Properties and Uses

 

Petaling

The timber is hard to very hard and heavy to very heavy with a density of 800-1,105 kg/m3 air dry. The timber is classified under Medium Hardwood in Malaysia. Growth ring boundaries indistinct or absent. Heartwood basically dark brown to red, without streaks. Sapwood colour distinct from heartwood colour. Odour indistinct or absent. Texture is fine and even with interlocked grain. The timber falls into Strength Group B or SG3. The timber is moderately durable under exposed conditions. It is easy to saw and work and produces a smooth planed surface. The nailing property is rated as poor. The timber seasons very slowly with very slight defects. The sapwood is moderately prone to attacks by insects and slight cupping, bowing, end-checking and surface-checking have been noted during drying. 13 mm thick boards take 6 months to air dry, while 38 mm thick boards take 9 months. Shrinkage is high, with radial shrinkage averaging 1.9% and tangential shrinkage averaging 3.8%.