Teak
Tectona grandis • Exotic/Tropical
Grain Pattern
Straight to slightly interlocked with a coarse, uneven texture. The sample shows visible growth rings and a characteristic oily surface appearance with slight wavy patterns.
Color Description
Heartwood is typically golden or medium brown, darkening with age. Sapwood is a pale yellowish-white. This sample shows typical darkening and patina consistent with aged teak under light exposure.
Hardness Rating
1,070 lbf (Medium)
Durability Rating
Very Durable. Exceptional resistance to rot, termites, and weathering due to high natural oil and silica content.
Common Uses
Boat building (decks and trim), high-end outdoor furniture, flooring, veneer, and exterior joinery.
Geographic Origin
Native to South and Southeast Asia (India, Myanmar, Thailand); widely grown on plantations across Africa and Latin America.
Market Value & Sustainability
Estimated Market Value
$30.00 - $50.00 per board foot, depending on grain quality and source (e.g., Burmese vs. plantation).
Wood Age Estimate
20-40 years based on the deep amber oxidation, visible surface wear on the finish, and the accumulation of desktop-style scratches.
Sustainability Status
IUCN Red List: Endangered (Wild populations). CITES: Not listed, but heavily regulated; FSC certified plantation teak is commonly available.
Workability
Generally easy to work, though the high silica content has a significant dulling effect on cutting edges. Glues well only after surface preparation to remove natural oils.
Notable Features
Distinctive leather-like scent when freshly cut; high natural oil content gives it a greasy feel; excellent dimensional stability.
Finish Recommendations
Teak oil or tung oil to maintain the natural look; if film-forming finishes like lacquer are used, a dewaxed shellac sealer or solvent wipe is required.
Identification Confidence
High. The combination of coarse texture, large open pores, amber-brown hue, and the evident oily luster is signature for Tectona grandis.