Reply by mbs

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Posted on Acclimatization and twisted boards

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1656 posts in 2969 days

#1 posted 03-16-2013 03:08 AM

Cutting and planing wood induces stress in the wood. Depending on the environment, grain, moisture content,... the wood will ‘relieve’ the stress by moving some direction.

The ‘proper’ way to flatten a board is to buy it 1/4’ Thicker than needed. Then 1)Joint the faces and plane the other face flat but leave about an eighth extra. Let the board sit overnight to release the stress. You can help it release the stress by dropping the board on a cushioned surface like floor mats. Then repeat the process again until you have it at the right dimension.

I was building flush mount doors for a curio cabinet out of cherry. I had to make them 3 times (starting with new wood) before I got flat doors. It’s best to use very straight grained wood for rails and stiles.

Hope this helps

-- Sorry the reply is so long. I didn't have time to write a short reply.

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