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Log Beams and Posts

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Title: Log Beams and Posts

There's no standard yet, but here are some references from our database:

2.  "Visual Stress Grading of Wall Logs and Sawn Round Timbers Used in Log Timbers", by Edwin J. Burke, Ph.D., Univ. of Montana, BOCA Magazine, 31(2): 28-34.

     Abstract:  The author of this article, a professor of Wood Science at the Univ. of Montana's School of Forestry, explains the need for, history of and process of stress grading of logs used in the construction of log homes, and offers practical information for code officials encountering this type of construction system. Contact awcinfo(--nospam--at) for a copy.

Dr. Edwin J. Burke
Wood Science Laboratory
School of Forestry
University of Montana
Missoula, MT 59812

3.  ASTM Standard D3957-90(1996)e1 Standard Practices for Establishing Stress Grades for Structural Members Used in Log Buildings distinguishes between two types of sawn or machined timbers with different grading rules for each. Sawn Round Timbers and Wall Logs are defined.

4. International Log Builders Association
PO Box 775, Lumby, British Columbia V0E 2G0 Canada
Phone (250) 547-8776 Fax (250) 547-8775
Toll-free 1-800-532-2900
E-mail: info(--nospam--at)
ILBA has a document on their website that is primarily a construction guide. It does not contain design or building code information.

5. Timber Products Inspection
1641 Sigman Road
Conyers, GA 30012
Phone: (770) 922-8000
Fax: (770) 922-1290
TP developed and now provides a nationwide grading and gradestamping program to log home manufacturers. The TP grading rules and design values are based on the nationally recognized standard ASTM D3957.

There's a new ICC committee developing a standard for log structures. It's still in draft stage however.


Buddy Showalter, P.E.


Subject: Log Beams and Posts.
From: "Tim Spengler" <timothyps(--nospam--at)>
To: <seaint(--nospam--at)>

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What's the best reference for obtaining design information for Log Beams
and Posts?