Teak
Tectona grandis • Exotic/Tropical
Grain Pattern
Generally straight to slightly interlocked, with a coarse, uneven texture and visible large pores typical of a ring-porous or semi-ring-porous structure.
Color Description
Heartwood is a golden or medium brown that darkens with age; sapwood is pale yellowish-white. It possesses a dull luster and a naturally oily feel. Over time, it develops a silver-grey patina if left unfinished outdoors.
Hardness Rating
1,070 lbf (Medium)
Durability Rating
Very Durable. Exceptional resistance to rot, fungal decay, and termites due to its high natural oil and silica content.
Common Uses
Boat building (decks and trim), outdoor furniture, high-end flooring, veneer, cabinetry, and exterior joinery.
Geographic Origin
Native to Southern Asia (India, Myanmar, Thailand); widely grown on plantations throughout tropical regions in Africa and Latin America.
Market Value & Sustainability
Estimated Market Value
$25.00 - $45.00 per board foot depending on grade and origin (Burmese Teak being more expensive).
Wood Age Estimate
The surface shows moderate oxidation and rough-sawn mill marks, appearing to be seasoned lumber roughly 1-5 years old rather than antique reclaimed material.
Sustainability Status
IUCN Red List: Endangered (wild populations); however, it is widely sustainable through FSC-certified plantation sourcing. CITES listed species vary, but T. grandis is not currently listed.
Workability
Generally easy to work but the high silica content causes significant dulling of cutting edges. Glues well if surface oils are wiped with solvent (like acetone) first. Pre-boring is recommended for screws.
Notable Features
Distinctive leather-like scent when freshly cut. Highly stable with low shrinkage. High natural oil content makes it uniquely water-resistant.
Finish Recommendations
Teak oil or penetrating sealers are preferred to maintain the natural look. If film-finish is used (like lacquer), the surface must be degreased with a solvent first to ensure adhesion.
Identification Confidence
Medium-High; the coarse texture, characteristic golden-brown hue, large visible pores, and oily surface appearance are hallmarks of Tectona grandis.