Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight to slightly wavy grain with distinct, sharp growth ring transitions; flat-sawn orientation visible with prominent latewood bands and a medium-sized knot.
Color Description
Heartwood is light reddish-brown, sapwood is yellowish-white. This sample shows a weathered tan-orange patina with some grayish surface oxidation and green algae/mold staining.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; moderately resistant to decay but susceptible to insect attack without pressure treatment.
Common Uses
Residential construction, heavy timber framing, flooring, plywood, and exterior trim.
Geographic Origin
Western North America (Pacific Northwest)
Market Value & Sustainability
Estimated Market Value
$1.50 - $4.00 per board foot depending on grade
Wood Age Estimate
The wood is likely 10-30 years old based on the oxidation and surface weathering marks, appearing to be part of an older construction project.
Sustainability Status
Least Concern (IUCN); widely available as FSC certified and managed through sustainable forestry.
Workability
Generally easy to work with both hand and machine tools, though it can splinter easily and the transition between hard latewood and soft earlywood can cause uneven planning.
Notable Features
Distinctive resinous scent when cut; has a high strength-to-weight ratio among softwoods.
Finish Recommendations
Penetrating oil or film-forming exterior stains; if used for interior, polyurethane or lacquer. Requires sanding to remove surface oxidation before finishing.
Identification Confidence
High; the wide, dark latewood bands, reddish-orange heartwood tone, and overall texture are characteristic of Douglas Fir construction lumber.