULTANTS, RECRUITMENT Co9050 – ARV Solutions

CONSULTANTS, TECHNICAL: TIMBER

Co9200 – A T K Partnership Ltd – ADEPT Consulting (UK) Ltd – AED – Allen Gordon LLP – Andrew Baxter Ltd – Andrew Waring Associates Ltd – Archibald Shaw LLP – Ardern Hodges Ltd – Austin Trueman Associates – Barter Hill Partnership Ltd – Betts Associates Ltd – BM TRADA – Brian Evans Associates Ltd – British Woodworking Federation – BTS Timber Engineering Ltd – Cameron & Ross – Crucis Designs Ltd – David R Murray & Associates – Davidson Timber UK Ltd – Design ID Consulting Ltd – DHD Structures Ltd – D-Tech Design Ltd – Duffy Chartered Engineers IRL – E & M West – Edinburgh Napier University – Edward Parsley Associates – Ergodomus Timber Engineering – EURBAN – Evolve – FLUID Structural Engineers – Forbes Leslie Network – Forest Hill Design – Francis Bradshaw Partnership – Furness Partnership Ltd – G C Robertson & Associates Ltd – Goodson Associates – Greenbeams.com, Structural & Civil Consultants – Greenfields Design Ltd – Hartigan – HGA (UK) Ltd – HM Chambers and Partners – Holbrook Design Ltd – Kirkwood Structures Timber 2020 Industry Yearbook

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TRADA Buyers’ guide

– KLH UK – Knevitt Consulting – McCartney Associates – McColl Associates – Mercers Timber Frame Consultancy – Milner Associates – Momentum Consulting Engineers – Myriad Construction Ltd – P Thomas Associates Ltd – Paramount Structural Engineers Ltd – Pavlovskis Lister Ltd – PPK Timber Designs Ltd – R P Winstone Ltd – Ramboll – Roger Casey Associates Ltd – Rushmoor Engineering Services – S C E G Ltd – Sanders Consulting – Scott White and Hookins LLP – Shadbolt Consulting Ltd – Silvatec Design Ltd – Solid Structures (UK) Ltd – Spencer Jones Design Ltd – Straight Up Timber Frame Ltd – Struct-SURE & Building Design – Structural Solutions – Structural Timber Design Services Ltd – T W P Consulting Structural & Civil Engineers – TALL Engineers Ltd – Technical & Graphic Design Services Ltd – The Morton Partnership Ltd – Tim Kelly Consulting Engineers – Timber Cladding Consultants – Timber Decking & Cladding Association – Timber Design Services – TRP Consulting Ltd – Venturer Pte Ltd – Wood Shop Ltd, The – ZUBLIN Timber GmbH

CONSULTANTS, TIMBER ENGINEERING Co9100 – A T K Partnership Ltd – ADEPT Consulting (UK) Ltd – AED – Allen Gordon LLP – Andrew Firebrace Partnership – Andrew Waring Associates Ltd – Apex Timber Frames Ltd – ARC Engineers Ltd – Archibald Shaw LLP – Ardern Hodges Ltd – Austin Trueman Associates – Barry Honeysett Consulting Structural & Civil Engineers – Barter Hill Partnership Ltd – Benfield ATT Group Ltd – Brian Evans Associates Ltd – Broughton Beatty Wearring Ltd – BTS Timber Engineering Ltd – Buro Happold Ltd – Cameron & Ross – Campbell Reith Hill LLP – Canham Consulting – Civil & Structural Partnership Ltd – Clifton Structural Timber Ltd – Complete Design Partnership Ltd – Cook Associates – Cowan Consultancy Ltd – Croft Structural Engineers – Crucis Designs Ltd – D A Ryland Structural Engineer – David Narro Associates – David R Murray & Associates – Deeside Timberframe Ltd – Design ID Consulting Ltd – DHD Structures Ltd – Duffy Chartered Engineers IRL – E & M West – E A R Sheppard Consulting Civil & Structural Engineers Ltd

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– Edinburgh Napier University – Edward Parsley Associates – Elliott & Company – Engenuiti Ltd – engineersHRW – EURBAN – Evolve – FAIRHURST – FLUID Structural Engineers – Forbes Leslie Network – Forest Hill Design – Francis Bradshaw Partnership – FRILO Software GmbH – Furness Partnership Ltd – G C Robertson & Associates Ltd – GMIT – Goodson Associates – Green Oak Carpentry Company Ltd, The – Greenbeams.com, Structural & Civil Consultants – Hartigan – Harvey and Snowdon – Hermolle Associates Ltd – Heyne Tillett Steel Ltd – HGA (UK) Ltd – Hockley & Dawson – Holbrook Design Ltd – Hydrock Consultants – Inwood Engineering Ltd – James Lockyer Associates Ltd – Jenkins & Potter Ltd – Joseph Griggs & Co Ltd – Keniry Furniture/Construction – Kingfisher Consulting – Kirkwood Structures – KLH UK – Knevitt Consulting – M L Kubik & Son Ltd – Machined Timber Specialists – Maciver Consultancy Services Ltd – MacLeod & Jordan Consulting Engineers Ltd – Mason Clark Associates – Maughan Reynolds Partnership – McCartney Associates – Michael Barclay Partnership LLP – Michael Hadi Associates – Milner Associates – Modulus – Momentum Consulting Engineers – Morrish & Partners – Nick Kenchington Ltd – Norder Design Associates – Oregon Timber Frame Ltd – Paramount Structural Engineers Ltd – Parkins, R G & Partners Ltd – Pavlovskis Lister Ltd – Pittilla Bell Consulting Ltd – Pollard Architectural – PPK Timber Designs Ltd – Pringuer-James – Ramboll – Ramsay and Chalmers – Rawcliffe Associates Ltd – Robert Stone Associates – Roger Casey Associates Ltd – Rushmoor Engineering Services – S C E G Ltd – Sanders Consulting – Sandy Fraser Associates – Scotframe Timber Engineering Ltd – Self-Build-Pro (Chartered Surveyors) – Sevenoaks Modular Ltd – Silvatec Design Ltd – simplydesignsolutions – Sinclair Johnston & Partners Ltd – Solid Structures (UK) Ltd – Spencer Jones Design Ltd – Stirling Maynard – Straight Up Timber Frame Ltd – Structa LLP – Struct-SURE & Building Design

– Structural Design Associates Ltd – Structural Solutions – StructureMode Ltd – T F S Design Ltd – T W P Consulting Structural & Civil Engineers – TALL Engineers Ltd – The Morton Partnership Ltd – Tim Kelly Consulting Engineers – Timber Design Services – Tottenham & Bennett – Trevor Derby Associates – Venturer Pte Ltd – W F Brown Associates Ltd – Wedeman Consulting Ltd – Westructure Timber Frame Ltd – WSP Group – Wyatt & Watts – ZUBLIN Timber GmbH

CONTRACT MANAGEMENT

Co9300 – Acanthus Clews Architects – C & C Markides Estates Ltd – Clarke Matthews Ltd – Mackellar Schwerdt Architects LLP – Maxwell & Company Architects and Designers Ltd – Torlock Ltd – W M Design & Architecture Ltd – Yeoman Ltd

CROSS-LAMINATED TIMBER MANUFACTURERS Cl1000 – EURBAN – Stora Enso UK Ltd

DECKING

De2000 – Abbey Woods – Alsford Timber – Beaumont Forest Products Ltd – Brooks Bros (UK) Ltd – Burton, E O & Co Ltd – Champion, A W Ltd – CTS Bridges Ltd – English Woodlands Timber Ltd – Exterior Decking – Fulham Timber Merchants Ltd – Garden Trellis Co Ltd, The – Gripdeck – Gripsure UK Ltd – Hoppings Softwood Products PLC – International Timber – James Latham PLC – kritikoswood – Millworks Timber Specialists – Morgan Timber – NHG Timber Ltd – Nicks & Co (Timber) Ltd – Norman Ltd – Pacific European Timber Agency Ltd – PiveteauBois – Rotho Blaas SRL – Silva Timber Products Ltd – Stourhead (Western) Estate – Timber Focus – Timber Marketing Services T/A Wood Concepts – Vincent Timber Ltd – Woodtrend Ltd

DOOR BLANKS

Do1000 – Caledonian Plywood Company – JB Kind Ltd – JP Stone Ltd – Tek Fire Door Services

www.trada.co.uk

TRADA Buyers’ guide

DOOR DISTRIBUTORS & IMPORTERS

Do2000 – Alsford Timber – Brooks Bros (UK) Ltd – Enfield Speciality Doors – Finewood Marketing (UK) Ltd – James Latham PLC – JB Kind Ltd – Timber Marketing Services T/A Wood Concepts

