Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Strong, prominent latewood growth rings with a straight, coarse grain pattern. The end grain shows a very high contrast between earlywood and latewood bands with occasional wavy transitions near the pith.
Color Description
The heartwood is typically light brown with a hint of red or orange; sapwood is a paler yellowish-white. It develops a darker, more reddish-brown patina over time with exposure to UV light.
Hardness Rating
660 lbf (Soft to Medium classification)
Durability Rating
Moderately Durable; offers some resistance to decay but is susceptible to insect attack if not treated with preservatives.
Common Uses
Heavy structural timber, dimensional framing lumber, flooring, veneer, cabinetry, and exterior millwork.
Geographic Origin
Western North America, primarily the Pacific Northwest, extending from British Columbia down through California.
Market Value & Sustainability
Estimated Market Value
$2.50 - $6.50 per board foot depending on grade (Vertical Grain vs. Flat Sawn) and dimensions.
Wood Age Estimate
The visible growth rings suggest the timber was harvested from a tree at least 25-30 years old, while the oxidation and surface weathering indicate the cut lumber is likely 1-5 years old.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available with FSC certification and considered a highly sustainable, managed resource.
Workability
Generally works well with both hand and machine tools, though the stark difference in density between earlywood and latewood can cause 'washboarding' during sanding or uneven absorption of stains.
Notable Features
Distinctive resinous scent when cut; has a high strength-to-weight ratio; known for being one of the strongest softwoods available globally.
Finish Recommendations
Accepts paint and clear coats well. If staining, a pre-stain wood conditioner is highly recommended to prevent blotchiness due to the high resin content and uneven density.
Identification Confidence
High; the distinctively thick, dark latewood rings paired with the light earlywood and the specific reddish-orange hue are characteristic of Douglas Fir structural timber.