Macrocarpa

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		Macrocarpa Botanical Name: Cupressus macrocarpa Common Name(s): Origin: New Zealand
OverviewBasic InfoTechnical General: A low to medium density softwood, originally from California and introduced to NZ in the mid 1800’s, planted mostly as shelterbelts. The heartwood is moderately durable, and is light golden brown in colour. Seasoning: The timber needs to be air dried well before kiln drying to avoid collapse and internal checking. Uses: Typical uses include T&G panelling, exposed beams and rafters, and landscaping applications including large end section pergolas. Availability Stocked: Yes Price: Availability: Available ex-stock in sizes ranging from 100x25 to 200x50mm. Supply - Resource Certification Durability - Durability Durability (In Ground) Perishable/Non Durable Durability (Above Ground): Moderately Durable Density Density Air Dried 485 kg/m² Shrinkage Shrinkage Radial 1.6 % (Green to 12% MC) Shrinkage Tangental: 3.3 % (Green to 12% MC) Stability Stability Kiln Dried Stable Stability Green: Prone to shrinkage and distortion Mechanical Properties Mechanical Links Janka Hardness: (Average) 2.8 kN Modulus of Rupture / Bending Strength: 78.4 MPa (N/mm² or MN/m²) Modulus of Elasticity / Stiffness: 7.6 GPa (GN/m²) Moisture Meter Reading Corrections Moisture Meter Reading Corrections: Fire Indicies Ignitability Index: (NZ/AS 1530.3) Flame Spread Index: (NZ/AS 1530.3) Heat Evolved Index: (NZ/AS 1530.3) Smoke Developed Index: (NZ/AS 1530.3)

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