Botanical Name: Intsia bijuga (palembanica)
Merbau, Ipil, Kwila

Kwila is a large hardwood native to South-East Asia from the Malaysian mainland through the islands to New Guinea and as far east as Fiji and the Solomon Islands with some occurrence in northern Australia.
Under its various names the timber is widely available in Australia and is highly regarded for a broad range of applications

  • Density(average)
  • 1200kg/m3 green
  • 850kg/m3 dry
  • Durability Class 2
  • S2 green
  • SD3 dry
  • Hardness Rating (average)
  • 7.6kN green
  • 8.6kN dry
Although very dense the timber work fairly well, dresses and turns to a smooth surface however the rather greasy characteristic of the wood tends to clog saws and planer blades easily. The heartwood is orange-brown to brown or dark red-brown while the sapwood is usually pale yellow and very easy to distinguish.
The texture is moderately coarse but even with an interlocked grain and highly visible vessels containing a yellow substance as well as the presence of growth rings. The timber has a very low shrinkage rate and dries with very little degrade.
In Asia it is used regularly for furniture, panelling, boatbuilding and veneers whilst in Australia it is imported for flooring , joinery, predominately staircase and handrail material, and is highly prized as decking.