IHE EUIDENCE IS CTEAR. BUI FOR SOME |IIU$ DOESNT SEETN IO PENEIRATE.

ou can't blame them for trying. First they told you Douglas fir could be sufificiently protected by "treating to refusal." Then they tried to convince you that high-density incising would help. Sometimes this works with 2 x 4 or 2 x 6 but if your job specifies larger dimensional material, high-density incising is not the answer. The fact is that efforts to protect Douglas fir lumber with any CCA pressure treatment practice generally prove unsuccessful.

Unfortunately, there have been instances of structural failurex as well. So local and state building officials are on the lookout for insufficiently treated Douglas fir lumber resulting from misinterpretations of the AWPA standards.

Wise specifiers and buyers know the answer. It's Chemonite! The only waterborne pressure treatment available to penetrate Douglas fu up to 2.50# pcf to assure structural integrity and comoliance with AWPA standards.