Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Usually straight or slightly wavy with a medium-to-coarse texture. The sample shows prominent flat-sawn cathedral patterns and distinct growth rings with a visible contrast between earlywood and latewood.
Color Description
Heartwood is typically a light reddish-brown to a yellowish shade. Sapwood is a lighter cream to pale yellow. This sample shows a weathered, grayish patina indicating UV exposure, with a medium luster under the surface oxidation.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; generally resistant to decay but susceptible to insect attack. Its natural resins provide some moisture resistance.
Common Uses
Heavy structural lumber, flooring, veneers, joinery, boat building, and exterior trim.
Geographic Origin
Western North America, primarily the Pacific Northwest, extending from British Columbia to California.
Market Value & Sustainability
Estimated Market Value
$2.00 - $5.00 per board foot depending on grade (Vertical Grain vs. Construction Grade).
Wood Age Estimate
The board itself appears to be modern dimensional lumber, likely harvested within the last 10-20 years, but the surface graying suggests it has been exposed to the elements for 1-3 years.
Sustainability Status
Least Concern (IUCN). Widely available as FSC certified and managed through sustainable forestry practices in North America.
Workability
Generally easy to work with both hand and machine tools. It machines well, though it can be prone to splintering and tearout on the latewood rings. It glues and finishes well but may require a sealer to prevent blotchy staining.
Notable Features
Distinctive resinous scent when cut. Known for having one of the highest strength-to-weight ratios of any softwood species. Heartwood can contain significant resins.
Finish Recommendations
Penetrating oils or clear polyurethanes work well. If used outdoors, a UV-inhibiting sealer is recommended to prevent further graying.
Identification Confidence
High. The growth ring structure, color transition between earlywood/latewood, and typical 'cathedral' figure on this flat-sawn board are classic indicators of Douglas Fir.