DOOR MANUFACTURERS

Do2500 – Adams Joinery Ltd – Biker Group – Caledonian Plywood Company – Dempsey Dyer Ltd – Enfield Speciality Doors – ERW Joinery Ltd – Fyntons Ltd – Harrison Varma Ltd – Havelock ONE – Hazlin – JCK Joinery – JP Stone Ltd – Kent Flush Doors & Joinery Ltd – kritikoswood – Mark Horton t/a Liberty Fire & Vision – Marshall Specialist Joinery Ltd – MFM Joinery Ltd – NBJ (London) Ltd – Norscot Joinery Ltd – Patchett Joinery Ltd – RB Doors & Joinery Ltd – Scotts of Thrapston Ltd – Stafford Bridge Doors Ltd – T Manners & Sons Ltd – Tower Doors Ltd

– ERW Joinery Ltd – Harrison Varma Ltd – Hazlin – JB Kind Ltd – JCK Joinery – Kent Flush Doors & Joinery Ltd – Paling Joiners – Stafford Bridge Doors Ltd – Taylor Made Joinery Interiors Ltd – Tower Doors Ltd – Vicaima Doors

EDUCATIONAL ESTABLISHMENT

Do3000 – Champion, A W Ltd – Days Buildbase – Enfield Speciality Doors – JB Kind Ltd – Watford Timber Co Ltd

Ed4000 – Anglia Ruskin University – Arts University Bournemouth – Bartlett School of Architecture – Burwell Deakins Architects – Cardiff University – Coleg Menai – Edinburgh College – Edinburgh Napier University – Forth Valley College – Furness College – GMIT – Inverness College – Leeds Beckett University – Leicester School of Architecture – Limerick Institute of Technology – Middlesex University – Newcastle University – Northumbria University Library – NPTC Group of Colleges – Royal School of Military Engineering – School of Architecture, University of Reading – School of Civil Engineering and Surveying, University of Portsmouth – School of Creative Arts – School of Energy, Construction and Environment, Coventry University – Shrewsbury College - Construction – University of Birmingham - Department of Civil Engineering – University Of Cambridge – University of Manchester – University of Westminster – Wyatt Carruthers Jebb

DOOR SEALS

ENERGY EFFICIENCY PRODUCTS & SERVICES

DOOR MERCHANTS

Do4000 – Sealmaster Ltd – Tek Fire Door Services

DOORS, FIRE RESISTING

Do4500 – Caledonian Plywood Company – Enfield Speciality Doors – Envirograf – Hazlin – JB Kind Ltd – JCK Joinery – Kent Flush Doors & Joinery Ltd – NBJ (London) Ltd – Paling Joiners – RB Doors & Joinery Ltd – Stafford Bridge Doors Ltd – Tek Fire Door Services – Tower Doors Ltd – Vascroft Contractors Ltd – Vicaima Doors

DOORS, NON-STANDARD Do5000 – Biker Group – Brodies Timber – Days Buildbase – Enfield Speciality Doors

www.trada.co.uk

En1000 – Beaumont Forest Products Ltd – Haydn E Williams Cyf. Chartered Surveyors – JML Contracts Ltd – Julian Owen Associates Architects – Self-Build-Pro (Chartered Surveyors) – Wain Morehead Architects Ltd

ENGINEERING SERVICES, MECHANICAL En1500 – David R Murray & Associates – Forbes Leslie Network – NPS South West Ltd – Ramboll – RPS – Waterman Structures – WSP Group

ENGINEERS, CIVIL & STRUCTURAL En2000 – A L Project Services – A T K Partnership Ltd – A Winterbotham Ltd – Absolute Consulting Engineers Ltd – Adam Power Associates – ADEPT Consulting (UK) Ltd – AED – Aidan O'Connell & Associates Ltd

– AJR Design Solutions Ltd – AKT II – Alan Baxter Partnership – Alcock Lees – Allen Gordon LLP – Andrew Baxter Ltd – Andrew Firebrace Partnership – Andrew Howard & Partners – Andrew Waring Associates Ltd – Andrews Associates – Anthony Davies Associates Ltd – Anthony Fisher Associates – ARC Engineers Ltd – Archibald Shaw LLP – Arthur Architects – Arup – Ashley Largent Associates Ltd – Atkins – Austin Trueman Associates – Avie Consulting Ltd – B G Consulting Ltd – Bailey Johnson Hayes – Barry Honeysett Consulting Structural & Civil Engineers – Barter Hill Partnership Ltd – Baynham Meikle Partnership – BdR Civil & Structural Engineering Ltd – Betts Associates Ltd – Bingham Yates Ltd – Black Associates Structural Engineering Consultants Ltd – Blackett-Ord Conservation Ltd – Blackwell Structural Consultants Ltd – Boyle Consultants Ltd – Brian Evans Associates Ltd – Brian J Stocker – Broughton Beatty Wearring Ltd – BTS Timber Engineering Ltd – Buro Happold Ltd – Burwell Deakins Architects – BWB Consulting Ltd – C & C Markides Estates Ltd – C W T Partnership – C2 Designs – Cameron & Ross – Campbell of Doune Ltd – Campbell Reith Hill LLP – Canham Consulting – Centrespace design LLP – Civil & Structural Engineering Services – Civil & Structural Partnership Ltd – Civil and Structural Engineering Shetland Ltd – Clarke Matthews Ltd – Clifton Structural Timber Ltd – CMQ Consulting Engineers – Complete Design Partnership Ltd – Conisbee – Cook Associates – Corbett & Tasker Ltd – Cowan Consultancy Ltd – Croft Structural Engineers – Crucis Designs Ltd – Curryhills Civil Engineering Ltd – D A Ryland Structural Engineer – DAS Structures Ltd – David Narro Associates – David R Murray & Associates – Design Engineering Workshop – Design ID Consulting Ltd – Design-Life – DHD Structures Ltd – Diamond Wood & Shaw Ltd – Dixon Hurst Ltd – DMC Consulting Engineers Ltd – DOA Consulting Structural Engineers – Donald McIntyre Design Ltd – Dougall Baillie Associates – Duffy Chartered Engineers IRL – E & M West – E A R Sheppard Consulting Civil & Structural Engineers Ltd – Edinburgh Napier University – Edward Parsley Associates Timber 2020 Industry Yearbook

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– Egoin UK Timber Construction – Eldred Geotechnics Ltd – Elliott & Company – Elliott Wood Partnership Ltd – Ellis and Moore Consulting Engineers – Engenuiti Ltd – engineersHRW – Entrust Support Services Ltd – Ergodomus Timber Engineering – Eric Wright Group – Etive Consulting Engineers Ltd – Evolve – Expedition Engineering – FAIRHURST – Fidler Associates Ltd – FLUID Structural Engineers – Forbes Leslie Network – Format Engineers Ltd – Francis Bradshaw Partnership – FRILO Software GmbH – FTF Designs LTD – Furness Partnership Ltd – G A P Ltd – G C Robertson & Associates Ltd – Glass Light and Special Structures – Goodson Associates – Graham Garner and Partners Ltd – Green Arc Design – Griffen Design Ltd – H B L Associates – Harper, A J – Harry Turnbull Ltd, Consulting Civil Engineer – Hartigan – Harvey and Snowdon – Hermolle Associates Ltd – Heyne Tillett Steel Ltd – HGA (UK) Ltd – HM Chambers and Partners – Hockley & Dawson – Hydrock Consultants – Integral Engineering Design – Inwood Engineering Ltd – J K C Timber Engineering – James Lockyer Associates Ltd – JC Consultancy Ltd – JCP Engineers – Jenkins & Potter Ltd – JHA Consulting – Jon J Oates – Kavanagh Forensics Ltd – Keith Warren Consultants Ltd – Kelsham Ltd – Kingfisher Consulting – Kirkwood Structures – Knevitt Consulting – Lawrenson Associates – Len Smith Consulting Ltd – LFS Engineering Ltd – Libra Design & Consultancy Ltd – M L Kubik & Son Ltd – Maciver Consultancy Services Ltd – MacLeod & Jordan Consulting Engineers Ltd – Marshall, William J & Partners – Martin Perry Associates – Mason Clark Associates – Maughan Reynolds Partnership – McCarthy, Rachel BSc MICE – McCartney Associates – McColl Associates – McColm Civil & Structural Engineers Ltd – McKenzie Willis – Michael Baigent Orla Kelly Ltd – Michael Barclay Partnership LLP – Michael Hadi Associates – Mike Parkes Associates – ML Consulting – MLTS Ltd – Modulus – Momentum Consulting Engineers – Morrish & Partners

