Common Name(s): Koa, Hawaiian Koa
Scientific Name: Acacia koa
Janka Hardness: 1,170 lbf (5,180 N)
Color/Appearance: Color can be highly variable, but tends to be medium golden or reddish brown, similar to Mahogany. There are usually contrasting bands of color in the growth rings, and it is not uncommon to see boards with ribbon-like streaks of color. Boards figured with wavy and/or curly grain are also not uncommon.
Grain/Texture: Grain is usually slightly interlocked, and sometimes wavy. Uniform medium to coarse texture.
Workability: In most circumstances, Koa is easy to work, and sands well. However, figured wood, or pieces with heavily interlocked grain can be difficult to plane or machine without tearing or chipping of the grain; also, Koa can occasionally give problems in gluing, though this is somewhat uncommon. Koa turns, stains, and finishes well.
Sustainability: This wood species is not listed in the CITES Appendices, and is reported by the IUCN as being a species of least concern.
Common Uses: Veneer, furniture, cabinetry, musical instruments (especially guitars and ukuleles), canoes, gunstocks, carvings, bowls, and other turned/specialty wood objects.