Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight to wavy grain with a flat-sawn cathedral pattern visible. Typical prominent growth rings with a distinct transition between light earlywood and darker latewood.
Color Description
Heartwood ranges from light reddish-brown to a yellowish-tan. Sapwood is yellowish-white. It tends to darken or redden significantly upon exposure to light and age.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some resistance to decay but is susceptible to insect attack. Fairly resistant to rot when kept dry.
Common Uses
Heavy construction, framing, flooring, plywood/veneers, boat building, and exterior joinery.
Geographic Origin
Western North America (Pacific Northwest)
Market Value & Sustainability
Estimated Market Value
$2.50 to $5.50 per board foot depending on grade (clear vertical grain is higher value).
Wood Age Estimate
Modern cut (recent processing), likely less than 5 years old based on the lack of deep oxidation or heavy patina.
Sustainability Status
Least Concern (IUCN); widely available and harvested from sustainably managed forests; FSC certification common.
Workability
Generally easy to work with both hand and machine tools, though it can splinter or tear out if tools are dull. Glues, stains, and finishes well.
Notable Features
Distinctive resinous scent when cut. Known for having one of the highest strength-to-weight ratios among softwoods.
Finish Recommendations
Polyurethane or lacquer are best for protection. Resists stains somewhat unevenly; a sanding sealer or pre-stain conditioner is recommended for a uniform look.
Identification Confidence
High; the characteristic cathedral grain pattern, distinct color transition between growth rings, and reddish-tan hue are classic indicators of Douglas Fir.