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– MSM Consulting Engineers – Nick Kenchington Ltd – Norder Design Associates – O'Dwyer, Nicholas Ltd – ONCE Civil & Structural Ltd – Optimal Structural Engineers Ltd – O'Reilly Design Ltd – P J Lewis Ltd – P M Law Design – Paramount Structural Engineers Ltd – Parkins, R G & Partners Ltd – Pavlovskis Lister Ltd – Perega – Peter Brett Associates LLP – Peter Dann Ltd – Peter Tyers Associates – Pittilla Bell Consulting Ltd – Plandescil Ltd – Portland Consulting Engineers – Price & Myers – Prime Meridian – Pringuer-James – QED Structures Ltd – Quadrant Harmon Consulting Ltd – Ramage Young Design Ltd – Ramboll – Ramsay and Chalmers – Rawcliffe Associates Ltd – RNLI – Robert Bird Group – Robert E Fry & Associates Ltd – Robert Stone Associates – Robert Wynter & Partners Ltd – Rodrigues Associates – Roger Casey Associates Ltd – Rossi Long Consulting – RPS – Rushmoor Engineering Services – RWA Consulting Engineers – RWO Associates – S C E G Ltd – Sanders Consulting – Sandy Fraser Associates – Scotframe Timber Engineering Ltd – Scott White and Hookins LLP – SDP Consulting Engineers – Simpson Associates Consulting Engineers LLP – Sinclair Johnston & Partners Ltd – Sir Robert McAlpine Ltd – Smith and Wallwork Ltd – Smith Foster Ltd – Solid Structures (UK) Ltd – SOLUTION Consulting Engineers Ltd – Star Design Solutions Ltd – Steve Gilman Design Ltd – Stirling Maynard – Stora Enso UK Ltd – Structa LLP – Struct-SURE & Building Design – Structural Design Associates Ltd – Structural Design Services – Structural Solutions – StructureMode Ltd – Struktura – Summerfield, F – Super Structures Associates Ltd – T W P Consulting Structural & Civil Engineers – T&G Ltd – TALL Engineers Ltd – Terence Fidler Partnership Ltd – Tim Kelly Consulting Engineers – Timber Design Services – Tottenham & Bennett – Trevor Derby Associates – TRP Consulting Ltd – True Consulting Engineers – TZG Partnership Ltd – Varndell Engineering Ltd – vkhp-consulting – W F Brown Associates Ltd

– Waterman Structures – Wedeman Consulting Ltd – WSP Group – Wyatt & Watts – Wyatt Carruthers Jebb – YES Engineering Group Ltd – Young Consulting Engineers

ENVIRONMENTAL ASSESSMENT En3000 – Buro Happold Ltd – Campbell Reith Hill LLP – FAIRHURST – Perega – Peter Brett Associates LLP – Scott White and Hookins LLP – Stride Treglown Ltd

ENVIRONMENTAL CAMPAIGNERS En4000 – PEFC UK Ltd

ENVIRONMENTAL CERTIFICATION SERVICES En5000 – Hutton & Rostron Environmental Investigations Ltd – PEFC UK Ltd – Sustainable Construction Solutions Ltd – Wood Shop Ltd, The

FASTENINGS & FIXINGS FOR TIMBER Fa1000 – Chadwicks (Mowbray Drive) Ltd – Rotafix (Northern) Ltd – Rotho Blaas SRL – SHERPA Connection Systems – Simpson Strong-Tie

FENCING MANUFACTURERS Fe2000 – Calders & Grandidge – Garden Trellis Co Ltd, The – PiveteauBois

FENCING MATERIAL SUPPLIERS Fe3000 – Beaumont Forest Products Ltd – Calders & Grandidge – Canvey Wharf Co Ltd, The – Hoppings Softwood Products PLC – Townsend Timber

FIBRE BUILDING BOARD, MANUFACTURERS Fi2000 – MEDITE SMARTPLY – Steico UK Ltd

FIBRE BUILDING BOARD, MERCHANTS Fi4000 – Brooks Bros (UK) Ltd

FINISHING EQUIPMENT Fi6000 – Teknos GBI

FIRE DETECTION & PREVENTION EQUIPMENT Fi7000 – Fabric Flare Solutions Ltd

www.trada.co.uk

TRADA Buyers’ guide

FLAME RETARD IMPREGNATION SERVICES Fl1000 – Fabric Flare Solutions Ltd – Koppers – Timber Focus – Wood Protection Association

FLOOR SEALANTS Fl2500 – Bona Ltd

FLOORING, HARDWOOD: AGENTS & IMPORTERS Fl3000 – Domus – International Timber – Pacific European Timber Agency Ltd – Timber Marketing Services T/A Wood Concepts

FLOORING, HARDWOOD: MANUFACTURERS Fl3500 – Brooks Bros (UK) Ltd – E C Forest Products (Sales) – kritikoswood – Siero Lam SA – Vastern Timber – W. L. West & Sons Ltd – Whitney Sawmills

FLOORING, HARDWOOD: MERCHANTS & SUPPLIERS Fl4000 – A C Timber Solutions Ltd – Beaumont Forest Products Ltd – Burton, E O & Co Ltd – Castle Wood Floors – Champion, A W Ltd – Chauncey's Floor Fitting Services – Chaunceys Timber Flooring – Domus – E C Forest Products (Sales) – Fulham Timber Merchants Ltd – International Decorative Surfaces – James Latham PLC – Thorogood Timber Ltd – Timbmet – Woodtrend Ltd

FLOORING, LAMINATE: MERCHANTS & SUPPLIERS Fl5000 – Castle Wood Floors – International Decorative Surfaces

FLOORING, SOFTWOOD: AGENTS & SUPPLIERS Fl6300 – Chauncey's Floor Fitting Services – Timber Focus

FLOORING, SOFTWOOD: MERCHANTS & SUPPLIERS Fl7000 – Beaumont Forest Products Ltd – Envirograf

FURNITURE DESIGNERS

Fu3000 – Andrew Page Oak – Campbell Jackson Architects – Design ID Consulting Ltd – GMIT – IAF Design – Jennifer Newman – Keniry Furniture/Construction – Langley Design – Mime Architects Ltd

www.trada.co.uk

– Oxford Oak – Redwood Design Ltd – Shawn Winn, Draughtsman

FURNITURE MANUFACTURERS Fu4000 – Brodies Timber – Chase Joinery Contracts Ltd – Harrison Varma Ltd – Havelock ONE – Houghtons of York – JDM Joinery Ltd – Jennifer Newman – JP Stone Ltd – NBJ (London) Ltd – Oxford Oak – Redwood Design Ltd – Setsquare Staging Ltd – T Manners & Sons Ltd

GARDEN FURNITURE MANUFACTURERS & SUPPLIERS Ga3000 – Oxford Oak – Street Design Ltd – WoodBlocX Ltd

GATES

Ga4000 – Calders & Grandidge – Garden Trellis Co Ltd, The – Geo. Oliver & Son – W. L. West & Sons Ltd

GLUED LAMINATED TIMBER (GLULAM) MANUFACTURERS Gl1000 – Arbonis – Constructional Timber (Manufacturers) Ltd – Cygnum Ltd – E. y F. Gamiz – Egoin UK Timber Construction – G-frame Structures – Inwood Developments Ltd – Lowe & Simpson Ltd – Melingoed Ltd – PiveteauBois – Siero Lam SA – Simonin – Steico UK Ltd

GLUED LAMINATED TIMBER (GLULAM) MERCHANTS & SUPPLIERS Gl2000 – A J Laminated Beams Ltd – B & K Structures – Charnwood Timber Frame – Constructional Timber (Manufacturers) Ltd – Cowley Timber & Partners Ltd – EURBAN – Frame UK – OFP Timber Framed Homes Ltd – Perkins & Perry Ltd – Simpson Strong-Tie – Steve Coleman (Timber Erectors) Ltd – Thomas Armstrong (Timber) Ltd – Wiehag Timber Construction

GOVERNMENT DEPARTMENTS

Go2000 – Department of Agriculture, Marine and Food – Ghana Forestry Commission – Renfrewshire Council

