Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Flat-sawn with prominent, alternating earlywood and latewood growth rings, demonstrating a straight to wild cathedral pattern with چندین sound, tight knots.
Color Description
Heartwood is a warm reddish-brown to orange hue, showing distinct contrast with lighter yellowish sapwood. It darkens significantly over time into a deep amber-brown upon light exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; has decent natural resistance to rot but is susceptible to insect attack and requires treatment for direct ground contact.
Common Uses
Structural framing, heavy timber construction, flooring, boat building, exterior trim, and plywood/veneer manufacturing.
Geographic Origin
Western North America (principally the Pacific Northwest)
Market Value & Sustainability
Estimated Market Value
$2.50 - $5.50 per board foot depending on structural vs appearance grade.
Wood Age Estimate
Estimated 20-40 years old based on deep longitudinal checking, localized oxidation, and partial silver-grey weathering on the top face.
Sustainability Status
Not listed on CITES Appendices or the IUCN Red List; widely managed and harvested sustainably with extensive FSC certification availability.
Workability
Generally easy to work with hand and machine tools, though the hard latewood bands can cause tool deflection. Prone to splitting when nailed close to edges; glues and finishes well.
Notable Features
Features a distinct, sweet resinous scent when freshly cut and possesses an exceptionally high strength-to-weight ratio for a softwood.
Finish Recommendations
Prone to blotching due to density differences between growth rings; use a pre-stain wood conditioner before applying oil-based stains, or finish with a clear polyurethane to highlight the natural orange-red tones.
Identification Confidence
Medium; the characteristic dense latewood bands, warm orangey coloration, distinct structural checking, and knot patterns are classic markers for Douglas Fir, though certain structural pines can look similar.