Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight to wavy grain with a medium to coarse texture; visible growth rings and circular knots indicate a flat-sawn or rough-cut common grade board.
Color Description
Light brown to reddish-brown heartwood with a narrower yellowish-white sapwood. Shows characteristic darkening to a deeper reddish-tan with light exposure and age.
Hardness Rating
660 lbf (Soft to Medium-Soft)
Durability Rating
Moderately Durable; offers some resistance to decay but is susceptible to insect attack.
Common Uses
Heavy structural lumber, framing, flooring, plywood, trim, and exterior joinery.
Geographic Origin
Western North America (Pacific Northwest, Rocky Mountains)
Market Value & Sustainability
Estimated Market Value
$2.50 - $4.00 per board foot for standard construction/industrial grade.
Wood Age Estimate
Newer stock, likely less than 2-5 years old since milling, based on light oxidation and fresh circular saw marks.
Sustainability Status
Not listed on CITES Appendices or the IUCN Red List; widely available and considered sustainable with FSC certification common.
Workability
Works easily with both hand and machine tools; can experience tearout during planing and is prone to splintering. Glues and finishes well, though paints may require a sealer due to resin.
Notable Features
Distinctive resinous scent when cut; high strength-to-weight ratio; presence of prominent latewood bands creates a striking contrast in grain.
Finish Recommendations
Penetrating oils or polyurethane are recommended; requires a sanding sealer or wood conditioner to prevent blotching if staining.
Identification Confidence
High; the combination of reddish-brown hue, distinct growth ring transitions, knot structure, and rough-sawn surfacing is diagnostic for Douglas Fir.