Merbatu |
The timber is a Medium Hardwood with a density of 685-1,000 kg/m3 air dry. The timber is moderately durable under exposed conditions but is amenable to preservative treatment. Texture is moderately coarse but even, with straight, spiral or wavy grain. The timber falls into Strength Group B. It is difficult to very difficult to resaw and cross-cut due to the presence of silica and the twisted grain. The timber is slightly difficult to plane but the surface produced is smooth. The nailing property is rated as very poor. The timber seasons fairly rapidly with slight defects. Slight cupping, bowing, splitting and some moderate amount of end-checking and staining are the main sources of degrade. 13 mm thick boards take 1.5 months to air dry, while 38 mm thick boards take 3.5 months.Shrinkage is fairly low, with radial shrinkage averaging 1.6% and tangential shrinkage averaging 2.6%.
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