*Would appreciate any thoughts on the following:In laying 5/4 x 6 PT decking, is it worth kerfing the underside to prevent cupping when the boards will be screwed in place?Tx.
I do it on cedar as well as PT. 3 cuts first the Middle, then over by half on each side ( split the difference) . Oh and yea it is worth the trouble.I also did some siding on one side of a house with brutal sun conditions after the home owner replaced it twice before.
I've never heard of anyone kerfing a deck board or siding for that matter.
Since the original poster hasn't been back since 2001, I guess we'll never know if he did it or not.
I understand the theory, but what compelled you to do it?
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