Koa

Common Name(s): Koa, Hawaiian koa

Scientific Name: Acacia koa

Distribution: Hawaii

Tree Size: 65-100 ft (20-30 m) tall, 3-5 ft (1-1.5 m) trunk diameter

Average Dried Weight: 38 lbs/ft³ (610 kg/m³)

Specific Gravity (Basic, 12% MC): .53, .61

Janka Hardness: 1,170 lb_f (5,180 N)

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. With the tree endemic to Hawaii only, and with supplies dwindling, Koa is likely to be rather expensive. Also,  boards of highly figured and/or curly Koa can command fantastic prices.