Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight grain with distinct, prominent latewood bands. Flat-sawn orientation showing wide, sweeping growth ring arcs on the end grain.
Color Description
Light brown to reddish-brown heartwood with a paler yellowish sapwood. It features high contrast between light earlywood and dark latewood; darkens to a more orange-red hue with UV exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; heartwood is resistant to decay but susceptible to insect attack. Excellent strength-to-weight ratio for a softwood.
Common Uses
Heavy structural lumber, flooring, trim, doors, window frames, and plywood. Frequently used in residential construction and timber framing.
Geographic Origin
Western North America (Pacific Northwest)
Market Value & Sustainability
Estimated Market Value
$2.50 - $5.00 per board foot depending on grade (clear vertical grain commands higher prices).
Wood Age Estimate
Relatively recent/modern. The clean, light color and lack of deep oxidation or graying suggest a sample under 5-10 years old.
Sustainability Status
Least Concern (IUCN); widely available as FSC certified and managed in sustainable plantations.
Workability
Generally works well with machine tools, though it can be prone to splintering and tearout during machining. Resists gluing well and takes nails/screws easily.
Notable Features
Distinctive resinous, sweet odor when worked. Known for being one of the strongest softwoods available globally. Often shows 'dimples' on split surfaces.
Finish Recommendations
Takes clear coats, oils, and sealers well. Because of the resin content and density difference between earlywood and latewood, a wood conditioner is recommended before staining to prevent blotching.
Identification Confidence
High. The prominent growth rings, reddish-tan coloration, and coarse texture are characteristic of Douglas Fir, distinguishing it from lighter pines or hemlock.