Malaysian Timber Types Explained
Chengal, Balau, Meranti, Nyatoh & Rubberwood (2026)

Why the timber name on your quote matters

A carpenter's quotation in Malaysia rarely says just “wood”. It says chengal, balau, meranti, nyatoh or rubberwood, and the price moves a long way with that one word. The trouble is that most homeowners cannot tell these timbers apart once they are sanded and stained, and the names are used loosely in the trade. A door described as “solid wood” could be a dense, naturally durable hardwood or a light timber that needs treatment to last indoors.

This guide explains the timbers you will actually be offered for decking, doors, stairs, furniture and cabinets, what each one is good at, and where it goes wrong. It only uses published figures (density and durability ratings from timber references, and prices from our own cost guides), so you can check them yourself.

Two ideas explain most of the differences between timbers. The first is density: heavier timber is usually harder and stronger, and better at taking foot traffic on a floor or a stair tread. The second is natural durability, meaning how well the wood resists rot and insects without chemical treatment.

Durability lives mainly in the heartwood, the darker core of the log. Heartwood has gone through a natural chemical change that makes it more resistant to decay, while the paler outer sapwood has not. That is why a piece of good hardwood with a pale strip along one edge can rot or get borer holes on that strip first, and why a timber that is almost all sapwood, like rubberwood, depends completely on treatment.

The main timbers at a glance

Density figures below are average dried weights from a published wood database; durability is the rating from the same sources. Treat them as a guide to the species group, because individual boards vary.

Chengal: the benchmark outdoor hardwood

Chengal (Neobalanocarpus heimii) grows only in the Malay Peninsula and southern Thailand, and it is the timber Malaysians traditionally trust for anything exposed to the weather. It is classified as naturally durable and is normally very resistant to termite attack and fungal infestation. In a ground-contact test, untreated chengal stakes lasted 9 years, and untreated railway sleepers laid in severe conditions gave an average service life of 19 years. It has long been used for furniture, houses and boat building.

The catch is price and supply. Chengal is listed as endangered on the IUCN Red List, and it is the most expensive local timber you will be quoted. Use it where its durability actually earns its keep: decking, outdoor steps, pergola posts and heavily used stair treads. For indoor furniture it is usually more timber than the job needs.

Balau: a trade name, not one species

Balau is sold as a dense decking and structural hardwood, and at an average dried weight of about 850 kg per cubic metre it is certainly heavy. But “balau” is a trade name for several Shorea species, the same genus that gives us meranti, and the quality varies a lot between them. One widely used wood database rates the group as highly variable in decay resistance and says it should be considered non-durable. Our advice: do not pay a chengal-level price for balau unless the supplier can tell you the species.

In practice that means two balau quotes are not automatically comparable. Ask the supplier which species and grade you are getting, look for dense, even boards without pale sapwood edges, and expect outdoor balau to need regular oiling. Where you cannot confirm the species, price the deck in chengal, merbau or composite boards as well and compare.

Meranti: the everyday joinery timber

Meranti is also Shorea, and the trade splits it into light red, dark red, white and yellow meranti. For home carpentry the difference between light and dark red matters most. Dark red meranti averages about 675 kg per cubic metre and is rated moderately durable to non-durable; light red meranti is much lighter at about 480 kg per cubic metre and is rated non-durable. Both are susceptible to insect attack.

Meranti works well for interior doors, door frames, window frames, skirting and general joinery, where it stays dry and painted or varnished. It is a poor choice for decking or a deck substructure, and it should be treated if it goes anywhere near the ground or a damp wall.

Nyatoh: the cabinet and furniture wood

Nyatoh covers several species of Palaquium and Payena. It averages about 620 kg per cubic metre, has a fine, even grain that takes stain well, and is the usual default for solid wood cabinet doors and frames in Malaysia. Its weakness is durability: it is rated non-durable and susceptible to insect attack, so it belongs indoors, sealed on every face, and treated against termites. The solid wood kitchen cabinet guide compares nyatoh, meranti and teak for kitchens in detail.

Rubberwood: stable, affordable, treatment-dependent

Rubberwood comes from rubber trees at the end of their latex-producing life, and a great deal of Malaysian furniture is made from it; the government once marketed it as “Malaysian Oak”. It averages about 595 kg per cubic metre, shrinks very little, and takes paint and stain evenly, which makes it good value for bedroom carpentry and painted doors.

It is also perishable and susceptible to fungal and insect attack, so everything depends on the boron treatment and kiln drying it gets soon after sawing. It is not suitable for outdoor use, because rain can leach the protective chemicals out. The rubberwood cabinet guide explains what to ask for and how to spot poorly treated stock.

Merbau and kempas: the flooring hardwoods

Two more names turn up on flooring and stair quotes. Merbau averages about 815 kg per cubic metre and is reported to be very durable, resisting both rot and insects. It carries small yellow mineral deposits that are water-soluble and can stain light surfaces, which is worth knowing if it will sit on or beside pale tiles or render outdoors. Kempas is heavier still at about 880 kg per cubic metre; its heartwood is rated moderately durable to durable, but it is susceptible to termites, so it is an indoor flooring and structural timber rather than a decking one. The parquet flooring cost guide compares merbau and chengal floors with imported species.

Which timber for which job

What timber work costs

These are indicative Klang Valley figures from our own cost guides, where the full breakdown and assumptions are published. They show how the species choice moves the budget:

For the full staircase options, including timber treads on a concrete or steel stair, see the staircase renovation cost guide.

How to choose, and what to ask your contractor

1. Ask for the species in writing, not just “solid wood” or “hardwood”. For balau and meranti, ask which type.
2. Ask whether it is treated and kiln-dried, especially for rubberwood, nyatoh and meranti.
3. Match the timber to the exposure. Outdoors and in ground contact, pay for natural durability; indoors and dry, a treated, stable timber is fine.
4. Check for pale sapwood strips on outdoor boards and stair treads, since sapwood is the part that decays first.
5. Seal every face, including backs and undersides, and plan for termite protection in the house as a whole; the termite control guide explains the options.

How ClickBina helps

ClickBina is an experienced KL & Selangor contractor handling whole-house refurbishment and trade coordination, including carpentry, doors, stairs and decking as part of a renovation. We will tell you which timber the quote is for, and where a cheaper species or a non-timber material makes more sense for the location. See our carpentry and fixtures services for the kind of work involved. The price is flat, with no hidden charges. A site visit is RM150, waived if you go ahead. WhatsApp us your job details and we reply within the hour.

Sources & methodology

Chengal's range, durability, test results, uses and conservation status are from the Wikipedia article on Neobalanocarpus. Rubberwood treatment, stability, outdoor limits and the Malaysian Oak name are from the Wikipedia article on rubberwood. The Shorea trade names are from the Wikipedia article on Shorea, and heartwood durability from the Wikipedia article on heartwood. Densities and durability ratings are from The Wood Database entries for balau, dark red meranti, light red meranti, nyatoh, rubberwood, merbau and kempas. Prices are indicative Klang Valley figures taken from ClickBina's own published cost guides linked above.