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Re: Wood design values for old structure

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I typically tell the client that a sample of wood needs to be removed for species identification and testing for strength properties. Anything else will be guesswork. A highly professional company I typically use and recommend is Wood Advisory Services (see, contact Al DeBonis. Although they are located in Millbrook, NY, the sample can be shipped.
James Cohen, PE
James Cohen Consulting, PC
----- Original Message -----
Sent: Thursday, May 19, 2005 01:38 PM
Subject: Wood design values for old structure

We are looking at a building built about 100 years ago in SW Missouri and are wondering what strength values we can use to analyze the wood framing.  There is a lot of Oak in this area, so the framing may be Oak (that was once somewhat common), but other likely species we might encounter would be Doug-Fir, Southern Pine, D-F-L and S-P-F.  Does anybody have any values for old wood we can use for analyzing the joists, beams, studs and columns in this old structure?



Bruce D. Holcomb, PE, SE

Structural Engineer & Vice President

Butler, Rosenbury & Partners

319 North Main, Suite 200

Springfield, MO 65806