Kempas wood, also known as impas and mengris, is a distinct type of wood derived from swampy regions, forests and the hillsides of Malaysia and Indonesia. It is derived from a very tall tree, reaching up to 180 ft in height. While the sapwood of the kempas wood is a yellowish, white color, the heartwood has an orange/red or reddish brown tone. When they are just cut down, the color is a dark red, but begins to change as it is exposed to the air and other particles. The grain is interlocked and coarse, with an occasional spiral. What is very interesting about the kempas wood is that it is very resistant to decay, and does not wear easily. The timber is known to be acidic, and it may be harmful to metals. They are used for not only flooring, but in the production of chairs, cabinets, shingles, and veneer.