Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Generally straight with a medium to coarse texture; visible flat-sawn cathedral patterns across the face with prominent growth rings and occasional tight knots.
Color Description
Heartwood ranges from light orange to reddish-brown; sapwood is yellowish-white. This sample shows a weathered, oxidized orange-tan patina consistent with light exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some resistance to decay but susceptible to insect attack if untreated and in ground contact.
Common Uses
Structural framing, heavy timbers, flooring, plywood, windows, doors, and exterior millwork.
Geographic Origin
Western North America (Pacific Northwest through the Rocky Mountains).
Market Value & Sustainability
Estimated Market Value
$2.00 to $4.50 per board foot depending on grade (Vertical Grain commands higher prices).
Wood Age Estimate
Approximately 20-40 years since harvest, based on the surface oxidation, checking, and mechanical wear marks on the face.
Sustainability Status
Least Concern (IUCN); widely available and frequently FSC-certified; significant plantation growth.
Workability
Generally easy to work with hand and machine tools, though it can be prone to splintering and tearout. It glues and finishes well but may require a sealer for even staining.
Notable Features
Distinctive resinous, sweet scent when cut; high strength-to-weight ratio; susceptible to surface checking under low humidity.
Finish Recommendations
Responds well to oil-based polyurethanes, shellac, or exterior-grade stains. A wood conditioner is recommended before staining to prevent blotching.
Identification Confidence
High; the color, distinct growth ring transitions, and typical knot morphology are classic indicators of Douglas Fir.