Western Red Cedar
Thuja plicata • Softwood
Grain Pattern
Straight grain with a medium to coarse texture. The image shows a flat-sawn or vertical-grain orientation typical of exterior siding, displaying prominent latewood bands.
Color Description
Heartwood ranges from pinkish-red to a cooler reddish-brown. The sample shows significant silver-grey weathering (patina) and dark water staining/oxidation typical of exterior wood exposure.
Hardness Rating
350 lbf (Very Soft)
Durability Rating
Durable to Very Durable; naturally resistant to decay and rot due to high thujaplicin content, but susceptible to insect attack if not treated.
Common Uses
Exterior siding, decking, shingles, fences, outdoor furniture, boat building, and saunas.
Geographic Origin
Pacific Northwest of North America (British Columbia to Northern California).
Market Value & Sustainability
Estimated Market Value
$5.00 - $9.00 per board foot depending on grade (Clear Heart vs. STK).
Wood Age Estimate
Based on the silvering and iron stains, the installation likely has 5–15 years of exposure.
Sustainability Status
Least Concern (IUCN); widely available with FSC certification and managed in sustainable forests.
Workability
Easy to work with hand and machine tools; however, it is very soft and prone to bruising or denting. It finishes and glues well but can cause corrosion in non-stainless fasteners.
Notable Features
Distinctive aromatic 'cedar' scent; contains natural oils that provide weather resistance; can cause respiratory irritation or allergic reactions in some workers.
Finish Recommendations
Penetrating oil-based stains are best for preserving color; can be left unfinished to weather to a natural silver-grey.
Identification Confidence
High; the color transitions, grain spacing, and specific weathering pattern of the iron stains are characteristic of Western Red Cedar exterior siding.