Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight but coarse with a conspicuous growth ring transition; flat-sawn with prominent earlywood/latewood contrast and large knots exhibiting some checking.
Color Description
Heartwood is typically a light reddish-brown (visible in the fresh cut at top), while sapwood is yellowish-white. This sample shows deep silver-gray oxidation and 'driftwood' patina due to UV and moisture exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; heartwood is generally resistant to decay but susceptible to insect attack (beetles/termites).
Common Uses
Heavy construction, structural framing, flooring, plywood, trim, and exterior decking/siding.
Geographic Origin
Western North America (Pacific Northwest, Rocky Mountains)
Market Value & Sustainability
Estimated Market Value
$3.00 - $6.00 per board foot (standard grade); reclaimed timber may carry a premium.
Wood Age Estimate
The sample appears to be reclaimed material with several years (5-10+) of direct outdoor exposure based on the depth of the graying and surface erosion/checking.
Sustainability Status
Not listed on CITES Appendices or the IUCN Red List; widely available and frequently FSC-certified.
Workability
Generally works well with machines but can be prone to splintering and tear-out along the latewood lines. Glues and finishes well, though large knots can bleed resin.
Notable Features
Distinctive resinous scent when freshly cut; high strength-to-weight ratio; characteristic 'shaggy' appearance when weathered.
Finish Recommendations
For weathered look: leave as-is or apply a clear water-repellent sealer. For restoration: sand to fresh wood and apply oil-based stain or polyurethane.
Identification Confidence
High; the distinct transition between earlywood and latewood, the large tight knot, and the characteristic silver-gray weathering pattern are consistent with North American Douglas Fir.