HANDLES, WOOD

Ha2000 – Brooks Bros (UK) Ltd – International Timber

HARDWOOD, ENVIRONMENTALLY CERTIFIED Ha7000 – A C Timber Solutions Ltd – Border Hardwood Ltd – Brooks Bros (UK) Ltd – Exterior Decking – Finewood Marketing (UK) Ltd – Fulham Timber Merchants Ltd – International Timber – iWood Timber Ltd – Morgan Timber – NHG Timber Ltd – Pacific European Timber Agency Ltd – Ramsay Timber Ltd – Stourhead (Western) Estate – Timberdeal Ltd – Vincent Timber Ltd – Whitney Sawmills – Woodtrend Ltd

HERITAGE & CONSERVATION SERVICES

He1000 – Acanthus Clews Architects – Anthony Swaine Architecture – Arthur Architects – Barry Honeysett Consulting Structural & Civil Engineers – Campbell Jackson Architects – David Parker Architects Ltd – DHD Structures Ltd – Ellis and Moore Consulting Engineers – Greenbeams.com, Structural & Civil Consultants – Houghtons of York – Len Smith Consulting Ltd – Maxwell & Company Architects and Designers Ltd – Mime Architects Ltd – Shawn Winn, Draughtsman – Structural Design Associates Ltd – Stuart Page Architect

HOUSE BUILDERS

Ho3000 – Advanced Housing Systems Ltd – Andrew Davie Timber Frame Homes – Bespoke Timber Frames – Border Oak Design & Construction – Eden Timber Frame – English Heritage Buildings LLP – JML Contracts Ltd – Kind & Co (Builders) Ltd – M & K MacLeod – Martin Robinson Carpentry Ltd – Mercers Timber Frame Consultancy – Myriad Construction Ltd – Paramount Timber Frame Ltd – Pennine Timber Frame (UK) Ltd – SHERPA Connection Systems – STREIF – T F S Design Ltd – T J Crump Oakwrights Ltd – Timbertek Ltd – Timberworks Europe – Urban Marque – W M Design & Architecture Ltd – Wales Timber Solutions – Walker Brothers (Timber Frames) Ltd – Westwind Oak Buildings Ltd – Wooden House

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HOUSING ASSOCIATION

Ho4000 – MAST Architects – Property Maintenance Services Directorate – Timberworks Europe

INSURANCE AGENTS & BROKERS In2000 – BLP Insurance – LABC Warranty – Premier Guarantee

INTERNET SERVICES In3000 – Ten-25 Software – Wood Shop Ltd, The

JOINERS

Jo1000 – Adams Joinery Ltd – Brown & Carroll (London) Ltd – Calanpoint Contracts Ltd – Geo. Oliver & Son – Walker Brothers (Timber Frames) Ltd

JOINERY IMPORTERS

Jo3000 – Price & Pierce Forest Products Ltd – Stora Enso UK Ltd

JOINERY MANUFACTURERS

Jo4000 – A & C Joinery – Adams Joinery Ltd – Altham Oak Bespoke Structures – Angus and Mack Ltd – Biker Group – Binladin Woodwork Factory Co. Ltd – Brown & Carroll (London) Ltd – Calanpoint Contracts Ltd – Chase Joinery Contracts Ltd – DTS - Kreunen Plastic Solutions – E. E. Smith Contracts Ltd – Earthy Timber – ERW Joinery Ltd – Fyntons Ltd – GEM Joinery – Haldane (UK) Ltd – Harrison Varma Ltd – Hazlin – Havelock ONE – JCK Joinery – JDM Joinery Ltd – Jet Joinery Supplies Ltd – JJ Interiors (Southwest) Ltd – JP Stone Ltd – Kenneth Rayson & Sons Ltd – Kent Flush Doors & Joinery Ltd – Marshall Specialist Joinery Ltd – Melingoed Ltd – MFM Joinery Ltd – NBJ (London) Ltd – Norscot Joinery Ltd – Nottage Joinery & Timber Merchants – Oakleaf Bespoke Joinery Services – Original Box Sash Windows Company, The – Paling Joiners – RB Doors & Joinery Ltd – Scotts of Thrapston Ltd – Sevenoaks Modular Ltd – Somerville (NI) Ltd – Sturrocks Joinery – T Manners & Sons Ltd – Taylor Made Joinery Interiors Ltd

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– Townsend Timber – Vascroft Contractors Ltd – Vicaima Doors

JOINERY MERCHANTS & DISTRIBUTORS Jo2000 – Arnold Laver – Bell & Sime Buildbase – Buildbase Ltd – Canvey Wharf Co Ltd, The – Chadwicks (Mowbray Drive) Ltd – Fleming Buildbase – Fleming Buildbase - Doors & Windows – Gibbs & Dandy – Hay & Co Buildbase – Moreys

JOINERY, ARCHITECTURAL

Jo5000 – Adams Joinery Ltd – Binladin Woodwork Factory Co. Ltd – Garden Trellis Co Ltd, The – Haldane (UK) Ltd – Harrison Varma Ltd – Houghtons of York – JDM Joinery Ltd – Paling Joiners – Redwood Design Ltd – Shawn Winn, Draughtsman – Taylor Made Joinery Interiors Ltd – Vale Garden Houses Ltd – Vascroft Contractors Ltd

KITCHEN WORKTOPS

Ki3000 – Brooks Bros (UK) Ltd – Earthy Timber – International Decorative Surfaces – James Latham PLC – Quinn Hardwoods Ltd – Redwood Design Ltd – Timberdeal Ltd

LACQUER MANUFACTURERS & SUPPLIERS La1000 – AkzoNobel Industrial Coatings Ltd/Sikkens Joinery – Bona Ltd – Teknos GBI

LAMINATED VENEER LUMBER (LVL) Lv1000 – B & K Structures – Constructional Timber (Manufacturers) Ltd – Cygnum Ltd – Kirkwood Structures – Steico UK Ltd – Wiehag Timber Construction

LAMINATES, WORKTOP

La4000 – Arnold Laver – International Decorative Surfaces – James Latham PLC – Panelco Ltd

LAMINATING SERVICES, PANEL PRODUCTS La6000 – Brooks Bros (UK) Ltd – JP Stone Ltd – Ramsay Timber Ltd – RB Doors & Joinery Ltd

LANDSCAPE ARCHITECTURAL SUPPLIES La7000 – Benchmark Timber Ltd – Garden Trellis Co Ltd, The – Oxford Oak – WoodBlocX Ltd

LANDSCAPE DESIGNERS

La9000 – Design Engine Architects Ltd – Exterior Decking – Halsall Lloyd LLP – HLM Architects – Lacey Hickie Caley Ltd – NPS South West Ltd – PRP – RPS – Stride Treglown Ltd – Townshend Landscape Architects Ltd

LOCAL AUTHORITY DEPARTMENTS Lo1000 – Architectural & Construction Services – Coed Cymru – Entrust Support Services Ltd – Fife Council – Hampshire County Council – Renfrewshire Council

LOUVRES, EXTERNAL Lo2000 – Stafford Bridge Doors Ltd

MACHINERY MANUFACTURERS & SUPPLIERS Ma1500 – Bona Ltd – Rotho Blaas SRL

MACHINING SERVICES

Ma2500 – Brodies Timber – Burton, E O & Co Ltd – E C Forest Products (Sales) – Fleming Buildbase – International Timber – iWood Timber Ltd – MFM Joinery Ltd – Millworks Timber Specialists – Ramsay Timber Ltd – Timbmet

MDF, AGENTS & IMPORTERS

Md1000 – Hanson Plywood Ltd – International Plywood (Importers) Ltd

MDF, MANUFACTURERS

Md2000 – MEDITE SMARTPLY – Norbord – Wood Panel Industries Federation

MDF, SUPPLIERS & MERCHANTS Md3000 – Alsford Timber – Altripan UK Ltd – Beaumont Forest Products Ltd – Brooks Bros (UK) Ltd – Caledonian Plywood Company – Champion, A W Ltd – Hoppings Softwood Products PLC – International Decorative Surfaces

www.trada.co.uk

TRADA Buyers’ guide

– James Latham PLC – Meyer Timber Ltd – Premium Timber Products Ltd – Watford Timber Co Ltd

ORIENTED STRAND BOARD, AGENTS & IMPORTERS

MODIFIED WOOD, MANUFACTURERS & SUPPLIERS

PACKING CASE & BOX MANUFACTURERS & SUPPLIERS

Mo0500 – Abbey Woods – Accoya by Accsys Technologies – Brooks Bros (UK) Ltd – Champion, A W Ltd – Coed Cymru – James Latham PLC – Lucite International UK Ltd – Vincent Timber Ltd

