Iroko has heartwood that varies from a pale yellowish brown to dark chocolate brown with lighter markings most conspicuous on flat-sawn surfaces. It is sapwood is yellowish white and is clearly demarcated. It is texture is medium to coarse with an interlocked and sometimes irregular grain. It has a slightly greasy feel and is odorless.
Heartwood is usually a yellow to golden or medium brown, with color tending to darken over time. Pale yellow sapwood is clearly demarcated from the heartwood.
1" (25mm), 2" (50mm), 3" (80mm).
Generally easy to work, with the exception of its interlocked grain, which may cause some tearout during surfacing operations. Also, deposits of calcium carbonate are sometimes present, which can have a significant dulling effect on cutters. Iroko glues and finishes well.