Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Predominantly straight grain with prominent, tight growth rings. The sample shows a flat-sawn face with some cathedral-like patterns near the knots and earlywood/latewood transitions.
Color Description
Heartwood ranges from light brown to a reddish-orange hue with lighter tan sapwood. It exhibits a moderate natural luster and typically darkens to a more pronounced reddish-brown or yellowish-brown over time with UV exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some natural resistance to rot and decay, though it is susceptible to termite attack and should be treated for ground-contact use.
Common Uses
Heavy structural timber, framing, flooring, cabinetry, interior trim, veneer, and plywood manufacturing.
Geographic Origin
Western North America, particularly the Pacific Northwest from British Columbia to California.
Market Value & Sustainability
Estimated Market Value
$3.00 - $6.00 per board foot depending on grade (Vertical Grain commands a higher premium).
Wood Age Estimate
20–40 years post-harvest. The surface displays significant oxidation, dirt accumulation, and mechanical wear consistent with reclaimed joists or subflooring from mid-20th-century construction.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available with FSC certification and considered highly sustainable due to large-scale reforestation.
Workability
Generally easy to work with both hand and machine tools, though it has a tendency to splinter or develop tearout during planing on the latewood bands. Glues and finishes well but may require a sanding sealer for even staining.
Notable Features
Distinctive resinous scent when freshly cut. It has one of the highest strength-to-weight ratios among softwoods and contains high resin content which can gum up sandpaper.
Finish Recommendations
Clear polyurethane or lacquer to highlight the natural grain; penetrating oils also work well, but a wood conditioner is recommended if using dark stains to prevent blotchiness.
Identification Confidence
High; the distinct transition between earlywood and latewood (prominent rings), reddish-orange hue, and visible knots are classic morphological characteristics of Douglas Fir utility-grade lumber.