Western Red Cedar
Thuja plicata • Softwood
Grain Pattern
Predominantly straight grain with a fine to medium texture; some minor cathedral patterns and small pin knots visible. Flat-sawn orientation.
Color Description
Heartwood ranges from reddish to pinkish brown with occasional darker streaks. Sapwood is pale yellowish white. It has a dull luster and will patina to a silvery grey if exposed to UV light without a finish.
Hardness Rating
350 lbf (Very Soft)
Durability Rating
Durable to Very Durable; excellent resistance to rot and decay. Heartwood contains natural thujaplicins which act as a natural fungicide.
Common Uses
Exterior siding, decking, shingles, heavy timber construction, fences, garden furniture, and interior paneling.
Geographic Origin
Pacific Northwest of North America (from Alaska to Northern California and inland to Montana/British Columbia).
Market Value & Sustainability
Estimated Market Value
$4.00 - $7.00 per board foot depending on grade (Clear vs. Knotty).
Wood Age Estimate
Relatively modern lumber, likely less than 2-5 years old, showing minimal oxidation and clean industrial mill marks/stapled inventory tag.
Sustainability Status
Least Concern (IUCN); widely available with FSC certification; highly sustainable due to managed forest practices in North America.
Workability
Excellent workability with both hand and machine tools. Very easy to plane and sand, though it is prone to bruising and denting due to low hardness. Glues and finishes well.
Notable Features
Distinctive aromatic 'cedar' scent; very lightweight; low density; can cause respiratory irritation or allergic reactions in some woodworkers; high tannin content can cause blue-black staining if in contact with iron fasteners.
Finish Recommendations
Oil-based stains or transparent sealers are best for exterior use to preserve color. For interior, water-based polyurethanes or lacquer. Avoid heavy film finishes on exterior surfaces as they may peel.
Identification Confidence
High; the reddish-brown color transition, straight grain, specific texture of the pin knots, and the presence of a commercial inventory tag common in home centers supporting Pacific Northwest softwoods strongly indicate Western Red Cedar.