Characteristics of butt log lumber
Denser, darker wood than the rest of that from the same laod may be from butt logs. 1998.
by Professor Gene Wengert
I dry red oak in a kiln using an Ebac dryer. It is about a 1000 bd.ft. kiln with enough air flow to maintain 110 degrees. The problem I am having is this: several boards, when they are planed, seem to be darker and harder than the rest (10 %). Is this just in the wood itself or is there a problem?
I suspect that you have some lumber from a butt log that is much denser than normal, but this is just a guess. We do find that butt logs have darker color too. It is not a kiln problem.
Professor Gene Wengert is Extension Specialist in Wood Processing at the Department of Forestry, University of Wisconsin-Madison.
Click on Wood Doctor Archives to peruse past answers.
If you would like to obtain a copy of "The Wood Doctor's Rx", visit the Wood Education and Resource Center Web site for more information.
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: Wood Identification
KnowledgeBase: Primary Processing: Kiln Operation
KnowledgeBase: Primary Processing: Lumber Grading
KnowledgeBase: Wood Engineering: Wood Properties
KnowledgeBase: Forestry: Timber Harvesting
KnowledgeBase: Knowledge Base
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.
335 Bedell Road
Montrose, PA 18801
Copyright © 1996-2018 - WOODWEB ® Inc.