Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Primarily straight grain with visible growth ring lines. This flat-sawn sample shows a slight cathedral figure transitioning toward the bottom and characteristic dark resin streaks.
Color Description
Light brown to reddish-brown heartwood with a distinct yellow-orange hue in this aged sample. Sapwood is typically lighter and yellowish. Color tends to darken to a deeper reddish-brown with age and UV exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some resistance to rot and insects, but much less than cedar or redwood.
Common Uses
Structural framing, heavy timbers, flooring, window frames, doors, millwork, and veneer.
Geographic Origin
Western North America (Pacific Northwest, Rocky Mountains).
Market Value & Sustainability
Estimated Market Value
$3.00 - $7.00 per board foot (Clear Grade).
Wood Age Estimate
20-40 years (based on the warm amber oxidation and style of vertical trim/mullion).
Sustainability Status
Least Concern (IUCN); widely available and harvested from sustainably managed forests frequently carrying FSC certification.
Workability
Generally easy to work with both hand and machine tools, though it can be prone to splintering and tearout. It glues and finishes well but may require a sealer for even staining.
Notable Features
Distinctive resinous scent when cut; one of the highest strength-to-weight ratios of any softwood; clear resin pockets or streaks are common.
Finish Recommendations
Clear polyurethane or lacquer to preserve the natural color; a wood conditioner is recommended if using dark stains to prevent blotchiness.
Identification Confidence
High; the reddish-orange hue, prominent latewood lines, and specific resin streak patterns are diagnostic for Douglas Fir in a North American architectural context.