Termite-Resistant Wood Types in India: Teak, Sal and Others

Timber choice affects how well a door, window or staircase stands up to termites. Some Indian woods have natural chemicals or density that make them more resistant. But "resistant" does not mean immune, and how the wood is used matters as much as which wood it is.

This guide gives a general overview. Resistance varies with the wood's age, quality and part of the tree, so confirm with your supplier.

The short answer

Heartwood of durable timbers such as teak and sal is generally more termite-resistant than sapwood and softer woods, because of natural oils, density and extractives. Other woods commonly considered durable include some varieties of rosewood, ironwood-type timbers and certain others, while softwoods and sapwood are more vulnerable. No wood is completely termite-proof, especially in damp conditions or with direct soil contact, so protect any timber through treatment, sealing, moisture control and good design.

Woods commonly regarded as durable

• Teak: Well known for durability and natural oils. Heartwood is generally resistant.
• Sal: Dense, hard timber with good durability, commonly used for doors and frames.
• Other dense hardwoods: Some regional timbers with similar properties, depending on supply.

Woods that are generally more vulnerable

• Sapwood of most species, including teak and sal.
• Softwoods and fast-growing plantation timbers.
• Rubberwood and similar woods unless treated.
• Engineered boards without treatment.

What "resistant" really means

1. Relative, not absolute: Termites may still attack resistant wood if conditions favour them.
2. Heartwood versus sapwood: The outer sapwood is much less resistant.
3. Age and quality: Younger or lower-quality timber has less natural protection.
4. Moisture and contact: Damp or soil contact increases risk for any wood.
5. Finishing: Paint and polish may help but do not make wood immune.

How to protect any wood

• Use treated timber, with preservative applied properly.
• Seal cut ends and edges.
• Keep wood dry and off the floor and soil.
• Maintain polish and paint.
• Treat the building's soil and walls.
• Inspect regularly.

Buying tips

1. Ask the supplier what species and which part of the tree the timber is.
2. Look for documentation of treatment.
3. Check for signs of existing damage in the stock.
4. Do not rely on the name alone. Quality varies.

When to call a professional

Ask a termite or wood treatment specialist when specifying timber for important structural or decorative work. They can advise on treatment suited to the species.

Frequently asked questions

Is teak termite-proof?

Teak heartwood is resistant, but not immune, and sapwood is vulnerable.

Is sal better than teak?

Both are durable. Choice depends on use, availability and quality.

Does polish protect wood from termites?

It adds some protection against moisture but is not a termite treatment.

Should I still treat durable wood?

Yes. Treatment and good design add protection.

This guide is part of IPest's complete resource on termite control. For identification help, prevention and treatment options, see our full termite treatment guide for Bangalore.