warped 6x6 pergola post

Old 05-06-14, 11:27 AM
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warped 6x6 pergola post

I built a new deck and pergola last summer and over this winter one of the 6x6 post warped considerably. The bend starts about 3' off the ground and is probably 1"1/2 out of whack towards the top. Its a huge job to replace the post? Is there a way to take the warp out of it?
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Old 05-06-14, 12:25 PM
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Sorry this is NOT my area of expertise and I came to ask a question myself BUT I have removed the warp from wood by rewetting it and laying it flat with weight on it. Take this same idea on a vertical.

Maybe get two (probably have to be steel) strong beam and use lags to press them together after wetting the wood. Make sure its not a dry hot day first.

On the other hand if the wood now just took its natural shape you may have to replace it. Or get 2 thin steel plates and install them permanantly on the sides of your posts. Might actually look good if they are rust resilient.

remember im not a pro
Old 05-06-14, 12:42 PM
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No practical way that I know of. Single biggest disadvantage of pressure treated timber is its tendency to warp and twist, particularly as the "grading" of the material decreases. This seems to be the case in your example, based on the large number of knots I see.

See if your supplier can get you some #1, knot free KDAT (Kiln Dried After Treatment) posts. You'll pay a little more, but shouldn't have the problem you've pictured.

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