Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Pronounced flat-sawn cathedral grain with visible earlywood/latewood contrast; straight grain in non-nodal areas with frequent small sound knots.
Color Description
Heartwood varies from light reddish-brown to a yellowish-tan color; sapwood is yellowish-white. It darkens significantly with age and light exposure (patina).
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some resistance to decay but is susceptible to insect attack without treatment.
Common Uses
Heavy structural timber, dimensional construction lumber, flooring, plywood veneer, joinery, and boat building.
Geographic Origin
Western North America (Pacific Northwest, Rocky Mountains) and widely planted in Europe and New Zealand.
Market Value & Sustainability
Estimated Market Value
Approximately $2.50 to $5.50 per board foot depending on grade (Vertical Grain/Clear commands higher prices).
Wood Age Estimate
Relatively recent/modern (less than 10-20 years) based on lack of heavy oxidation and clean, light coloring of the surface fibers.
Sustainability Status
IUCN Least Concern; widely available and frequently FSC certified; sustainable through managed plantations.
Workability
Generally easy to work with machines, but prone to splintering and tearout during planing of earlywood. Holds nails and screws well; glues effectively.
Notable Features
Distinctive resinous scent when cut; high strength-to-weight ratio for a softwood; high resin content can occasionally cause finishing issues.
Finish Recommendations
Polyurethane or lacquer for protection; penetrating oils for aesthetics; use a wood conditioner/sealer before staining to prevent blotchiness.
Identification Confidence
High; the distinct 'flame' cathedral pattern, the color transition from light tan to reddish-pink, and the specific knot structure are classic Douglas Fir indicators.