Master woodworker George Vondriska provides tips on how to air dry fresh cut lumber for your woodworking projects. A WoodWorkers Guild of America (WWGOA) original video.
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Ticket # 42674 42672‬ Old air drying wood freshly cut lumber in the video the gentleman states the ends of the lumber is coded to slow down the moisture escaping to fast what is it that you coat the end of the lumber with, also you mentioned the moisture in the wood what are you looking for in moisture of the wood to work with is there a percentage range that you need to have so the wood won’t warp when you’re building your project?
Yes, you coat the ends of the lumber as soon as possible after the tree is cut down. As far as the percentage of moisture content that you will target, it depends on your area. Here in MN, I dry lumber in my shop down to 6-8% moisture content, and that is stable. If I try to use it when it is still up around 10%, I have problems. Other areas in the country such as CO or AZ, that moisture content % might be closer to 4% given the lower ambient humidity. So do some research for what moisture content is stable in your area, and then try to achieve that before using the wood.
Paul
I cut my own timber, White and Red Oak, Popular, Maple, Pine etc and mill to desired boards on my one man saw mill. Air Drying here in south east North Carolina is tough. Like today humidity is 94%. I do not have a kiln so best I can do is about 18% moisture. The lumber is mostly used for my own projects in/around my home. I always have problem with swelling and shrinking.
any thoughts on how to control that?
thanks
Hi John. With proper air drying techniques you should be able to achieve equilibrium, whatever MC that might be in your area. Be sure to have plenty of air flow around your wood pile. Also, consider going with thicker stickers between rows to achieve better air flow. I dry my wood indoors, and point a fan at the pile, and use a dehumidifier, until I get the MC down to 20%. Then I turn off the fan and dehumidifier, and just make sure that there is good air flow around the pile. I can get wood down to 8%, which is a good equilibrium point up here in MN.
Paul
Woodworkers Guild of America
Did I hear you say to “coat” the ends of each board?
Yes, that’s correct.
verb
– provide with a layer or covering of something; apply a coat to.”coat each part with a thin oil”
Paul
Woodworkers Guild of America
Yes, you coat the ends of the boards (end grain) so they don’t dry too fast out the end grain which results in checking (cracks) .. Armorseal is a common recommendation (available on amazon) Latex paint can work too, but it is not as effective as armorseal which dries to a wax-like coating on the ends. On high value lumber that you store in your shop, you may also wish to seal end grain on leftovers before putting it back on your rack, as well.. (doesn’t do a lot if it is fully dried, but if you’re paying $20 a board foot for some lumber, the less you waste, the better)
I have some Maple slabs that were fresh cut when I moved from Minnesota to New Mexico. I couldn’t stack them right away and they warped. I thought if I could soak them in water, then stack them with weight on top, they might straighten out. Has this ever been tried? Is there another way it can be done?
Thanks,
Ken
Dear Ken,
Thank you for your patience. In response to your question-
Once they are warped and dried it is unlikely that you can flatten them out by attempting to re-hydrate them. Your best bet will be to cut into smaller pieces and flatten those pieces using a jointer and planer.
Paul
Woodworkers Guild of America
What methods can you recommend to remove the bark from sawn lumber, that will not gouge the live edge…there are drawknives that are sold for this purpose, yet you lose the “real” edge of the wood by doing that. And once the bark is off, what recommendations do you have for cleaning up the wood edge after it is dried….wire wheels, or are there better choices instead of this?
I have some racks in my workshop on the walls…..can I put fresh-cut lumber in the shop, stickered, in order to speed up drying (yet not go too fast in drying)?
I understand that you never want direct sunlight on drying wood either….something that should have been mentioned in the video. Thanks
Hello. Yes, you can dry lumber in the shop. I do it all the time. Interesting suggestion on the sunlight piece. I had not heard of that in the past but I’ll look into it. I’m sure that the concept is to not dry the wood too quickly.
Thanks
Paul-WWGOA
Wood left in the sun to dry without a cover can not only dry it too fast but causes fading. For me, the fading works to my advantage.
Ticket 18752 Can you share with me the style, make, and manufacturer of the moisture meter in this video?
Dear Thomas,
Thank you for your patience. In regards to your question-
Here is a source for the current version of this moisture meter: http://amzn.to/2nKTIJm
Sincerely,
Paul
Woodworkers Guild of America Video Membership
I worked at a hardwood sawmill for many years and if anyone’s interested here is a little tip for drying. The stickers between rows can cause staining that can run quite deep and ruin your wood for some “high end” projects so make sure they are kiln dry and use your router to cut grooves every half inch at 45 degree angles on both sides of the sticker. This will minimize surface contact while still providing the support you need to keep your wood flat and provides a little more airflow. Cheers
You refereed to a moisture meter. What should the meter read before you start using it. Different reading for different projects or what is the determinating factors
Hi Bill. The wood should stop dropping in moisture content while sitting indoors before you use it, and it should arrive at what is considered to be a safe stable point in your area. In my MN shop I dry wood to 7-9% and I wouldn’t use it above 10% for most projects. If the project is quite small I would consider using it, but for any medium/large project I wouldn’t risk it.
Thanks
Paul-WWGOA
I want to know more about his article . Thanks.
Rachet straps are much more effective and simplistic than weighing down the stack, out of the elements is ideal allowing a year per inch drying time, even then they should acclimate in the shop a few weeks afterwords. If outside drying is the only option, have the stock rough cut thicker an figure a much higher % of loss (firewood).
There was no mention of how long we should allow for drying. There are many variables of course, but a range of time, would have been helpful. Also, the techniques for, and the advantages and disadvantages of speeding up drying, would have been more helpful for me.
One must be careful about drying wood to quickly, it can cause all kinds of splitting and warping. The rule of thumb is to let it air dry for around a year before kiln drying.
he said he coated the ends now what kind of paint or surface protectant is the best for that
I use green wood end sealer from Woodcraft.com