Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight with prominent earlywood-latewood contrast, showing cathedral figure and tight knots (flat-sawn)
Color Description
Light reddish-tan to yellowish-brown heartwood with cream-colored sapwood. Latewood is significantly darker than earlywood. Reddens with age and light exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable to Slightly Durable regarding decay resistance; susceptible to insect attack
Common Uses
Structural construction, heavy timber framing, flooring, exterior millwork, window and door frames, and veneer
Geographic Origin
Western North America (Pacific Northwest through the Rocky Mountains)
Market Value & Sustainability
Estimated Market Value
$3.00 - $6.00 per board foot depending on grade and seasoning
Wood Age Estimate
Approximately 20-40 years since harvest based on oxidation and wear; however, tree age rings suggest growth from a standard secondary-growth forest.
Sustainability Status
Not listed on CITES Appendices or the IUCN Red List. FSC certification is widely available. Generally considered sustainable.
Workability
Works well with machines but can be prone to tearing/splintering. Glues, stains, and finishes well, though latewood can resist penetration. High silica content can dull blades.
Notable Features
Distinctive resinous scent when cut. Very high strength-to-weight ratio for a softwood. Large transition between earlywood and latewood makes it very abrasive to sandpaper.
Finish Recommendations
Polyurethane or oil-based varnishes work well. A sanding sealer or pre-stain conditioner is recommended to prevent blotchiness.
Identification Confidence
High. The characteristic reddish-orange hue, sharp transition between light earlywood and dark latewood bands, and the appearance of the small tight knots are classic Douglas Fir indicators.