Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight grain with a medium to coarse texture. This sample displays flat-sawn characteristics with significant contrast between earlywood and latewood rings, though it shows some rift-sawn orientation on the side face.
Color Description
Light brown to reddish-brown heartwood with a narrow, pale yellowish sapwood. It typically darkens and reddens with age and exposure to UV light, developing a warm 'pumpkin' patina.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable regarding decay resistance; susceptible to insect attack. It is highly valued for structural stability.
Common Uses
Structural framing, heavy timbers, flooring, boat building, exterior joinery, and plywood veneer.
Geographic Origin
Western North America (Pacific Northwest)
Market Value & Sustainability
Estimated Market Value
$1.50 - $4.00 per board foot (standard vertical grain or clear grades priced higher)
Wood Age Estimate
The sample appears to be modern construction grade lumber, likely cut within the last 5-10 years, showing typical oxidation from shop storage.
Sustainability Status
Least Concern (IUCN); widely available with FSC certification and harvested from well-managed forests.
Workability
Generally works well with hand and machine tools, though it can be prone to splintering and tearout during machining. It glues, stains, and finishes well, though the hard latewood lines can cause uneven staining.
Notable Features
Distinctive resinous scent when cut; high strength-to-weight ratio; marked difference in hardness between the light earlywood and dark latewood rings.
Finish Recommendations
Penetrating oils or polyurethane work best. If staining, a pre-stain wood conditioner is recommended to prevent blotching and uneven absorption between growth rings.
Identification Confidence
High. The prominent growth ring contrast, color, and vertical grain orientation on the edge are classic indicators of Douglas Fir lumber commonly used in North American construction.