Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Generally straight to slightly wavy grain; flat-sawn pieces exhibit a prominent cathedral figure due to the sharp contrast between earlywood and latewood. The transition between growth rings is abrupt.
Color Description
Heartwood is typically a light reddish-brown, while the sapwood is a pale yellowish-white. The wood tends to darken and redden over time when exposed to light, developing a distinctive warm patina.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some resistance to rot and decay, though it is susceptible to insect attack (such as beetles and termites) without treatment.
Common Uses
Heavy construction, framing, glulam beams, flooring, cabinetry, interior trim, and exterior millwork.
Geographic Origin
Western North America, particularly the Pacific Northwest from British Columbia to California.
Market Value & Sustainability
Estimated Market Value
$2.50 to $6.00 per board foot depending on grade (Vertical Grain/Clear vs. Construction Grade).
Wood Age Estimate
The visible oxidation and surface dust suggest these boards have been air-drying or in storage for approximately 1-3 years.
Sustainability Status
Not listed in CITES Appendices or the IUCN Red List; widely available and frequently harvested from sustainably managed forests with FSC certification.
Workability
Generally works well with both hand and machine tools, though it can be prone to splintering and tearout if tools are not sharp. It glues, stains, and finishes well, though a sealer is recommended to prevent blotching.
Notable Features
Features a distinct resinous, pine-like scent when freshly cut. It has one of the highest strength-to-weight ratios among softwoods and high resin content that can occasionally bleed through finishes.
Finish Recommendations
Penetrating oils or polyurethane are recommended. Due to the high resin content and uneven density, a wood conditioner or sanding sealer is often necessary for uniform staining.
Identification Confidence
High; the identification is based on the distinct reddish-brown heartwood, the sharp contrast in growth ring transition visible on the end grain, and the specific splintering patterns common to Douglas Fir.