Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight grain with prominent, tight growth rings. The face grain shows a classic cathedral pattern typical of flat-sawn softwood lumber with distinct earlywood/latewood contrast.
Color Description
Heartwood is typically a light reddish-brown, while the sapwood is yellowish-white. This sample shows surface graying and weathering with significant darkening on the end grain due to oxidation and dirt.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; Douglas Fir is known for having a good strength-to-weight ratio and decent resistance to decay, though it is susceptible to insect attack if not treated.
Common Uses
Residential and commercial construction, heavy timbers, flooring, plywood, and utility poles.
Geographic Origin
Western North America, primarily the Pacific Northwest and Rocky Mountain regions.
Market Value & Sustainability
Estimated Market Value
$1.50 to $3.00 per board foot depending on grade (Utility vs. Select Structural).
Wood Age Estimate
Based on the rough-sawn texture and surface weathering, the timber appears to have been cut 5-10 years ago and stored outdoors.
Sustainability Status
Not listed in the CITES Appendices or on the IUCN Red List; widely available as FSC-certified timber.
Workability
Generally works well with both hand and machine tools, though it can be prone to splintering and tearout. It holds nails and screws well but may require pre-drilling near ends.
Notable Features
Distinctive resinous/sweet scent when freshly cut. It is one of the strongest softwoods available globally.
Finish Recommendations
External penetrating oils or solid stains for outdoor use; polyurethane or lacquer for indoor furniture after significant sanding.
Identification Confidence
High. The growth ring structure, reddish-brown heartwood visible under the weathering, and the typical structural dimensions are characteristic of Douglas Fir.