Jelawai |
The timber is moderately hard to hard and moderately heavy. The individual species shows a marked variation in density, which ranges from 385 to 850 kg/m3 air dry. The timber is classified under Light Hardwood in Malaysia.The timber is non-durable under exposed conditions.Texture is moderately fine and even in T. citrina and moderately coarse in others. Grain is interlocked, often deeply interlocked. The timber falls into Strength Group A. It is easy to saw and work and the planed surface is generally smooth. The nailing property is rated as good.The timber seasons fairly rapidly to moderately slowly with almost no degrade except for some minor insect attacks. 13 mm thick boards take approximately 2.5 to 3 months to air dry, while 38 mm thick boards take 2.5 to 5 months.Shrinkage is rather low. Radial shrinkage averages 0.9% while tangential shrinkage averages 1.6%.
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