merbau

Merbau is a tropical hardwood timber commonly derived from species in the genus Intsia, most often Intsia bijuga. It is native to tropical regions of Asia and the Pacific, including Indonesia, Malaysia, Papua New Guinea, and surrounding areas. The heartwood ranges from reddish-brown to dark brown with variable darker streaks, while the sapwood is pale. Merbau is prized for its natural durability, strength, and attractive color, making it a popular choice for outdoor and heavy-duty applications.

The wood is known for good resistance to decay and insect attack, contributing to its suitability for exterior use and long-lasting construction components. It is relatively dense and hard, which can make machining and finishing challenging; proper season­ing and acclimation are often recommended to minimize warping and checking. When finished, merbau takes stains and clear finishes well and tends to darken with age and exposure to light.

Uses for merbau include decking, flooring, exterior joinery, cabinetry, furniture, and boatbuilding. Its combination of hardness, stability, and aesthetic appeal has driven widespread use in residential and commercial construction, as well as in high-end timber products.

Sustainability and availability: Merbau has faced concerns over overharvesting in some parts of its range. Much of the timber on the market is sold with third‑party certifications or documentation of origin to verify legal and sustainable sourcing. Buyers are advised to seek certified material (for example, from recognized forest certification schemes) and to verify the supplier’s provenance to ensure responsible harvesting and trade.