Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Generally straight or slightly wavy with a medium-to-coarse texture. Visible flat-sawn cathedral patterns are present in the central board, showing a distinct transition between earlywood and latewood.
Color Description
Heartwood is typically a light reddish-brown to orange-brown. Sapwood is much lighter, usually yellowish-white. The sample shows typical darkening/reddening due to UV exposure and age.
Hardness Rating
620 lbf (Soft)
Durability Rating
Moderately Durable; offers medium resistance to rot and decay but is susceptible to insect attack. Common for structural use.
Common Uses
Heavy structural construction (beams, glulam), flooring, veneers, cabinetry, and interior trim. Also used for boat building due to its strength-to-weight ratio.
Geographic Origin
Native to Western North America (Pacific Northwest) from British Columbia down to California and the Rocky Mountains.
Market Value & Sustainability
Estimated Market Value
$3.00 - $5.00 per board foot for select or vertical grain grades; lower for construction common grade.
Wood Age Estimate
Approximately 10-20 years since milling, based on the oxidation level and the accumulation of shop dust and surface marks.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and frequently FSC certified as a sustainable domestic softwood.
Workability
Generally works well with both hand and machine tools, though it can have a tendency to splinter or develop 'tearout' on the latewood rings. It glues and finishes well but can be difficult to stain evenly without a pre-conditioner.
Notable Features
Features a distinct, resinous, evergreen-like scent when freshly cut. It is exceptionally strong for a softwood, often used in load-bearing applications. Potential for mild respiratory irritation from sawdust.
Finish Recommendations
Polyurethane or lacquer for interior surfaces. Penetrating oils work well for a natural look, though a wood conditioner is recommended before staining to prevent blotchiness.
Identification Confidence
High; the characteristic orange-red hue, prominent growth ring definition, and flat-sawn cathedral grain are diagnostic for Douglas Fir in a North American workshop context.