gap between composite decking boards

What Is Composite Decking Expansion Gaps? - Composite Warehouse

Plastic-Wood Decking Gap. When you are installing your deck you should not allow your composite decking board to meet at both ends. You have to leave a space between the composite decks. This is to accommodate composite decking expansion gap. The essence of leaving this space is for the decking to expand and contract when they heat up.【Get Price】

deck - Sealing seams between outdoor composite decking - Home .

Been there done it. Caulking between the composite deck boards works if sloped right. I sloped mine 1" on 6& 39; On one deck I have plastic panels under it and that was a bad idea cause the mains and underside cant breath and is rotting. I am about to replace the 8 year old rotted treated boards with composite like the others and caulk it too.【Get Price】

Deck floor board spacing gaps: Proper gap size to leave .

When securing the decking it is important to leave adequate spacing between the boards for water to drain. The goal is to have about an 1/8-inch gap the diameter of an 8d nail between boards after the decking has dried to its equilibrium moisture content.【Get Price】