I recently built a top 24" x 40" using Ash. Had the wood laying in the shop and knew it wasn't completely dry. (Was 14 to 16%) Turned out beautiful and after laying around the shop for about 10 days started to put finish on it. That's when I noticed it had started to cup! No way to pull that thing flat on a cabinet!
Since this top is 1 1/2" thick I didn't expect it to move much. I've been told to lay it out where air can get to both sides and that it will probably flatten out. Don't know if that's true but am concerned that it will later (after assembly) start to cup again.
Decided to start over and went to my wood supplier to get Hard Maple. Put a moisture meter on the Maple and found it to have about 12 to 14%. Now I fear I'm headed for the same problem.
So after a long story I thought I'd ask what needs to be considered to assure a good stable top? Anyone having experience to share that will help me avoid another problem will be appreciated.
Thanks, Woodshoplast