Our Stock Range:

Botanical Name: Intsia spp

Origin: Papua New Guinea, Indonesia

The heartwood is yellowish-brown, brown or dark red, red-brown, turning to a dark red-brown with age. The wood is hard and heavy, the texture is moderately coarse but even and the grain may be straight or interlocked and is often wavy. Sulphur-yellow and dark coloured deposits are characteristic of the species and can be commonly seen in the vessel cavities. Timber ‘bleeds’ when wet producing dark red-brown stain.

• Landscaping & heavy construction

• Flooring

• Decking

• Exterior joinery & construction

• Interior joinery & furniture

• Mouldings

Highly suitable for premium heavy construction due to its low shrinkage and durability.

Saws well, however, with the fairly high incidence of gum, saws tend to become clogged. It planes well but there is a tendency for the grain to tear out in quarter-sawn material. A reduction in the cutting angle to 20º is beneficial. The wood tends to split when nailing but holds screws well and can be stained and polished reasonably well, however, patches of oil that exude may affect the finish. The yellow deposits are soluble in water and the dye produced does stain. If, however, early attention is given to any staining it can generally be removed by scrubbing with milk or lactic acid.

Kwila has high bending strength, crushing strength and stiffness, with medium resistance to shock loads. It has a poor stream bending classification due to exudation of oil.

Durability (In Ground)

Durability (Above Ground): Durable

Density Air Dried 870 kg/m²

Shrinkage Radial 0 – 2.0 % (Green to 12% MC)

Shrinkage Tangental: 1.0 – 3.0 % (Green to 12% MC)

Stability Kiln Dried Very stable

Stability Green: Stable