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Forum topic by Pizzadave posted 03-12-2018 09:41 PM 360 views 0 times favorited 2 replies Add to Favorites Watch
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125 posts in 934 days

03-12-2018 09:41 PM

Topic tags/keywords: walnut cupped

Hello everyone, I have a nice piece of slab walnut that I was going to use as a table top. Moisture was around 20% when I got it and brought it inside next to my wood stove. . Moisture level was around 6 after about 3 weeks or so. When I took it to my shop(in the garage) I planed it and it was flat. I left it for a couple of days and I noticed it was cupped pretty bad. I’m assuming it was due to going into an environment with more moisture than by my wood stove. It has sat for a few more weeks and I got a new planer. When I planed the board flat, I’m noticing it’s trying to cup again. What gives??

-- Dave, NY, It works-It really does!

2 replies so far

View LittleShaver's profile


689 posts in 1471 days

#1 posted 03-12-2018 09:49 PM

My guess is that it never really reached 6% throughout the slab. You don’t mention how thick it is, but it sounds to me like you’re rushing things a bit. The thumb rule is 6 months per inch of thickness if I remember correctly.

-- Sawdust Maker

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125 posts in 934 days

#2 posted 03-12-2018 09:56 PM

Yes. I did rush it for time constraints. It is 1-3/4 inch thick. I ended up going and buying a kiln dried slab for my project but I’d hate to see this nice piece of wood go to waste. I’m still learning. Lesson learned. Thanks for relying.

-- Dave, NY, It works-It really does!

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