Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Generally straight and plain with a medium to coarse texture. Flat-sawn faces show characteristic cathedral grain with prominent growth ring transitions. Presence of tight knots and some surface checking typical of timber-grade cuts.
Color Description
Heartwood is typically a light reddish-brown to orange-brown. Sapwood is a lighter yellowish-white. The wood tends to darken and redden significantly with age and UV exposure, resulting in the warm orange-brown patina seen in these timbers.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; resistant to decay but susceptible to insect attack. Stronger and stiffer than most other softwoods of similar weight.
Common Uses
Heavy construction, timber framing, flooring, plywood/veneer, joinery, and boat building.
Geographic Origin
Western North America (Pacific Northwest)
Market Value & Sustainability
Estimated Market Value
$3.00 - $6.00 per board foot depending on grade and reclamation status.
Wood Age Estimate
The timbers appear to be older 'rough-sawn' stock, likely several decades old based on the deep oxidation (graying/reddening), checking, and surface patina. They do not appear to be fresh mill stock.
Sustainability Status
Not listed on CITES Appendices or the IUCN Red List; widely available and generally considered sustainable with FSC certification common.
Workability
Works well with machine tools but can be prone to splintering and tearout if tools are not sharp. Holds nails and screws well; glues and finishes satisfactorily.
Notable Features
Features a distinct resinous, sweet scent when cut. Known for having one of the highest strength-to-weight ratios among softwoods. May exude resin if used in high-heat environments.
Finish Recommendations
Penetrating oils or polyurethane are recommended for protection. If staining, a pre-stain wood conditioner is advised to prevent blotchiness due to alternating earlywood and latewood densities.
Identification Confidence
High; the transition between earlywood and latewood, the specific reddish-orange hue of the oxidized heartwood, and the presence of small tight knots are hallmarks of Douglas Fir timbers.