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Durability: Very Durable
Colour: Dark
Sizes available: 25, 40, 50, 75, 100 mm

Trade Name:  Kwila
Botanical Species: Intsia spp.
Other Names:  Merbau (Malaysia), Vesi (Fiji)
Country of Origin: Papua New Guinea
Air Dry Density: 870kgs/m³
Durability: Very Durable
Strength:  SD2


The timber dries slowly without appreciable degrade but if submitted to rapid drying conditions, there is a definite tendency for end splitting and surface checking to occur.
It has a low shrinkage factor.
The heart wood is yellow-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.
Working Qualities: 
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 20° 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 early attention is given to any staining it can generally be removed by scrubbing with milk or lactic acid.
A very good heavy construction timber.
Ideally suited for decking and outdoor furniture.
It is also used in internal joinery and flooring, striking tool handles and carving.
Product Attributes:
Yellow brown timber which will turn red brown with age.
Long lengths available.
A very strong, durable, stable timber.
Fixed widths available.
Veneers available.
Product Limitations:
Does leach when in contact with water.
Care needed when machining.
Care needed when staining, polishing and gluing due to natural resins.