Teak
Tectona grandis • Exotic/Tropical Hardwood
Grain Pattern
Straight to wavy grain with a medium-coarse texture; the sample shows a flat-sawn face with distinct cathedral and elliptical growth ring patterns.
Color Description
Golden to medium brown heartwood that darkens with age. Sapwood is typically pale yellowish-white. It has a dull luster due to high oil content but can exhibit chatoyance when finished.
Hardness Rating
1,070 lbf (Medium)
Durability Rating
Very Durable; exceptional resistance to rot, fungal decay, and termites due to high natural oil and silica content.
Common Uses
Outdoor furniture, boat building (especially decks), flooring, veneer, cabinetry, and exterior construction.
Geographic Origin
Native to Southern Asia (India, Myanmar, Thailand); widely grown on plantations across Africa, Latin America, and the Caribbean.
Market Value & Sustainability
Estimated Market Value
$20.00 - $40.00 per board foot for high-quality FEQ (First European Quality) lumber.
Wood Age Estimate
The sample appears relatively young and recently processed, showing modern saw marks and a fresh, unweathered surface with minimal oxidation.
Sustainability Status
Not CITES listed; IUCN status varies by region (Endangered in native wild habitats like Myanmar); FSC certified plantation teak is widely available.
Workability
Generally easy to work but high silica content causes modern blunting of cutting edges. Glues well if surfaces are wiped with solvent to remove natural oils.
Notable Features
Distinctive leather-like scent when freshly cut; greasy or oily feel; contains natural silica that provides slip resistance and durability.
Finish Recommendations
Teak oil or tung oil are best to maintain natural appearance; if film-forming finishes like lacquer are used, a sealer is required to block natural oils.
Identification Confidence
Medium-High; the elliptical grain structure, characteristic golden-brown hue, and visible oily texture are highly indicative of Tectona grandis.