What are the alternative types of treated wood for residential use?
As health concerns about CCA increased, non-arsenic copper-based treatments were developed and introduced in the marketplace. Depending on your location and intended use of the wood, there may be one or more alternative types of treated wood available for residential use. This listing describes only preservatives that have been evaluated and standardized by the American Wood-Preservers’ Association (AWPA), which is the primary standard-setting body for pressure-treated wood. To become standardized by the AWPA, preservative-treated wood must undergo a series of rigorous tests to ensure its durability. Be wary of purchasing wood that has been treated with a preservative that has not been standardized for that application by the AWPA or some other major standard-setting body, such as ASTM International. Keep in mind that various suppliers may sell the same type of treated wood by different trade names and that you may need to ask the supplier for more information to determine the preserva
