Iroko (African Teak)
Milicia excelsa · Hardwood / Exotic
- Type
- Hardwood / Exotic
- Origin
- Tropical Africa (West and East Coast regions)
- Hardness
- 1,260 lbf (Hard)
- Durability
- Very Durable; excellent resistance to rot and insect attack, commonly used as a teak substitute for outdoor applications.
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Grain Pattern
Interlocked grain with a medium to coarse texture; features long, prominent vessel lines and a slightly irregular ribbon-like figure.
Color & Appearance
Heartwood is typically a golden to medium brown; develops a darker, richer mahogany-like brown over time due to UV exposure. Sapwood is yellowish-white and clearly demarcated.
Hardness (Janka)
1,260 lbf (Hard)
Durability & Decay Resistance
Very Durable; excellent resistance to rot and insect attack, commonly used as a teak substitute for outdoor applications.
Value & Sustainability
- Estimated Market Value
- $10.00 - $15.00 per board foot
- Wood Age Estimate
- The sample appears to be seasoned lumber with some surface oxidation suggesting it has been milled within the last 1-5 years.
- Sustainability Status
- Listed on the IUCN Red List as Near Threatened; not currently CITES restricted but population is declining due to over-harvesting.
Common Uses
Exterior joinery, boat building, flooring, furniture, cabinetry, decking, and heavy construction.
Geographic Origin
Tropical Africa (West and East Coast regions)
Workability
Generally works well, though interlocked grain can cause tear-out during surfacing. Contains calcium carbonate deposits which can dull cutting edges quickly.
Finish Recommendations
Takes stains and finishes well; however, due to natural oils, a solvent-based sealer or wiping with acetone is recommended before applying polyurethane or lacquers.
Notable Features
Often lacks a distinct odor when dry; dust can be a potent sensitizer causing respiratory issues or skin irritation. Known for its high strength-to-weight ratio.
