Douglas Fir (with weathered exterior threshold timber)
Pseudotsuga menziesii · Softwood
- Type
- Softwood
- Origin
- Pacific Northwest of North America (Western United States and Canada).
- Hardness
- 710 lbf (Soft)
- Durability
- Moderately Durable; good natural resistance to decay, but vulnerable to prolonged direct moisture contact without sealant.
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Grain Pattern
Straight, fine to medium grain with tight, parallel growth ring lines indicating old-growth or high-grade vertical grain (quartersawn) cutting.
Color & Appearance
Warm golden-amber to reddish-brown heartwood face with clear finish yellowing. The top exposed edge shows heavy weathering to a dull grayish-brown with water staining.
Hardness (Janka)
710 lbf (Soft)
Durability & Decay Resistance
Moderately Durable; good natural resistance to decay, but vulnerable to prolonged direct moisture contact without sealant.
Value & Sustainability
- Estimated Market Value
- $4.00 - $8.00 per board foot for high-grade vertical grain clear Douglas Fir.
- Wood Age Estimate
- Estimated 20-40 years old based on surface oxidation, finish breakdown, fastener holes, and atmospheric graying on top edge.
- Sustainability Status
- Least Concern (IUCN Red List). Widely available and sustainably managed, FSC-certified supply available.
Common Uses
Window and door frames, thresholds, structural timber, exterior siding, flooring, and millwork.
Geographic Origin
Pacific Northwest of North America (Western United States and Canada).
Workability
Works very easily with both hand and power tools; holds nails and screws well, though moderate tendency to split along growth rings if not pre-drilled near edges.
Finish Recommendations
Requires thorough sanding to remove oxidized fibers and water stains; seal with exterior-grade spar varnish, polyurethane, or penetrating oil-based exterior finish.
Notable Features
Distinctive resinous pine-like scent when freshly worked, excellent strength-to-weight ratio, sharp contrast between earlywood and latewood rings.