MOULDINGS, HARDWOOD: MANUFACTURERS & SUPPLIERS Mo4500 – A C Timber Solutions Ltd – Aitken & Howard Ltd – Beaumont Forest Products Ltd – Burton, E O & Co Ltd – Champion, A W Ltd – Finewood Marketing (UK) Ltd – Gilmour & Aitken – International Timber – Millworks Timber Specialists – Morgan Timber – NHG Timber Ltd – Nicks & Co (Timber) Ltd – Nottage Joinery & Timber Merchants – Pacific European Timber Agency Ltd – Thorogood Timber Ltd – Timbmet – Watford Timber Co Ltd

MOULDINGS, SOFTWOOD: MANUFACTURERS & SUPPLIERS Mo5000 – Beaumont Forest Products Ltd – Bolt Building Supplies Ltd – Brooks Bros (UK) Ltd – Champion, A W Ltd – Hoppings Softwood Products PLC – International Timber – Mid-Sussex Timber Co Ltd – Millworks Timber Specialists – Nicks & Co (Timber) Ltd – Watford Timber Co Ltd

OAK TRUSSES

Oa1000 – A J Laminated Beams Ltd – Green Oak Carpentry Company Ltd, The – Oak Frames Direct – Simonin – T J Crump Oakwrights Ltd – Townsend Timber – Turner Timber Frames Ltd – Westwind Oak Buildings Ltd

ORIENTED STRAND BOARD MANUFACTURERS Or2000 – Norbord – Wood Panel Industries Federation

ORIENTED STRAND BOARD MERCHANTS Or3000 – Altripan UK Ltd

www.trada.co.uk

Or1000 – Hanson Plywood Ltd – International Plywood (Importers) Ltd

Pa1000 – Crocodile Timber Frames – Thomas Armstrong (Timber) Ltd

PAINTS Pa3000 – AkzoNobel Industrial Coatings Ltd/Sikkens Joinery – Holman Specialist Paints Ltd – Rawlins Paints – Teknos GBI PAINTS, FLAME RETARDANT Pa4000 – Fabric Flare Solutions Ltd – Holman Specialist Paints Ltd – Rawlins Paints – Sealmaster Ltd

PALLET MANUFACTURERS & SUPPLIERS Pa5700 – MEDITE SMARTPLY – Thomas Armstrong (Timber) Ltd

PANEL CUTTING SERVICES Pa6200 – Meyer Timber Ltd – Panelco Ltd – Premium Timber Products Ltd

PANEL PRODUCTS AGENTS & IMPORTERS Pa7000 – Altripan UK Ltd – Arnold Laver – Caledonian Plywood Company – Hanson Plywood Ltd – International Plywood (Importers) Ltd – James Latham PLC – Timberworks Europe

PANEL PRODUCTS MANUFACTURERS Pa7200 – Arnold Laver – BCL Timber Projects Ltd – Gripdeck – Ikopluseco – kritikoswood – MEDITE SMARTPLY – Norbord – Siero Lam SA – Wood Panel Industries Federation

PANEL PRODUCTS MERCHANTS & SUPPLIERS Pa7500 – Advanced Technical Panels – Alsford Timber – Altripan UK Ltd – Arnold Laver – Beaumont Forest Products Ltd – Buildbase Ltd – Caledonian Plywood Company – Chadwicks (Mowbray Drive) Ltd – Fulham Timber Merchants Ltd – Gibbs & Dandy – James Latham PLC – Melingoed Ltd

– Meyer Timber Ltd – Mid-Sussex Timber Co Ltd – Panelco Ltd – Premium Timber Products Ltd – Timbmet – Watford Timber Co Ltd

PANELS, EDGE GLUED Pa7700 – E. y F. Gamiz – Timberdeal Ltd

PANELS, FLAME RETARDANT Pa8000 – Envirograf – MEDITE SMARTPLY – Price & Pierce Forest Products Ltd – Sealmaster Ltd

PANELS, LAMINATED

Pa8200 – Advanced Technical Panels – E. y F. Gamiz – Egoin UK Timber Construction – Norbord – Wiehag Timber Construction

PANELS, PLASTIC & MELAMINE FACED Pa8500 – Advanced Technical Panels – Panelco Ltd

PANELS, VENEERED

Pa8700 – BCL Timber Projects Ltd – Hazlin – Norbord – RB Doors & Joinery Ltd – Vicaima Doors

PARTICLEBOARD AGENTS & IMPORTERS Pa8800 – Hanson Plywood Ltd – Steico UK Ltd

PARTICLEBOARD MANUFACTURERS Pa9300 – Norbord – Wood Panel Industries Federation

PLAYGROUND EQUIPMENT MANUFACTURERS & SUPPLIERS Pg1000 – Playdale Playgrounds – Street Design Ltd

PLYWOOD & BLOCKBOARD AGENTS & IMPORTERS Pl1000 – Advanced Technical Panels – Altripan UK Ltd – Arnold Laver – Caledonian Plywood Company – Ghana Forestry Commission – Hanson Plywood Ltd – International Plywood (Importers) Ltd – Meyer Timber Ltd – Timber Marketing Services T/A Wood Concepts

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PLYWOOD & BLOCKBOARD, DECORATIVE Pl2000 – International Plywood (Importers) Ltd

PLYWOOD & BLOCKBOARD, FLAME RETARDANT Pl3000 – Arnold Laver – Lonza Wood Protection – Meyer Timber Ltd – Premium Timber Products Ltd

POLE SUPPLIERS

Po1000 – Calders & Grandidge

PRESERVATION & TREATMENT SERVICES Pr1000 – Calders & Grandidge – Canvey Wharf Co Ltd, The – Gibbs & Dandy – Harlow Bros Ltd – International Timber – Koppers – Lonza Wood Protection – Mid-Sussex Timber Co Ltd – Wood Protection Association

ROOFING MATERIAL SUPPLIERS Ro2000 – Canvey Wharf Co Ltd, The – DuPont (UK) Ltd – Pasquill – Rotho Blaas SRL – S R Timber – Silva Timber Products Ltd – Vida Wood UK Ltd

SAWMILLS, BRITISH TIMBER Sa6000 – Earthy Timber – G & S Specialist Timber – Vastern Timber – Whitney Sawmills

SAWMILLS, GENERAL Sa6500 – Moreys – Pasquill – Stora Enso UK Ltd

SAWMILLS, HARDWOOD

Ra2000 – WoodBlocX Ltd

Sa7000 – Aitken & Howard Ltd – Border Hardwood Ltd – E C Forest Products (Sales) – G & S Specialist Timber – Gilmour & Aitken – Siero Lam SA

RECLAIMED TIMBER SUPPLIERS

SAWMILLS, SOFTWOOD

RAILWAY SLEEPERS

Re1000 – Earthy Timber

REMEDIAL TREATMENT SERVICES Re3000 – Geo. Oliver & Son – Rotafix (Northern) Ltd

RESEARCH & DEVELOPMENT SERVICES Re4000 – Buro Happold Ltd – Burwell Deakins Architects – Department of Agriculture, Marine and Food – Edinburgh Napier University – FIRA International Ltd – Heyne Tillett Steel Ltd – Jenkins & Potter Ltd – Kingfisher – M L Kubik & Son Ltd – Milner Associates – PRP – Rotafix (Northern) Ltd – University of Manchester

RESTORATION SPECIALISTS

Re6000 – DHD Structures Ltd – ERW Joinery Ltd – Green Oak Carpentry Company Ltd, The – McCurdy & Co Ltd – Rotafix (Northern) Ltd

Sa8000 – Gilmour & Aitken – PiveteauBois – S R Timber

SHOPFITTERS Sh4000 – T Manners & Sons Ltd – Vascroft Contractors Ltd SIPS MANUFACTURERS & SUPPLIERS St8500 – Advanced Housing Systems Ltd – Building With Frames – Cowley Timber & Partners Ltd – Cygnum Ltd – Local Homes - Low Carbon Living – Lowfield Timber Frames Ltd – OFP Timber Framed Homes Ltd – Simonin – Space4 Ltd

SOFTWARE

So1000 – Cowan Consultancy Ltd – FRILO Software GmbH – Greentram Software Pty Ltd – Koppers – MiTek Industries Ltd – NBS – Ten-25 Software – Trimble Solutions UK

