merkusi & nz pine

Pinus (Merkusii Pine )

The Tree: Reaches a height of 80 to 100 ft; bole straight, cylindrical, 40 ft in length; trunk diameter up to about 3 ft.

The Wood:

General Characteristics: Heartwood yellowish- to orange brown, darkening on exposure; sapwood whitish to creamy white, sharply delineated in old trees. Texture moderate coarse; grain straight; lustrous when freshly cut but becoming dull with age; resinous odor and a faint resinous taste.

Weight: Basic specific gravity (ovendry weight/green volume) 0.57; air-dry density 43 pcf.

Mechanical Properties: (2-in. standard)

Moisture content Bending strength Modulus of elasticity Maximum crushing strength

(%) (Psi) (1,000 psi) (Psi)

Green (34) 8,720 1,850 3,900

12% 18,700 2,480 8,500

Janka side hardness 605 lb for green and 620 lb for dry material. Forest Products Laboratory toughness 290 in.-lb for green and 260 in.-lb for dry material (2-cm specimen).

Drying and Shrinkage: Easy to dry with little or no degrade. No data available on kiln schedules or shrinkage characteristics.

Working Properties: Saws easily and works to a good finish; resins may gum cutters and tools.

Durability: The wood is rated as nondurable and liable to termite attack.

Preservation: No data available.

Uses: General construction.

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