Douglas Fir
Pseudotsuga menziesii • Softwood
Grain Pattern
Straight grain with a medium to coarse texture. The end grain shows prominent, dense latewood bands (growth rings) and a sharp transition between earlywood and latewood typical of flat-sawn conifers.
Color Description
Heartwood is typically a range of light brown to reddish-brown; sapwood is yellowish-white. This specific sample shows significant surface oxidation and graying (patina) due to weathering and exposure, with deeper reddish hues visible in the latewood growth rings.
Hardness Rating
660 lbf (Soft)
Durability Rating
Moderately Durable; offers some resistance to decay and rot but is susceptible to insect attack. Its durability is considered excellent among domestic softwoods.
Common Uses
Heavy structural lumber (beams, glulam), residential framing, flooring, plywood, trim/millwork, and boat building.
Geographic Origin
Western North America (Pacific Northwest through the Rocky Mountains).
Market Value & Sustainability
Estimated Market Value
$3.00 - $6.00 per board foot depending on grade (Vertical Grain/Clear commands higher prices).
Wood Age Estimate
Based on the heavy silver-gray oxidation, surface checking, and accumulation of workshop dust/debris, this sample appears to be reclaimed or 'old-growth' stock likely harvested and exposed to the elements for 10-30 years.
Sustainability Status
Not CITES listed or on the IUCN Red List. Widely available through sustainable forest management and FSC certified sources.
Workability
Generally easy to work with machine tools, though it can be prone to splintering and tearout if tools are dull. It glues, stains, and finishes well, though the hard latewood bands can cause 'ridges' when sanding.
Notable Features
Distinctive resinous/sweet scent when freshly cut. High strength-to-weight ratio. Known for having very defined and hard growth rings that can result in uneven wear in high-traffic flooring applications.
Finish Recommendations
Penetrating oils or polyurethane are recommended. Because of the density differences between earlywood and latewood, a pre-stain wood conditioner is advised if using dark pigments to prevent blotchiness.
Identification Confidence
High; the very distinct, thick latewood bands and the abrupt transition from earlywood visible on the end grain are classic indicators of Douglas Fir, supported by the reddish-brown tint visible beneath the weathered surface.