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Re: Plywood shear walls with 3x sills...

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Tom Liberty wrote:

>>Another option is for the lumber yards to rip 4x6 PT into 3x4's.<<

A problem with this is that preservative in a pressure treated member does 
not necessarily penetrate the member completely.  Ripping a 4 X 6 will expose 
untreated wood or portions of the wood that have inadequate treatment.

A. Roger Turk, P.E.(Structural)
Tucson, Arizona