Western cedar

Common Name(s): Northern White Cedar, Eastern Arborvitae

Scientific Name: Thuja occidentalis

Distribution: Northeastern North America

Tree Size: 50-65 ft (15-20 m) tall, 1.3-2 ft (.4-.6 m) trunk diameter

Average Dried Weight: 22 lbs/ft3 (350 kg/m3)

Specific Gravity (Basic, 12% MC): .29, .35

Janka Hardness: 320 lbf (1,420 N)

Modulus of Rupture: 6,500 lbf/in2 (44.8 MPa)

Elastic Modulus: 800,000 lbf/in2 (5.52 GPa)

Crushing Strength: 3,960 lbf/in2 (27.3 MPa)

Shrinkage: Radial: 2.2%, Tangential: 4.9%, Volumetric: 7.2%, T/R Ratio: 2.2

Color/Appearance: Heartwood is pale brown or tan, while the narrow sapwood is nearly white. Numerous small knots are common in the wood.

Grain/Texture: Grain is usually straight, with a fine, even texture. Moderate natural luster.

Endgrain: Resin canals absent; earlywood to latewood transition gradual, color contrast medium; tracheid diameter small to very small; zonate parenchyma.

Rot Resistance: Rated as durable to very durable regarding decay resistance; also resistant to termites and powder post beetles.

Workability: Northern White Cedar has good overall working characteristics, and works easily with both hand and machine tools. However, the wood is both soft and weak, giving it poor screw-holding capabilities. Northern White Cedar glues and finishes well.

Odor: Northern White Cedar has a distinct (though moderate) cedar-like smell when being worked.

Allergies/Toxicity: Although severe reactions are quite uncommon, Northern White Cedar has been reported to cause skin irritation, runny nose, as well as asthma-like symptoms. Reported by the USDA to be among the most allergenic woods native to the United States. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.

Pricing/Availability: Generally available in smaller sizes of lumber. Prices should be in the mid range for a domestic softwood.

Sustainability: This wood species is not listed in the CITES Appendices, and is reported by the IUCN as being a species of least concern.

Common Uses: Fences, posts, shingles, piles, canoes, outdoor furniture, railroad ties, and paper (pulpwood).

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