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  2. Species - Western Red Cedar

Western Red Cedar (Thuja Plicata Donn ex D.Don)

Technical Specification:

Western Red Cedar is a common tree in the Pacific Northwest coastal and interior regions of British Columbia, Canada. It is a large tree and when mature, up to 60 metres tall and 2.5 metres in diameter. The tree is one of the longest lived and most decay-and insect-resistant softwood species in North America.

Western Red Cedar has the unique, natural performance characteristics and exceptional beauty that bring warmth, character and longevity to homes and commercial buildings around the world. Western Red Cedar is renowned for its naturally occurring resistance to moisture, decay and insect damage.

Its natural durability, dimensional stability and exceptional beauty enable greater design flexibility for a wide variety of Exterior and Interior uses.

JSC Western Red Cedar is the ultimate Green Building material. It is responsibly and sustainably harvested in the publicly managed forests of British Columbia, Canada.

All producers are in the process, or have achieved certification under one or more independent third party certification systems (PEFC, CSA, SFI, FSC).

Physical Properties: 

 Density
 
 Green
 Air Dry
528 - 544
370 - 385
 Specific Gravity Standard0.33
 Hardness Side
 End
1470
3000
 MOE (Mpa)
 Green
 Air Dry
7241
8270
 MOR (Mpa) Green
 Air Dry
36.5
53.8
 Compression Parallel (Mpa) Air Dry33.9
 Compression Perpendicular (Mpa) Air Dry3.43 
 Shear (Mpa) Air Dry5.58
 Shinkage
 OD = Ovendry
 AD = Air Dry 12%
 Radial (OD)
 Tangential (OD)
 Volumetric (OD)
 Volumetric (AD)
 Tang/Rad ratio
2.1%
4.5%
7.9%
4.9%
2.1
 Durability HeartwoodDurable to NZBC/B2 Class 2  for above ground use.
 Recommended Fasteners Corrosion Resistant to NZBC/B2

Download Western Red Cedar Information

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