When building applications require contact with the ground, such as burying posts in the soil, setting in concrete, or other ground contact functions, choose from Coos Head’s structural timbers and dimension lumber treated appropriately for ground contact use. Products receive Cedartreat® treatment, or CCA, depending upon application. Choose from Hem fir or Douglas-fir.

Preserve® lumber preservative is a waterborne, alkaline copper quaternary (ACQ) preservative system developed to provide long-term protection of wood exposed in exterior applications, such as landscaping, fencing, and retaining walls.