Siberian Larch

• Durability - Class 3/4, moderately durable
• Moisture - Small
• Density (mean.Kg/m3) - 550
• Texture - Fine
• Price - Low
• Colour(s) - Beige to Pale Yellow
• Working Qualities - Medium
• Fasterners* - Use stainless steel or galvanised nails
• Spread of Flame Rating# - Class D
   

Western Red Cedar

• Durability - Class 2, durable
• Moisture - Small
• Density (mean.Kg/m3) - 390
• Texture - Coarse
• Price - High
• Colour(s) - Pale Yellow to Reddish Brown
• Working Qualities - Excellent
• Fasterners* - Use stainless steel or galvanised nails
• Spread of Flame Rating# - Class D
   

Thermowood

• Durability - Class 2, durable
• Moisture - Small
• Density (mean.Kg/m3) - 490
• Texture - Fine
• Price - Low
• Colour(s) - Dark Brown
• Working Qualities - Good
• Fasterners* - Use stainless steel or galvanised nails
• Spread of Flame Rating# - Class D
   

Accoya

• Durability - Class 1, very durable
• Moisture - Very small
• Density (mean.Kg/m3) - 510
• Texture - Fine
• Price - High
• Colour(s) - Beige to Pale Yellow
• Working Qualities - Good
• Fasterners* - Use stainless steel
• Spread of Flame Rating# - Not tested to Euroclass standards, but equivalent to other softwood in ASTME84 spread of flame

* : Source - TRADA External Timber Brochure

# : Spread of Flame Rating will vary depending on treatment applied