Balau is native to Malaysia, Indonesia and the Philippines. It is a dense hardwood used mainly for heavy construction. The heartwood of balau is yellow to brown, which is distinct from the paler sapwood. Its moderately fine and even texture presents an interlocked grain, which produces a stripe figure on the radial surface. Balau is also susceptible to pinhole borer damage. In relation to its density, balau is relatively easy to work. The natural appeal, strength and versatility of timber makes it an ideal choice for retaining wall landscaping applications.