The timber which is known as Red Balau in Peninsular Malaysia, and
as Selangan Batu Merah in Sabah and Sarawak, is the product of a
few heavy species of Shorea, the most common of which are S.guiso,
S.collina, S.kunstleri and S.ochrophloia. The timber is generally
fairly slow drying, with moderate end-checks, slight splitting and
surface checking as the main defects.
General description of the wood: Sapwood is pink, purple-brown
or grey-brown and is fairly well-defined from the heartwood,
which is light to deep red-brown.
The grain is deeply interlocked. Texture is moderately fine to slightly coarse