Durian

Brown Timber Species

Species Name: Durian

Botanical name(s): Durio spp., Neesia spp., Bombax spp., Coelostegia spp., Kostermansia spp. Family: Bombaceae

Size and location information: Total tree height is 40 m with a clear bole to 25 m and diameter from 1.0 to 2.0 m. The rough bark varies in colour from brown to dark red, and decorticates at irregular intervals. Many species of durian have low buttresses.

The trees occur throughout Burma, Malaysia and Indonesia. In many of these areas the durian fruit (which, despite its offensive smell, is considered a delicacy), is harvested every October/November. Ash of the fruit rind is used for bleaching silk.

Small quantities imported to Australia.

Description: Colour. Heartwood is pink-brown to deep, red-brown. Sapwood is lighter coloured and distinct in most species.

Grain. The grain varies between species from straight to interlocked. Texture is coarse and often uneven.

Density: 575-640 kg/m3 at 12% moisture content; approximately 1.6 to 1.8 m3 of seasoned sawn timber per tonne.

Janka Hardness Rating: Green: 3.0, Dry: 3.3

Shrinkage: 3% Radial, 4% tangential

Durability: In ground: Class 4 Above ground: Class 4

Lyctids Susceptibility: Yes

Termite Resistance (AS3660): No

Strength Group: S4/SD4

Fire Hazard properties:

Workability
Machining. Machines well, however turning produces a slightly rough surface.

Fixing. Nails well.

Gluing. Can be satisfactorily bonded using standard procedures.

Finishing. Seasoned timber readily accepts paint, stain and polish.

Uses:
Construction. Light construction, plywood.

Decorative. Furniture, joinery, panelling, veneer.

Others. Clogs.

Availability:
Tends to be limited to stair sizes, and wide colour variations and appearance of "stains".

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