Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight grain with a medium to coarse texture; visible growth rings showing a distinct transition between light-colored earlywood and darker latewood; flat-sawn orientation.
Color Description
Heartwood is a light reddish-brown to orange-yellow color; sapwood is yellowish-white. The color typically darkens and reddens significantly over time with UV exposure.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some resistance to decay but is susceptible to insect attack (especially termites).
Common Uses
Structural framing, heavy construction, flooring, plywood, windows, doors, and millwork.
Geographic Origin
Native to Western North America (Pacific Northwest, Rocky Mountains).
Market Value & Sustainability
Estimated Market Value
$2.50 - $5.00 per board foot depending on grade (Vertical Grain/Clear grades are more expensive).
Wood Age Estimate
Freshly milled or lightly aged; surface appears relatively clean with minimal oxidation, though the color suggests it has been exposed to light for several weeks.
Sustainability Status
Not listed on CITES Appendices or the IUCN Red List; widely available and frequently FSC certified from managed forests.
Workability
Commonly works well with both hand and machine tools, though it can be prone to splintering and tearout if tools are not sharp. Glues, stains, and finishes well.
Notable Features
Distinctive resinous scent when cut; high strength-to-weight ratio; susceptible to 'raised grain' if sanded improperly.
Finish Recommendations
Penetrating oils, polyurethane, or lacquer; clear coats are recommended to highlight the orange-red hues. Use a wood conditioner before staining to prevent blotching.
Identification Confidence
High. The visible growth ring contrast, reddish-orange heartwood tint, and fiber structure are classic indicators of Douglas Fir construction lumber.