SOFTWOOD, ENVIROMENTALLY CERTIFIED So6000 – Champion, A W Ltd – Fulham Timber Merchants Ltd – Price & Pierce Forest Products Ltd – Stourhead (Western) Estate – WoodBlocX Ltd

STAIN MANUFACTURERS & SUPPLIERS St1000 – Holman Specialist paaints Ltd – Rawlins paints

STAIR COMPONENTS

St2000 – Beaumont Forest Products Ltd – Haldane (UK) Ltd – Lowe & Simpson Ltd – Quinn Hardwoods Ltd – SHERPA Connection Systems – Timberdeal Ltd

STAIRCASES St3000 – Bolt Building Supplies Ltd – Chase Joinery Contracts Ltd – Haldane (UK) Ltd – Houghtons of York – JDM Joinery Ltd – Lowe & Simpson Ltd – MFM Joinery Ltd – Redwood Design Ltd STREET FURNITURE, TIMBER St5000 – CTS Bridges Ltd – Oxford Oak – Street Design Ltd – WoodBlocX Ltd

STRENGTH GRADED TIMBER St6000 – Beaumont Forest Products Ltd – Border Hardwood Ltd – G & S Specialist Timber – Harlow Bros Ltd – Vincent Timber Ltd

STRUCTURAL COMPONENT MANUFACTURERS & SUPPLIERS St8000 – Benfield ATT Group Ltd – Catnic Ltd – Crocodile Timber Frames – Harlow Bros Ltd – Local Homes - Low Carbon Living – MiTek Industries Ltd – OFP Timber Framed Homes Ltd – Oregon Timber Frame Ltd – Simpson Strong-Tie – Space4 Ltd – Timber Frame Management Ltd – Wiehag Timber Construction – Wolf Systems Ltd

STRUCTURAL TIMBER COMPOSITE MATERIAL St9000 – A J Laminated Beams Ltd – Flight Timber Products Ltd – Steico UK Ltd

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TRADA Buyers’ guide

SURVEYORS, BUILDING

Su1000 – Appledown Marine – Broughton Beatty Wearring Ltd – Buchanan Surveys – BWB Consulting Ltd – C P R (Construction Plans & Regulations) Ltd – Canham Consulting – Chescoe Chartered Surveyors & Architects Ltd – David Barrington Ltd – David Norris Associates – Ellis and Moore Consulting Engineers – Fidler Associates Ltd – Haydn E Williams Cyf. Chartered Surveyors – HM Chambers and Partners – Hutton & Rostron Environmental Investigations Ltd – Julian Owen Associates Architects – Keith Sanger Associates – KRP Building Consultancy Ltd – L F Webb & Partner – M K A Architects Ltd – Margaret Steele Surveyor – Mason Clark Associates – NPS South West Ltd – Oakleaf Building Surveyors – Pembroke Design Ltd – Perega – Philip Hawkey Architectural Design – Pollard Architectural – Property Maintenance Services Directorate – Robert Stone Associates – Rossi Long Consulting – S.Gurd Property Solutions Ltd – Sheldon Bosley Knight Ltd – Stride Treglown Ltd – The Morton Partnership Ltd – Trewin Design Architects – W M Design & Architecture Ltd – Wright Design – Wyatt Carruthers Jebb – Yeoman Ltd

SURVEYORS, QUANTITY Su2000 – E & P Building Design – Entrust Support Services Ltd – NPS South West Ltd – Pembroke Design Ltd

TESTING SERVICES, ACOUSTIC Te0500 – Bickerdike Allen Partners LLP

TESTING SERVICES, FIRE Te2000 – BM TRADA – DDS (International) Ltd – Fabric Flare Solutions Ltd – Sealmaster Ltd

TESTING SERVICES, MECHANICAL Te3000 – BM TRADA

TESTING SERVICES, PRODUCT Te3500 – Kingfisher – Milner Associates – Setsco Services PTE Ltd

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TESTING SERVICES, STRUCTURAL

Te4000 – AED – Baynham Meikle Partnership – BM TRADA – Greenbeams.com, Structural & Civil Consultants – Michael Hadi Associates – Milner Associates

TIMBER AGENTS & IMPORTERS, GENERAL Ti0200 – Benchmark Timber Ltd – Capricorn Eco Timber – Oregon Timber Frame Ltd – Quinn Hardwoods Ltd – Ramsay Timber Ltd – Silva Timber Products Ltd – Timbersource Ltd – Timbmet

TIMBER AGENTS & IMPORTERS, HARDWOOD Ti0500 – Border Hardwood Ltd – Burton, E O & Co Ltd – Capricorn Eco Timber – Ghana Forestry Commission – James Latham PLC – NHG Timber Ltd – Oregon Timber Frame Ltd – Pacific European Timber Agency Ltd – Quinn Hardwoods Ltd – Timbersource Ltd

TIMBER AGENTS & IMPORTERS, SOFTWOOD Ti0800 – Morgan Timber – NHG Timber Ltd – Norman Ltd – Price & Pierce Forest Products Ltd – S R Timber – Timber Focus – Timber Marketing Services T/A Wood Concepts – Timbersource Ltd – Vida Wood UK Ltd

TIMBER COMPONENTS, AGENTS & IMPORTERS Ti0900 – Finewood Marketing (UK) Ltd – Scotframe Timber Engineering Ltd

TIMBER DRYING SERVICES Ti1000 – Earthy Timber – International Timber – Timberdeal Ltd

TIMBER FRAME DESIGN SERVICES Ti1200 – A T K Partnership Ltd – ADEPT Consulting (UK) Ltd – Advanced Housing Systems Ltd – AED – AJR Design Solutions Ltd – Andrew Page Oak – Apex Timber Frames Ltd – ARC Engineers Ltd – Archibald Shaw LLP – Barter Hill Partnership Ltd – BdR Civil & Structural Engineering Ltd – BTS Timber Engineering Ltd – Campbell Reith Hill LLP – Canham Consulting

– Cartledge Timber Frame – Civil & Structural Partnership Ltd – Civil and Structural Engineering Shetland Ltd – Clarke Matthews Ltd – Croft Structural Engineers – Crucis Designs Ltd – Deeside Timberframe Ltd – D-Tech Design Ltd – E & M West – E A R Sheppard Consulting Civil & Structural Engineers Ltd – Eden Timber Frame – Ellis and Moore Consulting Engineers – Evolve – Fleming Homes Ltd – Forest Hill Design – FrameWork Synergies Ltd – Furness Partnership Ltd – GCTF Ltd (General Construction & Timber Frame) – Geoff Crowther Architects Ltd – Goodson Associates – Green Arc Design – Greenbeams.com, Structural & Civil Consultants – Hilton Barnfield Architects – Hockley & Dawson – Holbrook Design Ltd – IAF Design – Inwood Engineering Ltd – JML Contracts Ltd – Lawrence Duck Architecture – McColl Associates – Mercers Timber Frame Consultancy – Merronbrook Ltd – Michael Hadi Associates – Mime Architects Ltd – Modulus – Momentum Consulting Engineers – Morrish & Partners – MTE (Leicester) Ltd – Myriad Construction Ltd – Neatwood Homes Ltd – Norder Design Associates – ONCE Civil & Structural Ltd – Pavlovskis Lister Ltd – Peter Dann Ltd – Philip Hawkey Architectural Design – Pollard Architectural – PPK Timber Designs Ltd – Rainford Timber Co Ltd – Ramboll – Ramsay and Chalmers – Robert Rowett Architectural Services – Robertson Timber Engineering Ltd – Roger Casey Associates Ltd – Rushmoor Engineering Services – Sanders Consulting – Scandia Hus Manufacturing Ltd – Self-Build-Pro (Chartered Surveyors) – Sevenoaks Modular Ltd – Silvatec Design Ltd – simplydesignsolutions – SMS Timber Frame – Solid Structures (UK) Ltd – Spencer Jones Design Ltd – Stirling Maynard – Straight Up Timber Frame Ltd – Structural Design Associates Ltd – Structural Timber Design Services Ltd – StructureMode Ltd – T F S Design Ltd – T W P Consulting Structural & Civil Engineers – TALL Engineers Ltd – Technical & Graphic Design Services Ltd – Truro Timber Frames – Vision Development – Wain Morehead Architects Ltd – Wedeman Consulting Ltd – Westructure Timber Frame Ltd – Wolf Systems Ltd

