Pressure treated lumber was introduced in the 1940s but early preservative formulas included arsenic. In the 1980s, newer and safer formulas were developed and PT lumber because the industry go-to answer.
It was great to meet and speak directly with NADRA members at the Atlanta meeting. We look forward to working with the organization, and encouraging communication within our industry. Koppers believes it is important to provide a unified source of information for deck building professionals to learn more about the use [...]