Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Generally straight to slightly wavy grain; flat-sawn orientation showing characteristic wide, prominent latewood bands (growth rings); medium to coarse texture.
Color Description
Heartwood ranges from light reddish-brown to orange-yellow. Sapwood is a pale yellowish-white. The sample shows significant oxidation and graying due to surface dirt, dust, and UV exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; moderately resistant to decay but susceptible to insect attack. Strong for its weight class.
Common Uses
Residential construction, heavy timber framing, flooring, plywood, trim, and high-end joinery.
Geographic Origin
Western North America (Pacific Northwest, Rocky Mountains).
Market Value & Sustainability
Estimated Market Value
$3.00 - $6.00 per board foot (standard grade); higher for clear vertical grain (CVG).
Wood Age Estimate
20-40 years since harvest. The surface oxidation, accumulation of shop grime, and the rough-sawn edge suggest it is salvaged or reclaimed construction stock.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and FSC certified sources are common.
Workability
Works well with machine tools but requires sharp blades to avoid tearing the soft earlywood vs. hard latewood. Glues, stains, and finishes well, though large resin ducts can occasionally cause issues.
Notable Features
Distinctive resinous scent when cut; high strength-to-weight ratio; very prominent difference in hardness between light earlywood and dark latewood rings.
Finish Recommendations
Oil-based polyurethane or lacquer to highlight the grain; penetrating oils also work well, though a sanding sealer is recommended to prevent blotching.
Identification Confidence
High; the distinct transition between earlywood and latewood rings, the orange-red hue of the oxidized heartwood, and the splintering pattern on the rough edge are classic markers of Douglas Fir.