Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Generally straight or slightly wavy with a prominent latewood/earlywood contrast. This sample shows flat-sawn cathedral patterns and a visible tight knot. Texture is medium to coarse.
Color Description
Heartwood typically ranges from light brown to a reddish-tan; sapwood is yellowish-white. The sample shows a weathered, grayish patina indicating oxidation and light exposure, which is common in older construction lumber.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable - has moderate resistance to decay but is susceptible to insect attack if untreated.
Common Uses
Heavy structural construction (beams, veneer, flooring), boat building, and exterior joinery. This specific board appears to be a common construction-grade framing member.
Geographic Origin
Western North America (Pacific Northwest)
Market Value & Sustainability
Estimated Market Value
$1.50 - $4.00 per board foot depending on grade (clear vertical grain is significantly more expensive).
Wood Age Estimate
Approximately 10-30 years based on the degree of surface graying, oxidation, and historical saw marks visible on the rough-sawn surface.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List. Widely available and commonly FSC certified from sustainable logging operations.
Workability
Works well with both hand and machine tools, though it can be prone to splintering and tearout during machining. Responds well to glues and finishes, though resin pockets can occasionally cause issues.
Notable Features
Distinctive resinous scent when cut. It has the highest modulus of elasticity of any North American softwood, giving it excellent structural strength.
Finish Recommendations
Responds well to oil-based stains and clear coats. For outdoor use, a UV-inhibiting sealer is recommended to prevent further graying.
Identification Confidence
High - The distinct growth ring contrast, color profile under the patina, and specific knot structure are characteristic of Douglas Fir construction lumber.