Dipterocarpus spp.
Keruing (Dipterocarpus spp.) is a medium-hardness wood balancing workability and wear resistance, with a Janka hardness of 691 lbf (3074 N) and a density of about 0.69 g/cm³. It originates from se asia and pacific.
With radial shrinkage of 4.5% and tangential shrinkage of 8.5% (a T/R ratio of 1.89), it is reasonably stable with normal seasonal movement. Its fiber saturation point is around 27%, below which the wood begins to shrink and move as it dries.
These figures feed directly into the Vriksai calculators below — select Keruing in any of them to get species-specific results for weight, moisture, shrinkage and hardness.