Natural Colour                                                                                               


  • Pale to Dark Reddish Brown


Common Uses

  • Decking, Joinery, Staircases

  • External Structures, Outdoor Furniture, General Construction,

Alternatives (by colour)

  • Spotted Gum, Jarrah

Features & Benefits

  • Very durable, hard and dense timber

  • Bushfire resistant timber

  • Suitable for use in exposed situations

  • Dimensionally a very stable timber

  • Resistant to splintering

  • Highly resistant to termites

  • Good colour restoration after oiling


timber specifications


Botanical & Other Names

  • Insia Bijuga, also known commonly as Kwila



  • SE Asia, Oceania



  • Legality certified



  • The wood grain is variable but usually interlocked or wavy, which produces a ribbon figure on the radial surface. The timber has a coarse but even texture. It has a characteristic oily odour when cut.


  • Merbau takes well to paint, stain and polish, however the finish can sometimes be affected by gum bleed-through or oily patches. Its vessels also contain a yellow substance that stains textiles and concrete. It turns well and is relatively easy to work with hand tools, though it can be variable when it comes to machining. It will generally cut cleanly but there may be some blunting or gumming effect on the cutting edges. Merbau tends to split unless pre-drilled, but holds fastenings well. Will bleed tannin’s if allowed to get wet prior to coating. Sealing of all exposed surfaces is essential.


  • Termite Resistance Resistant

  • Lyctid Susceptibility Susceptible Sapwood

  • Bushfire BAL 12.5, 19, 29 – All AS3959 required applications

  • Fire Properties Group 3 – Slightly combustible


Stock Sizing

  • 150x47 Dressed

  • 200x47 Dressed

  • 300x47 Skip Dressed

  • Solid length range 0.9m to 5.7m

  • For finished dressed and profiled products contact us.

  • Dressed Laminated Posts 95x95, 120x120, 140x140, 190x190

  • Dressed Laminated Beams 90x42, 140x42, 190x42, 240x42, 290x42, 190x65, 240x65, 260x65, 290x65, 290x80

  • Laminated length range to 7.8m