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TRADA Buyers’ guide

TIMBER FRAME MANUFACTURERS

Ti2000 – A. C. Roof Trusses Ltd – Advanced Housing Systems Ltd – Allwood Timber Construction – Andrew Davie Timber Frame Homes – Anson Timberworks Ltd – Apex Timber Frames Ltd – Arbonis – B & K Structures – Bartram Timber Frame Ltd – BE Timber Frame – Bespoke Timber Frames – Benfield ATT Group Ltd – Building With Frames – Cartledge Timber Frame – Charnwood Timber Frame – Constructional Timber (Manufacturers) Ltd – Countryside Properties Timber Frame – Crocodile Timber Frames – Cygnum Ltd – Deeside Timberframe Ltd – Eco Homes Direct Ltd – Egoin – Egoin UK Timber Construction – Elite Systems GB Ltd – Elite Timber Homes – English Heritage Buildings LLP – Fleming Buildings Ltd – Fleming Homes Ltd – Flight Timber Products Ltd – Frame UK – Gibbs Timber Frame Ltd – Guardian Homes – Havelock ONE – Ipswich Timber Frame Ltd – Joseph Griggs & Co Ltd – Karlin Timber Frame (NE) Ltd – Kestrel Timber Frame Ltd – kritikoswood – Lakeland Timber Frame – Local Homes - Low Carbon Living – Lowfield Timber Frames Ltd – Manley Construction – Merronbrook Ltd – Moreys – MTE (Leicester) Ltd – Neatwood Homes Ltd – Norscot Joinery Ltd – Oak Frames Direct – OFP Timber Framed Homes Ltd – Oregon Timber Frame Ltd – Paramount Timber Frame Ltd – Pennine Timber Frame (UK) Ltd – Perkins & Perry Ltd – Phase 8 Development Company – Q T F Services – Rainford Timber Co Ltd – RMJ Homes Ltd – Robertson Timber Engineering Ltd – Scandia Hus Manufacturing Ltd – Scotframe Timber Engineering Ltd – Sevenoaks Modular Ltd – Siero Lam SA – Space4 Ltd – STREIF – Swift Timber Homes Ltd – Sydenhams Timber Engineering – T J Crump Oakwrights Ltd – The Stable Company (Goodricks) Ltd – Thomas Armstrong (Timber) Ltd – Timber Frame It (SE) Ltd – Timber Frame Management Ltd – Timber Kit Solutions Ltd – Timbertech Homes Ltd – Timberworks Europe – Townsend Timber – Truro Timber Frames – Turner Timber Frames Ltd

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– Urban Marque – Vision Development – Wales Timber Solutions – Walker Brothers (Timber Frames) Ltd – Westcountry Timber Frames – Westructure Timber Frame Ltd – Westwind Oak Buildings Ltd – Williams Homes (Bala) Ltd

TIMBER FRAME SITE ERECTION SERVICES Ti1500 – 21st Century Carpentry Building Services Ltd – Advanced Housing Systems Ltd – Andrew Page Oak – Apex Timber Frames Ltd – B & K Structures – BE Timber Frame – Bespoke Timber Frames – Brendan Flynn Construction Ltd – Cartledge Timber Frame – Charnwood Timber Frame – Cygnum Ltd – Deeside Timberframe Ltd – Eden Timber Frame – Flight Timber Products Ltd – Forest Hill Design – Gibbs Timber Frame Ltd – JML Contracts Ltd – Karlin Timber Frame (NE) Ltd – Kilbroney Timber Frame Ltd – Laminated Timber Structures Ltd – Martin Robinson Carpentry Ltd – Mercers Timber Frame Consultancy – Merronbrook Ltd – MTE (Leicester) Ltd – Myriad Construction Ltd – Norfolk Timber Frames Ltd – Oakridge Building Company – P Thomas Associates Ltd – Paramount Timber Frame Ltd – Pennine Timber Frame (UK) Ltd – Rainford Timber Co Ltd – RMJ Homes Ltd – Self-Build-Pro (Chartered Surveyors) – Steve Coleman (Timber Erectors) Ltd – Timber Design Services – Timbertech Homes Ltd – Timbertek Ltd – Truro Timber Frames – Turner Timber Frames Ltd – Venturer Pte Ltd – Vision Development – Wales Timber Solutions – Westructure Timber Frame Ltd

TIMBER FRAME, ANCILLARY COMPONENTS Ti2700 – Allwood Timber Construction – Bespoke Timber Frames – Crocodile Timber Frames – DuPont (UK) Ltd – Flight Timber Products Ltd – Frame UK – MTE (Leicester) Ltd – Scotframe Timber Engineering Ltd – Simpson Strong-Tie

TIMBER FRAME, CARPENTRY FRAMED STRUCTURES Ti2500 – A J Laminated Beams Ltd – Allwood Timber Ltd – Border Oak Design & Construction – Cowley Timber & Partners Ltd – Crocodile Timber Frames – Flitcraft Ltd – GCTF Ltd (General Construction & Timber Frame) – Gibbs Timber Frame Ltd

– Green Oak Carpentry Company Ltd, The – McCurdy & Co Ltd – Oak Frames Direct – Paling Joiners – Robertson Timber Engineering Ltd – Steve Coleman (Timber Erectors) Ltd – T J Crump Oakwrights Ltd – The Cartlodge Company – Turner Timber Frames Ltd – Wales Timber Solutions – Westructure Timber Frame Ltd – Westwind Oak Buildings Ltd – Wooden House

TIMBER GROWERS

Ti4000 – Coed Cymru – Forest Service, DAERA – Stourhead (Western) Estate

TIMBER IMPREGNATION PLANT SUPPLIERS Ti7000 – Koppers – Lonza Wood Protection

TIMBER MERCHANTS, GENERAL Ti7500 – Aitken & Howard Ltd – Alsford Timber – Arnold Laver – Beaumont Forest Products Ltd – Bell & Sime Buildbase – Benchmark Timber Ltd – Bolt Building Supplies Ltd – Brodies Timber – Buildbase Ltd – Capricorn Eco Timber – Chadwicks (Mowbray Drive) Ltd – Days Buildbase – Fleming Buildbase – Gibbs & Dandy – Harlow Bros Ltd – Hay & Co Buildbase – Hendricks Lovell – International Timber – J P Corry Group Ltd – Joseph Griggs & Co Ltd – kritikoswood – Meyer Timber Ltd – Mid-Sussex Timber Co Ltd – Moreys – Nottage Joinery & Timber Merchants – Panelco Ltd – Premium Timber Products Ltd – Ramsay Timber Ltd – Scandia Hus Manufacturing Ltd – Silva Timber Products Ltd

TIMBER MERCHANTS, HARDWOOD SPECIALIST Ti7600 – A C Timber Solutions Ltd – Abbey Woods – Aitken & Howard Ltd – Border Hardwood Ltd – Brooks Bros (UK) Ltd – Capricorn Eco Timber – Champion, A W Ltd – Coed Cymru – Days Buildbase – E C Forest Products (Sales) – English Woodlands Timber Ltd – Exterior Decking – G & S Specialist Timber – Gilmour & Aitken – iWood Timber Ltd – James Latham PLC

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TRADA Buyers’ guide

– Melingoed Ltd – Norman Ltd – Nottage Joinery & Timber Merchants – Thorogood Timber Ltd – Timbersource Ltd – Vastern Timber – W. L. West & Sons Ltd – Woodtrend Ltd

TIMBER MERCHANTS, SOFTWOOD SPECIALIST Ti7700 – Abbey Woods – Aitken & Howard Ltd – Beaumont Forest Products Ltd – Benchmark Timber Ltd – Brooks Bros (UK) Ltd – Davidson Timber UK Ltd – Days Buildbase – Gilmour & Aitken – Hendricks Lovell – James Latham PLC – Nicks & Co (Timber) Ltd – Norman Ltd – Price & Pierce Forest Products Ltd – Thorogood Timber Ltd – Timbersource Ltd – Vida Wood UK Ltd

TOOLS, POWER

To0500 – G & S Specialist Timber – Nottage Joinery & Timber Merchants

TRUSSED RAFTER MANUFACTURERS & SUPPLIERS Tr4000 – A. C. Roof Trusses Ltd – Arnold Laver – Benfield ATT Group Ltd – Bolt Building Supplies Ltd – Buildbase Ltd – Flight Timber Products Ltd – Frame UK – Gibbs Timber Frame Ltd – Joseph Griggs & Co Ltd – Melingoed Ltd – Merronbrook Ltd – MiTek Industries Ltd – Moreys – MTE (Leicester) Ltd – Nicks & Co (Timber) Ltd – Pasquill – Perkins & Perry Ltd – Phase 8 Development Company – Scandia Hus Manufacturing Ltd – Scotts of Thrapston Ltd – Sevenoaks Modular Ltd – Sydenhams Timber Engineering – Thomas Armstrong (Timber) Ltd – Timber Kit Solutions Ltd – Trussed Rafter Association – Turner Timber Frames Ltd – Wolf Systems Ltd

