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Re: Re: wood strength of oak or fir
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Posted by David in MD on January 15, 2004 at 10:35:08 from (165.221.129.1):
In Reply to: Re: wood strength of oak or fir posted by Allan on January 15, 2004 at 09:53:50:
Here's the relative bending strenghts for 5" x 5" posts of various species from the NRAES Post-Frame Building Handbook. I would assume it would be similar for 2x4 or 2x6 lumber. Southern Yellow Pine (850 PSI) 1.0
Red Oak 0.68
White Oak 0.71
Hem-Fir 0.68
Spruce - Pine - Fir 0.59 Oak is more rigid but doesn't have the bending strength of southern yellow pine. After learning about this most of my construction is with treated southern yellow pine. It resist rot, is stronger, and is more readily available in my area.
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