Introduction

The Light Steel Frame Association (LSFA) was established to influence legislation, regulation and to support the overall objectives and growth of the sector. LSFA works closely with its members to raise awareness of the benefits of using steel framing systems (SFS) and provide access to industry contacts, technical expertise and market intelligence.

LSFA members comprise manufacturers, supply chain partners, installers, consultants and clients - all working together towards the common goal of growing the specification and use of LSF technology. Light steel frame (LSF) is an established method of construction with over 30 years history of use in the UK. LSF systems hold an excellent track record of in use performance with the solution being used in many different applications, with LSF structures forming a significant portion of the offsite construction sector. There are various types of LSF systems which generally fall into two categories:

Load-bearing frames

Load-bearing frames which replace the inner skin of a traditionally built structure. Typically built up to a maximum of 15 storeys high.

Steel components

Steel components which are installed within a concrete or steel frame host structure. These systems are often referred to as SFS and include ‘infill’ sections/panels which are set between the host frame members and ‘oversail’ sections/panels where the system is fixed to the face of the structure.

These systems can be built as a through-wall system with lining boards factory applied, panelised systems with external sheathing board and insulation, or steel sticks for erecting independently on the construction site.

Light steel frame can also provide the structure of a volumetric modular building or be used in conjunction with other building products to create a hybrid structure.

Sectors covered by LSF include - residential, commercial bedspace (which includes care homes, hotels and student accommodation), education, healthcare, and commercial.

Ayrshire Metals

There is often a misconception within design circles that the use of offsite construction limits architectural flare and leads to uninspiring box-like structures. This is far from the case as can be seen from the wide range of structures in differing architectural forms which members of the LSFA have produced.

To maximise the benefits of offsite construction, early identification of the type of offsite system to be used leads to more cost-efficient construction, and the benefits of using LSF noted in this Guide clearly demonstrate why LSF is the preferred product.

This Guide gives a high-level overview of the system and is not intended to provide the technical answers, but to signpost to other sources of technical information to assist in the design and development of steel frame projects.