Balau, Red/Selangan Batu Merah   PHYSICAL PROPERTIES Density : 515-1.040 kg/m³ Shrinkage i) Radial : 0.9% ii) Tangential : 1.6% Static Bending i) Modulus of elasticity : 15,400 N/mm² ii) Modulus of rupture : 116 N/mm² Compression Strength i) Perpendicular to Grain : 9.17 N/mm² ii) Parallel to Grain : 58.20 N/mm² Shear strength : 12.50 N/mm²

Botanical Name : Shorea spp. principally S. guiso, S. collina, S. kunstleri and S. ochrophloia Family : Dipterocarpaceae Other names :   Distribution : Sporadically distributed throughout the country on low lying, undulating land and hills. Sapwood : Pink, purple-brown or grey brown and is fairly well-defined from the heart-wood, which is light to deep brown Grain : Deeply interlocked Texture : Moderately fine to slightly coarse and even. Working Properties : Planning Easy Finish Smooth to moderately smooth Boring Easy to slightly difficult Finish Smooth to slightly rough Turning Easy to difficult Finish Smooth to rough Nailing Poor Uses : Suitable for heavy and medium construction, beams, posts, joists, frames for wagons, trucks and lorries, heavy duty flooring, furniture, door and window frames, railway sleepers and transmission posts.