Quote:
Originally Posted by robt57
The back surface shrunk and the distance shortened. Which is what I suspected. So you think it is possible the OSB sponged dampness and the real wood absorbed it and swelled in the middle, or that the outer surface of the back shrunk ??
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It's really hard to say but probably.The back now has a concave.
Like I said,the one that is made entirely of OSB is still nice and flat