Green white oak for fencing?

      Using unseasoned white oak as fencing for a horse pasture. August 10, 2000

Q.
How soon would 4/4-by-6-by-8 white oak boards be ready to use as a horse fence? I have been told that right off the mill is O.K. Is it more prone to warping?



It is common to use green lumber for applications like fencing. Whether it is a good idea for you depends on exactly what you're doing and what your expectations are.

Because these boards will be largely unrestrained as they dry (compared to being in a stickered pile of lumber), they will be freer to move as they respond to stresses. Because the air circulation around them will be tremendous, they will dry very quickly, at least on the outside. And since this is oak, they will likely surface check heavily at the rays.

Is this a problem? I dunno, it depends on you. The warping is relative. They're not going to jump off the fence (at least most won't), but they will probably warp more than they would if they were dried in a stack first. On the other hand, if they're low-grade oak, which I would presume they are, some of them will move around pretty substantially even if they're in a stack.

On the third hand (if I had one), whatever warping you will get will probably only be noticeable by passersby when they're in a position to look straight down the fence, when every deviation from linear is visible.

Consider weather and how you intend to finish the fence. If you will be painting it, think about air-drying first. You shouldn't paint green lumber because the moisture in it will cause the paint to peel. If you put it up green and then paint it once it's dry, the surface checks that will open up at the rays from too-rapid drying will be difficult to seal effectively, and when water inevitably works its way in there, again, the paint will fail. If it will be allowed to weather unfinished, this doesn't really matter.

I personally have never built fences out of white oak, but I've built a lot of horse stalls out of green oak, in fact I built a 40-by-44 two-story horse barn out of it. Framing with white oak must be done with green lumber because it's too hard to nail once it dries (darn near too hard green, for that matter). At any rate, green lumber works fine for stalls. I've usually used 2-by-6 or 2-by-8.

The only other issue I'd raise is that green lumber is much more flexible than dried lumber, and if it's put under too much stress while it's green, it will "take a set," meaning it will dry in a deflected (bent) form -- the same principle at work in green-bending chair parts.

If you're using 4/4-by-6 material in only 8-foot lengths and the only load is the board's own weight, then there shouldn't be a problem, provided the boards are installed on edge, as I presume they will be.



Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?


Have you reviewed the related Knowledge Base areas below?
  • KnowledgeBase: Lumber & Plywood: Buying

  • KnowledgeBase: Wood Engineering: Wood Properties

  • KnowledgeBase: Knowledge Base


    Would you like to add information to this article? ... Click Here

    If you have a question regarding a Knowledge Base article, your best chance at uncovering an answer is to search the entire Knowledge Base for related articles or to post your question at the appropriate WOODWEB Forum. Before posting your message, be sure to
    review our Forum Guidelines.

    Questions entered in the Knowledge Base Article comment form will not generate responses! A list of WOODWEB Forums can be found at WOODWEB's Site Map.

    When you post your question at the Forum, be sure to include references to the Knowledge Base article that inspired your question. The more information you provide with your question, the better your chances are of receiving responses.

    Return to beginning of article.



    Refer a Friend || Read This Important Information || Site Map || Privacy Policy || Site User Agreement

    Letters, questions or comments? E-Mail us and let us know what you think. Be sure to review our Frequently Asked Questions page.

    Contact us to discuss advertising or to report problems with this site.

    To report a problem, send an e-mail to our Webmaster

    Copyright © 1996-2014 - WOODWEB ® Inc.
    All rights reserved. No part of this publication may be reproduced in any manner without permission of the Editor.
    Review WOODWEB's Copyright Policy.

    The editors, writers, and staff at WOODWEB try to promote safe practices. What is safe for one woodworker under certain conditions may not be safe for others in different circumstances. Readers should undertake the use of materials and methods discussed at WOODWEB after considerate evaluation, and at their own risk.

    WOODWEB, Inc.
    335 Bedell Road
    Montrose, PA 18801

    Contact WOODWEB











  • WOODWEB - the leading resource for professional woodworkers


      Home » Knowledge Base » Knowledge Base Article