Sapwood is pink, purple-brown or grey-brown and is fairly well defined from the heartwood, which is light to deep red-brown. Grain for this species is deeply interlocked. Rays are fine to medium sized and are visible to the naked eye on the cross-section.

Intercellular of vertical type occur in concentric formation, often as large as the vessels and filled with white resin. Treatability for the Selangan Batu species is very difficult. It has poor nailing capabilities, turning and boring can be difficult, although planing is quite easy. It is a very durable timber, as it dries slowly with only slight degradation.

Distribution:

Distributed throughout Malaysia on low-lying, undulating land and hills.

Applications and Uses:

Suitable for heavy and medium construction, beams, posts, joists and frames for wagons, trucks, lorries, heavy duty flooring as well as heavy duty furniture. Also used for door and window frames, railway sleepers, transmission posts and decking.