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Pressure Treated Wood

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Contact the American Wood Preservers Institute, 2750 Prosperity Avenue, Suite 
550, Fairfax, Virginia  22031 Phone (703) 204-0500, Fax (703) 204-4610, Web 
Site at: http://www.awpi.org.

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

James F. Fulton wrote:

. > What specs apply to pressure treating wood ? I see tags on landscaping 
. > members like 6x6x8 that say "Ground Contact", "0.40 PCF", and "CCA-C". I 
. > assume this means the wood contains chromated copper arsenate at the rate 
. > of .4 lbs of cca per cubic foot of wood. Are there applications that 
. > require would a higher rate of cca ? Thanks.