Hardwood Deck Merbau decking - Durable and Hearty Merbau is the most popular, extremely durable and hearty decking board for a deck or verandah used. When using the 110mm wide board with our unique secret fixing system, it has a clean and neat finish as there are no exposed screws or nails. Framing materials can differ depending on location. Galvanised steel can also be used to increase spans depending on the deck size.
Framed using timber or galvanised steel Laid with our unique secret fixing system, no visible nails! Cut on site and installed by our professional carpenters Durable and hearty Scrubbed and sanded down to remove all impurities Washed and coated twice with decking oil to finish it off
Source: http://aussieoutdoorliving.com.au/product/decking/