Douglas Fir
Pseudotsuga menziesii · Softwood
- Type
- Softwood
- Origin
- Western North America and the Pacific Northwest.
- Hardness
- 710 lbf (Soft)
- Durability
- Moderately Durable with fair resistance to decay, though vulnerable to insect attack over time if untreated.
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Grain Pattern
Straight grain with distinct growth rings and a prominent knot structure visible on the cross-section end grain.
Color & Appearance
Light reddish-brown to yellowish-brown heartwood with lighter yellowish sapwood, weathering to a greyish patina upon exposure to UV light.
Hardness (Janka)
710 lbf (Soft)
Durability & Decay Resistance
Moderately Durable with fair resistance to decay, though vulnerable to insect attack over time if untreated.
Value & Sustainability
- Estimated Market Value
- Moderate, approximately $3.00 to $6.00 per board foot depending on grade.
- Wood Age Estimate
- Estimated between 30 to 50 years based on growth ring count visible on the cross-section.
- Sustainability Status
- Not CITES listed and generally of least concern according to the IUCN; widely available from sustainably managed plantations.
Common Uses
Construction framing, plywood, heavy timber construction, flooring, and exterior decking.
Geographic Origin
Western North America and the Pacific Northwest.
Workability
Generally works well with both hand and machine tools, though knots can present challenges and cause dulling.
Finish Recommendations
Accepts stains, varnishes, and exterior finishes well, though UV-resistant finishes are recommended for outdoor use.
Notable Features
High strength-to-weight ratio, distinct contrast between earlywood and latewood growth rings, and a slight resinous scent.
