Iroko (African Teak)
Milicia excelsa, Milicia regia • Exotic/Tropical Hardwood
Grain Pattern
Interlocked and irregular grain with a medium to coarse texture; features a distinct 'ribbon' figure when quarter-sawn and large, open pores.
Color Description
Heartwood is typically a yellow-to-golden brown, darkening to a deep brown over time. Sapwood is a pale yellow. It displays high luster and significant chatoyance under light.
Hardness Rating
1,260 lbf (Hard)
Durability Rating
Very Durable; excellent resistance to rot and insect attack, though sometimes susceptible to powder-post beetles in sapwood.
Common Uses
Boat building, outdoor furniture, decking, flooring, cabinetry, and as a lower-cost substitute for Teak (Tectona grandis).
Geographic Origin
Tropical Africa (spanning East and West Africa)
Market Value & Sustainability
Estimated Market Value
$10.00 - $15.00 per board foot
Wood Age Estimate
The visible oxidation and surface weathering suggest this sample has been exposed to elements/UV for 3–7 years.
Sustainability Status
Listed as Near Threatened on the IUCN Red List; not CITES listed but subject to export restrictions in several African nations.
Workability
Generally works well, but interlocked grain can cause significant tearout during planing. Contains calcium carbonate deposits that can dull cutting edges rapidly.
Notable Features
Pleasant scent when worked; potential for allergic reactions (skin/respiratory irritation). High tannin content and natural oils make it very weather-resistant.
Finish Recommendations
Oil-based finishes (Teak oil or Danish oil) are highly recommended to penetrate the natural oils. For outdoor use, high-UV clear coats are preferred.
Identification Confidence
Medium-High; identifying features include the coarse texture, interlocked 'ribbon-like' grain visible in the center-right board, and the characteristic darkening patina.