Results 1 to 7 of 7

Thread: Drying lumber

  1. #1
    Join Date
    Dec 2006
    Location
    Oliver Springs, TN
    Posts
    1,726

    Drying lumber

    I had some oak and pine cut last December. I checked the moisture today with a meter and the pine was in the 8 to 12% range and the oak was 14 to 18%.

    My shop/garage isn't humidity controlled. If I bring some of the wood in how much dryer can I expect the wood to get?

  2. #2
    Join Date
    Oct 2006
    Location
    somewhere east of Queen Creek, AZ - South East of Phoenix
    Posts
    8,529
    John I believe it will depend on the humidity in the area you live in. Here in Arizona I would expect you could achieve 6-8% where your at I would expect a little higher.
    "There’s a lot of work being done today that doesn’t have any soul in it. The technique may be the utmost perfection, yet it is lifeless. It doesn’t have a soul. I hope my furniture has a soul to it." - Sam Maloof
    The Pessimist complains about the wind; The Optimist expects it to change;The Realist adjusts the sails.~ William Arthur Ward

  3. #3
    Join Date
    Mar 2008
    Location
    NH
    Posts
    4,005
    If it was me I would stick and cover that oak and forget about it for the next 4 or so years.
    The pine should come down to what ever the humidity in your shop is in a month or so.
    It could be worse You could be on fire.
    Stupid hurts.

  4. #4
    Join Date
    Sep 2010
    Location
    Southern, Illinois
    Posts
    106
    John-
    It sounds like the wood has hit EMC (equilibrium moisture content) for your area. It's not going to get much dryer without external forces acting upon it. Bringing it inside will do the trick, but it may take some time.

  5. #5
    Join Date
    Dec 2006
    Location
    Oliver Springs, TN
    Posts
    1,726
    Here's an idea I've been mulling around for awhile. I've got an unfinished basement that is conditioned. My idea is to bring some of the wood in the basement and build a tent from plastic around the wood. I'd make the tent larger than the wood stack for air movement. I would then put a dehumidifier inside. Do you think this would pull the moisture down to a more usable amount?

  6. #6
    Join Date
    Sep 2010
    Location
    Southern, Illinois
    Posts
    106
    yes sir! I plan on doing something similar, but using left over SIP panels to build a chamber.

    Here is a good read on the subject. May as well read it. You paid for it...tax dollars at work!

    Operation and Cost of a Small Dehumidification Dry Kiln
    http://www.fpl.fs.fed.us/documnts/fplrn/fpl_rn310.pdf

  7. #7
    Join Date
    Feb 2007
    Location
    Westphalia, Michigan
    Posts
    955
    As i understand it, Kiln drying will set the sap and change the cellular structure of the wood making it more stable and less likely to take in moisture. The drying temperature varies by species and thickness.

    Bringing air dried lumber into your shop where it is warmer and generally dryer during the winter months should drop the moisture content.

    I have toyed with the idea of building a small kiln next to my barn and heating it with my outdoor wood boiler which is set @ 180 Degrees F. A small fan to circulate the air should get the moisture content down to 6%. I think 180 degrees is high enough to set the sap. It will kill any bugs at any rate.
    I'm a certifiable tree hugger. (it's a poor mans way of determining DBH before cutting the tree down)

Similar Threads

  1. Kiln drying help
    By Mike Frencel in forum General Woodworking Q&A
    Replies: 4
    Last Post: 12-03-2013, 11:43 PM
  2. Drying/stacking lumber question
    By Mike Frencel in forum General Woodworking Q&A
    Replies: 2
    Last Post: 11-30-2013, 12:29 AM
  3. Lumber milling and drying.
    By Rex Bloem in forum General Woodworking Q&A
    Replies: 5
    Last Post: 10-13-2010, 02:41 AM
  4. Another Drying Technique
    By Dan Mosley in forum Turning Tool Questions and Show & Tell
    Replies: 0
    Last Post: 11-10-2008, 05:54 AM
  5. Drying
    By Chris Stokes in forum General Woodturning Q&A
    Replies: 12
    Last Post: 10-23-2008, 06:55 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •