(New, less toxic treatment, offered since 2004)

To replace CCA-treated wood, the market now offers the treated lumber which is significantly less toxic, as its preparation is made from other chemicals. We find the treated alkaline copper quaternary (ACQ) or copper azole (CBA), proven products for over 15 years wood. However, depending on its use and the degree of resistance to degradation, this wood can be 15 to 35% more expensive than CCA-treated wood. The purpose of this treatment is to protect wood against insects, fungi and other microorganisms which might cause mold.

ACQ Wood by Patio Design inc. ACQ Wood by  Patio Design inc. ACQ Wood by Patio Design inc.