Sena |
The timber is moderately hard and moderately heavy with a density of 560-690 kg/m3 air dry. Sena is moderately durable. Its sapwood is readily attacked by fungi and insects. Sena is very easy to treat with preservatives. Texture is moderately coarse and uneven, due to the ring-porous structure. Grain is interlocked and sometimes wavy. The timber falls into Strength Group C. It is slightly difficult to resaw and cross-cut due to the presence of severely interlocked grain. Planing is easy but the finish is only moderately smooth with some grain pick-up in radial sawn material. The timber seasons fairly slowly, with very little degrade, except for some insect and fungal attacks on the sapwood. 13 mm thick boards take approximately 4 months to air dry and 38 mm thick boards take 5 months. Shrinkage is low, with radial shrinkage averaging 0.9% and tangential shrinkage averaging 1%. The logs are generally free from natural defects.
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