Where can I learn more about the preservatives that are used to treat pressure-treated wood?
The American Wood Protection Association standards provide a list of standardized preservative formulations in the US. The AWPA’s is recognized worldwide, as their ANSI accredited process thoroughly evaluates reviews and standardizes preservatives. AWPA standardized preservatives are approved by all building codes for their intended uses. Visit AWPA.com and their Technical and References sections for Homeowners, Specifiers, Builders and Retailers for more information.