How to build solid decking frame for composite Decking

Table of Contents

Composite decking requires a solid and good quality subfloor that will make sure your deck has the longest possible usage time. In Australia, there is a National timber structure standard AS1684.4-2000. Building a deck subfloor following this standard will guarantee that your deck frame is solid and compliant with regulations. At WoodEvo, we are not only selling deck boards, but we are also helping our customer’s tradies to build the best deck.

1) Stump hole: 300mm x 500mm (deep)

2) Walling plate (bearer timber member attached to a brick wall) 190x45mm treated pine

3) Bearers: 2 x (90x45mm) Treated pine 

1400mm max single span

1700mm max continue span

4) Joists 90x45mm Treated pine

450mm max spacing

1400mm single span

1700mm continue span

Joists hanger or framing anchors are mandatory!!!

5) Floor plate

90x35mm or 70x35mm treated pine to attach to a solid concrete floor is ok, minimum 10mm gap between the floor plate and the floor is required!

Overall, deck frame supplies required in table

About The Author

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Owen Wang

Owen is the director here at WoodEvo and has a passion for providing high quality composite decking products that can be used to transform any Australian home into an ideal oasis. With more than 15 years in the decking industry and a tradie background, Owen is your go-to guy when it comes to composite decking and creating innovative outdoor spaces. Got a question about this article or WoodEvo’s range of composite decking products?

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