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Re: WOOD - Engineered Lumber vs. Sawn Lumber

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1. Try building a wall on a beam with a crown on it. I've gotten a lot of
complaints from framers with regards to beams of "excessive" camber.
2. Sawn sections don't have this provision.

Bill Allen
> From: Roger Turk <73527.1356(--nospam--at)>
> To: INTERNET:seaoc(--nospam--at)
> Subject: Re: WOOD - Engineered Lumber vs. Sawn Lumber
> Date: Thursday, September 11, 1997 8:20 AM
> Wood creeps --- the reason for the 1.5 (min.) camber requirements. 
> After long term deflection, the floor/roof should (theoretically) be
> level/straight under dead load.  When calculating TL deflection of
> wood members I use 1.5DL + LL as my loading, although in this dry
> climate, 2.0DL would not be excessive.  
> A. Roger Turk, P.E.(Structural)
> Tucson, Arizona