Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight with prominent growth rings; coarse texture with a distinct transition from light earlywood to dark latewood. Some waviness visible in the end grain.
Color Description
Naturally light brown to reddish-brown heartwood with yellowish-white sapwood. This sample shows significant greyish-brown oxidation and weathering due to outdoor exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some resistance to rot and decay but susceptible to insect attack if untreated.
Common Uses
Heavy structural construction, framing, flooring, exterior millwork, and furniture.
Geographic Origin
Western North America (Pacific Northwest to California).
Market Value & Sustainability
Estimated Market Value
$2.00 - $4.00 per board foot depending on grade.
Wood Age Estimate
5-10 years of outdoor exposure based on deep silver-grey oxidation and surface fiber degradation.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and sustainably harvested.
Workability
Generally works well with hand and machine tools, though it can split during nailing and requires sharp blades to avoid tearing the latewood.
Notable Features
Distinctive resinous scent when freshly cut. Noted for having one of the highest strength-to-weight ratios among softwoods.
Finish Recommendations
Needs thorough sanding to remove weathered fibers. Penetrating oils or exterior stains are recommended for outdoor use.
Identification Confidence
High; based on the specific end grain growth ring patterns, prominent latewood bands, and weathering characteristics typical of structural timber.