Teak
Tectona grandis • Exotic/Tropical Hardwood
Grain Pattern
Straight to slightly wavy grain with a coarse, uneven texture. The photo shows a characteristic straight-grain cut typical of high-quality marine or furniture grade timber.
Color Description
Heartwood is a golden or medium brown, darkening with age. Sapwood is a pale yellowish-white. It possesses a dull luster and a distinctively oily feel when unfinished.
Hardness Rating
1000 - 1150 lbf (Medium)
Durability Rating
Very Durable. Highly resistant to rot, termites, and fungal decay. It is considered one of the most decay-resistant woods in the world.
Common Uses
Boat building (decks and trim), outdoor furniture, high-end interior flooring, cabinetry, veneer, and exterior joinery.
Geographic Origin
Native to South and Southeast Asia; widely grown on plantations across tropical regions in Africa, Latin America, and the Caribbean.
Market Value & Sustainability
Estimated Market Value
$25.00 to $50.00 per board foot depending on source and quality.
Wood Age Estimate
The sample appears relatively fresh or newly milled, though the darkening indicates some oxidation. Estimated at 1-5 years post-milling.
Sustainability Status
Listed as Endangered on the IUCN Red List due to a population decline of over 30% over the last three generations. Often available as FSC certified via plantations.
Workability
Generally easy to work with hand and machine tools, but the high silica content (up to 1.4%) has a severe dulling effect on cutting edges. Glues well despite natural oils if surfaces are pre-cleaned with solvent.
Notable Features
Distinctive leather-like odor when freshly cut. High natural oil content makes it highly water resistant. It can cause skin irritation or respiratory issues in some woodworkers.
Finish Recommendations
Teak oil or tung oil is recommended to maintain the natural color. For marine applications, high-solids varnish is common. If left unfinished outdoors, it will weather to a silver-grey patina.
Identification Confidence
High. The golden-brown color, characteristic open pores, oily appearance, and straight grain are classic indicators of Tectona grandis.