Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Generally straight or slightly wavy with a prominent cathedral pattern visible due to flat-sawing; features a distinct contrast between earlywood and latewood growth rings. A small tight knot and a surface check (crack) are visible in the sample.
Color Description
Heartwood is a light reddish-brown to orange-brown color. Sapwood is yellowish-white. The color tends to darken and redden over time with exposure to UV light. High luster in the latewood bands.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; moderately resistant to decay but susceptible to insect attack. Its high resin content provides some natural protection against moisture.
Common Uses
Structural framing, heavy construction, flooring, cabinetry, interior trim, and veneer for plywood.
Geographic Origin
Western North America (Pacific Northwest, Rocky Mountains) and widely planted as a plantation timber in Europe and New Zealand.
Market Value & Sustainability
Estimated Market Value
$3.00 - $6.00 per board foot (varies significantly by grade; structural vs. vertical grain clear).
Wood Age Estimate
Modern stock, likely 0-5 years since harvest. The wood shows minimal oxidation, fresh milling marks, and is being used in a contemporary workshop setting.
Sustainability Status
Least Concern (IUCN); widely available and harvested from sustainably managed forests. FSC certification is common.
Workability
Works well with both hand and machine tools, but the transition between soft earlywood and hard latewood can cause uneven sanding. Has a tendency to splinter and can develop 'tearout' when planing against the grain. Glues and finishes well.
Notable Features
Distinctive resinous/sweet scent when cut. High strength-to-weight ratio. Can cause skin irritation or respiratory issues in sensitive individuals due to fine dust.
Finish Recommendations
Polyurethane, shellac, or lacquer are all effective. A sanding sealer is often recommended to prevent blotchiness and ensure even absorption across the growth rings.
Identification Confidence
High. The characteristic orange-red hue, the stark contrast between growth rings, the specific grain orientation, and the context of common construction lumber are diagnostic for Douglas Fir.