Western Red Cedar
Thuja plicata • Softwood
Grain Pattern
Straight grain with a medium to coarse texture; visible growth rings with a transition from light earlywood to darker latewood and a prominent knot with surrounding compression grain
Color Description
Heartwood varies from pinkish-red to a duller reddish-brown. Sapwood is a pale yellowish-white. Wood typically silvers or greys when exposed to UV light without a finish
Hardness Rating
350 lbf (Very Soft)
Durability Rating
Durable to Very Durable regarding decay resistance; good resistance to rot and termites though susceptible to some insect attacks
Common Uses
Exterior siding, decking, shingles, outdoor furniture, fence posts, boat building, and saunas
Geographic Origin
Pacific Northwest of North America (British Columbia to Northern California)
Market Value & Sustainability
Estimated Market Value
$4.00 - $8.00 per board foot depending on grade (Clear vs. Knotty)
Wood Age Estimate
Modern lumber sample, approximately 1-5 years post-harvest, showing minimal oxidation or weathering patina
Sustainability Status
Least Concern (IUCN); widely available and not CITES listed. FSC certification is common
Workability
Easy to work with both hand and machine tools; saws and planes easily but is prone to denting and scratching due to softness. Holds nails and screws well but requires stainless steel/hot-dipped fasteners to prevent black staining from tannins
Notable Features
Distinctive aromatic 'cedar' scent; contains high levels of thujaplicins which provide natural decay resistance; dust can be a respiratory irritant
Finish Recommendations
Penetrating oils or semi-transparent stains are best for outdoor use; clear coats or lacquer for indoor decorative use; requires careful sanding as fibers can crush
Identification Confidence
High; the reddish-brown hue combined with the specific texture of the growth rings and the dark, tight knot structure is diagnostic for Western Red Cedar dimensional lumber