DIY Frequently Asked Questions / Western Lumber')">
Known for its ease of workmanship and nailing as well as strength and dimensional stability.
Western lumber includes more than 15 commercially important Western softwood species.
Most common species are Douglas fir and Hem-fir.
Can be classified as High Quality Appearance, General Purpose Board or Radius-Edged Patio Decking Grade.
The Western Wood Products Association (WWPA) has a rigorous inspection and quality control process. Lumber with the WWPA logo indicates the lumber has passed that quality control process.
Lumber with only the “WWPA Rules” stamp indicates the lumber has been graded according to the WWPA rules, but not been inspected by WWPA.