Teak — Tectona grandis
Medium. Identification is based on the characteristic golden-brown color, straight grain, oily luster, and typical usage in spa or moisture-prone trim applications. confidence

Teak

Tectona grandis · Exotic/Tropical

Type
Exotic/Tropical
Origin
South and Southeast Asia (primarily Myanmar, India, Laos, Thailand); widely planted across tropical regions in Africa and Latin America.
Hardness
1070 lbf (Medium)
Durability
Very Durable. Excellent resistance to rot, decay, and insect attack due to natural oils.

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Grain Pattern

Straight to slightly wavy grain with a coarse, uneven texture.

Color & Appearance

Rich golden-brown to dark brown heartwood, sometimes with dark streaks. It darkens significantly with age upon exposure to sunlight.

Hardness (Janka)

1070 lbf (Medium)

Durability & Decay Resistance

Very Durable. Excellent resistance to rot, decay, and insect attack due to natural oils.

Value & Sustainability

Estimated Market Value
15.00 to 35.00 USD per board foot depending on grade and origin.
Wood Age Estimate
Estimated to be 10 to 30 years based on typical architectural installation and minimal oxidation patina.
Sustainability Status
Not CITES listed, but native forests are heavily regulated. Readily available from sustainable plantations (FSC certified).

Common Uses

Marine applications, outdoor furniture, boat building, decking, and high-end indoor trim or flooring.

Geographic Origin

South and Southeast Asia (primarily Myanmar, India, Laos, Thailand); widely planted across tropical regions in Africa and Latin America.

Workability

Generally easy to work with hand and machine tools, though its high silica and oil content can dull cutting edges quickly. Glues and finishes well despite natural oils.

Finish Recommendations

Teak oil or penetrating finishes are traditional. Special preparation such as wiping down with a solvent (like acetone) is recommended to remove surface oils before gluing or finishing with film finishes.

Notable Features

Contains natural oils and resins that make it exceptionally weather-resistant and give it a somewhat greasy or waxy feel to the touch.

Notes

Spa trim 2

Learn more about Teak in the Wood Encyclopedia
Identified August 4, 2026