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Macrocarpa
MACROCARPA Cupressus macrocarpa haartn
Macrocarpa grows moderately fast throughout New Zealand. It was introduced around the 1860's, where it was planted extensively as a shelterbelt. When planted on it's own or as shelter Macrocarpa is probably the scruffiest tree around, but when grown in a forest it grows straight and true and produces some beautiful timber.
Macrocarpa is a medium density softwood, the clear wood looks and works like New Zealand Kauri.
Macrocarpa is difficult to kiln dry and must be air dried to about 30% moisture content and then slowly finished off in a low temperature kiln to about 12-14%. This can leave small wet pockets and some parts may have internal checking.
Once dry the timber works well and is a rich golden colour.
Typical physical properties
| Density at 12% moisture content:
Modulus of rupture when green: Modulus of rupture at 12% moisture content: Radial shrinkage from green to 12%: Tangential shrinkage from green to 12%: Durability |
496 kg per cubic metre
56.7 Megapascals 78.7 Megapascals 1.8% 3.0% Heart wood is durable |
Uses:
Heart Macrocarpa is naturally durable and can be used outside without preservative treatment, suitable for window reveals, doorjambs, exterior joinery, furniture, mouldings, panelling and cabinet work, survey pegs and fence palings.