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Kerfing deck boards?

Jess_Hallas's picture

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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.

(post #163304, reply #1 of 3)

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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.

kerking deck boards (post #163304, reply #2 of 3)

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.

no kidding? (post #163304, reply #3 of 3)

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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