im building my first composite deck(timbertech)
the deck will have to have joints in it ,will the composite hold up o.k.if i 45 the joint or should i square butt it?
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Square it and leave a gap; 1/8" to 3/16" for expansion. Ease the edges a bit.
If you 45 it, you'll create a tender edge that you'll regret.
The material should come with an installation guide.
I try not to have joints in composite decking, but plan for them during framing if I do by doubling up the joists where the joint will be located. The extra joist gives better bearing to the decking. Also, wrap the joists below the joint with Graces deck protection (or tar paper) so trapped water from the gap won't rot the framing.
Decking instructions are often fixed to the boards on a sticker.
Good luck.
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