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Question: When is your book on workbenches coming out? I read the    excerpts in your magazine this weekend and decided to purchase it before I attempt a bench of my own, I can’t wait. I have acquired some Southern Yellow Pine that I intend to use on my bench (it’s fire-rated 2 x 12 x 8′). It has been in my climate-controlled garage for about three months. The last time I used construction grade (non-rated) SYP she moved all over the place once cut. What do you recommend?
 
– Andy Scott

Answer: Southern Yellow Pine moves a lot as it dries, but once it’s dry, it is quite stable. How stable? Download the pdf below that explains how to figure wood movement for a variety of species.

Here’s what I do when I use yellow pine in any project:

1. Crosscut and rip everything to close size. Moisture migrates through the end grain, so cutting it close to size will make it dry faster.

2. Use a moisture meter to check your progress. Some SYP comes nearly dry (9 percent moisture content (MC)). I’ve seen some boards at 17 percent MC. It usually takes a few months for things to equalize with big projects such as this. Patience pays.

3. Only surface the wood for one assembly at a time. Work rapidly. When you glue up the top, clear the day. Surface and rip all the stock and glue it that day. When you glue up the legs, use the same strategy. It takes more time, but it really pays off.

4. When you glue it up, let it sit in the clamps at least five hours. The resins in the wood prevent the water in yellow glue from pentrating as quickly , this tip is from the chemists at Titebond.

On a final note: With Southern Yellow Pine that has been in my shop for a year or so, I can deal with it just like I deal with hardwoods. So it really is about managing the moisture because waiting a year is not a reasonable solution for most woodworkers.

I’m sure there are other good tips that I’m forgetting. If you have one, please leave it in the Comments section below (click on Comments and you’ll see how this works).

The book comes out Oct. 10. You can read more about it here.

– Christopher Schwarz

WoodMovement.pdf (272.5 KB)


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