VARNISH MANUFACTURERS & SUPPLIERS Va1000 – AkzoNobel Industrial Coatings Ltd/Sikkens Joinery – Ghana Forestry Commission – Teknos GBI

VENEER AGENTS, IMPORTERS & DISTRIBUTORS Ve1000 – Finewood Marketing (UK) Ltd

VENEERING SERVICES

Ve3000 – Kent Flush Doors & Joinery Ltd – Taylor Made Joinery Interiors Ltd

WARRANTY BODIES Wa1000 – BLP Insurance – NHBC

WINDOW MANUFACTURERS

Wi2000 – Adams Joinery Ltd – Biker Group – Dempsey Dyer Ltd – ERW Joinery Ltd – Fyntons Ltd – JDM Joinery Ltd – kritikoswood – Marshall Specialist Joinery Ltd – MFM Joinery Ltd – NBJ (London) Ltd – Norscot Joinery Ltd – Original Box Sash Windows Company, The – Patchett Joinery Ltd – Scotts of Thrapston Ltd – T Manners & Sons Ltd

WINDOWS, HARDWOOD

Wi3000 – Chase Joinery Contracts Ltd – Dempsey Dyer Ltd – Houghtons of York – JCK Joinery – Original Box Sash Windows Company, The

WINDOWS, SOFTWOOD

Wi4000 – Charnwood Timber Frame – Chase Joinery Contracts Ltd – Dempsey Dyer Ltd

WOODTURNING SERVICES Wo2000 – Haldane (UK) Ltd – Lowe & Simpson Ltd

TRUSSED RAFTER MANUFACTURING EQUIPMENT Tr5000 – MiTek Industries Ltd – Wolf Systems Ltd

VAPOUR PERMEABLE MEMBRANES Va0500 – Beaumont Forest Products Ltd – DuPont (UK) Ltd – Rotho Blaas SRL

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Timber 2020 Industry Yearbook

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TRADA Advertisers’ index

List of advertisers A C Roof Trusses Ltd....................................................... 164

Ghana Forestry Commission.................................. 138-139

QTF Services Ltd................................................................ 38

A Hingley & Son (Timber) Ltd................................... 68, 160

Global HSE Solutions....................................................... 182

R B Doors & Joinery Ltd................................................. 180

A W Champion Ltd.......................................................... 158

GP Wood........................................................................... 140

Ranns Construction.......................................................... 78

ACCSYS Group........................................ Inside Front Cover

Hans Hundegger AG.......................................................... 80

Redwood Timberframe Homes........................................ 32

Adam Power Associates.................................................. 72

Hanson Plywood Ltd......................................................... 60

Rotafix Ltd.......................................................................... 84

Alsford Timber................................................................. 158

Hazlin of Ludlow Ltd....................................................... 178

Rubio Monocoat UK........................................................ 196

Altripan UK Ltd................................................................. 146

Hoppings.......................................................................... 208

Rushmoor Engineering Services..................................... 94

Anson Timberworks.......................................................... 60

Houghtons of York........................................................... 170

Scotframe Timber Engineering Ltd................................. 88

B&K Structures.................................................................. 42

Hout De Groote NV........................................................... 151

Sealmaster....................................................................... 174

BeA Fastening Systems......................... Inside Back Cover

Howarth Timber Group................................................... 142

SHERPA Connection Systems GmbH............................... 66

Binderholz UK Ltd............................................................ 128

HSB CAD........................................................................... 222

Siberian Timber UK Ltd................................................... 146

Border Merchant Systems............................................. 150

Hybrid Structures............................................................ 106

Siero Lam SA .................................................................. 212

British Woodworking Federation........................... 164, 242

Ian Chalk Architects......................................................... 34

Brooks Bros UK Ltd..................................................... 2, 214

Illingworth Ingham Ltd................................................... 160

Simpson Strong-Tie........................................................ 266

BSW Timber..................................................................... 134

IMPRA Wood Protection Ltd........................................... 200

Calders and Grandidge................................................... 122

International Timber......................................................... 10

Capricorn Eco Timber..................................................... 146

ISO Chemie GmbH........................................................... 108

Carbon by Design............................................................ 209

ITW Construction Products.............................................. 76

Carpentier Hardwood Solutions...................................... 40

James Latham .............................. 48, Outside Back Cover

CO2 Timber...................................................................... 136

Jet Joinery Supplies Ltd................................................. 174

Combilift........................................................................... 171

Koppers Performance Chemicals.......................... 198-199

Concept Distribution......................................................... 18

L & G Forest Products Ltd.............................................. 156

Constructional Timber (Manufacturers) Ltd................. 130

Lakeland Timber Frame................................................... 38

Cowan & Dawdson Joiners & Builders......................... 164

Laminated Timber Structures Ltd................................. 106

Creffields (Timber & Boards) Ltd................................... 180

Lane Civil Engineering Ltd................................................ 80

Crendon Timber Engineering Ltd..................................... 88

LFS Fire Solutions & Maintenance................................ 188

D G Timber Solutions........................................................ 62

Liberty Contracts............................................................. 184

Déanta UK Ltd.................................................................. 201

Lignia Wood Company Ltd............................................. 194

Deeside Timberframe Ltd................................................. 72

Lowfield Timber Frames.................................................. 72

Doors Plus Group............................................................ 186

Malaysian Timber Council.............................................. 148

Dorset Timber Engineering Ltd...................................... 108

MDM Timber Ltd.............................................................. 148

Dura Composites ............................................................ 204

MiTek Industries Ltd....................................................... 110

UAB Liskandas................................................................ 122

DWB Timber Engineering............................................... 222

MKM Group ..................................................................... 149

Vandecasteele Houtimport....................................... 46, 161

Dynalyse AB..................................................................... 116

Murray Timber Group........................................... 6, 70, 159

Venables Oak Ltd.................................................... 116, 208

Eco Homes Direct............................................................ 116

NBJ London Ltd............................................................... 176

W J Group......................................................................... 192

Ecodek.............................................................................. 206

Neatwood Homes Ltd....................................................... 62

W L West & Sons Ltd....................................................... 152

Ecosse Doors Ltd............................................................. 170

Nexen Lift Trucks Ltd...................................................... 141

Wales Timber Solutions.................................................... 86

Egoin Timber Construction............................................. 107

NHG Timber Ltd............................................................... 144

Wardells Long Lengths................................................... 176

Engineered Timber Solutions Ltd.................................... 92

Norbord Europe....................................................................4

Werzalit UK............................................................... 206, 212

Envirograf......................................................................... 193

Oak Ridge Building Co...................................................... 62

West Country Timber Frames........................................ 106

Eurban.............................................................................. 100

Owatrol UK Ltd................................................................. 200

Whitmore's Timber......................................................... 150

Fabric Flare Solutions Ltd.............................................. 192

P & Q International.......................................................... 140

Wood Waste Control Engineering.................................. 158

Fire Retardant UK ........................................................... 180

Paramount Timber Frame.............................................. 120

Woodsafe Timber Protection AB............................ 190-191

Flitcraft Timber Frame...................................................... 73

PEFC UK Ltd....................................................................... 50

Woodscape Ltd................................................................ 210

FSC UK.............................................................................. 134

PiveteauBois............................................................ 102, 216

Wyckham Blackwell......................................................... 82

Garnica............................................................................. 154

Protect Membranes.......................................................... 68

Züblin Timber........................................................... 104-105

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Timber 2020 Industry Yearbook

SIPCO Ltd........................................................................... 92 Stafford Bridge................................................................ 184 Stora Enso Timber........................................................... 148 Struktura Engineering Services....................................... 38 TDB Solutions.................................................................... 66 Teknos.............................................................................. 218 Ten-25 Software.............................................................. 154 Tilly Holzindustrie............................................................ 136 Timber Connection...............................................................8 Timber Frame Management............................................ 82 Timber Frameworks (Alba) Ltd...................................... 108 Timber Innovations........................................................... 94 Timber Trade Federation............................................ 14, 52 Timbmet Ltd..........................................................................1 TMJ Contractors Ltd....................................................... 166 Tradelink Wood Products Ltd......................................... 136 Tyler Hardwoods Ltd....................................................... 140

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