Solid merbau, F27 stress graded, kiln dried and dressed all round with pencil round edges, for exposed beams, framing, stairs and outdoor furniture. Delivered across Melbourne by our own trucks.
This is solid merbau, graded F27, kiln dried (KD) and dressed all round (DAR) with pencil round edges, so it arrives ready to use as exposed beams, framing, stair parts and outdoor furniture. We list it in 90×42, 140×42, 185×42, 240×42 and 290×42, in a variety of lengths subject to availability. It suits builders and carpenters who want structural timber that looks finished straight off the truck.
Merbau (Intsia bijuga), also sold as kwila, is a tropical hardwood sourced largely from South East Asia, Papua New Guinea, the Pacific islands and far north Queensland. Freshly cut heartwood is yellow-orange brown and deepens and reddens with age. The grain is usually interlocked or wavy, with a coarse but even texture. The WoodSolutions merbau profile notes very little shrinkage or movement once seasoned, which backs up its reputation for being dimensionally stable and easy to work.
F27 is a seasoned stress grade, the top seasoned grade WoodSolutions lists for merbau at Structural No. 1. DAR means every face is planed, KD means it has been kiln dried, and pencil round means the sharp edges are lightly rounded. WoodSolutions notes that rounded arrises improve water run-off and help finishes adhere, so it is more than a neat look.
| Property | Detail |
|---|---|
| Species | Merbau (Intsia bijuga), also sold as kwila |
| Stress grade | F27 seasoned |
| Finish | Dressed all round, pencil round edges |
| Seasoning | Kiln dried |
| Sizes | 90×42, 140×42, 185×42, 240×42, 290×42 mm |
| Lengths | Various, subject to availability |
| Seasoned density | 860 kg/m³ |
| Above-ground durability | Class 1 (AS 5604) |
| Termites | Resistant |
| Lyctid borer | Untreated sapwood susceptible |
| Bushfire (AS 3959) | BAL-12.5, BAL-19 and BAL-29 |
Use it exposed in floor and roof framing, staircases and outdoor furniture, or anywhere inside where you want rich colour and a clean finish. With above-ground durability Class 1 and a WoodSolutions listing for BAL-12.5, BAL-19 and BAL-29 applications under AS 3959, it suits bushfire-prone sites too. Match it with our merbau decking or pre-oiled merbau decking for a deck and frame in one species.
Finish it with oil or stain: the clean, clear appearance takes both well, though WoodSolutions notes gum bleed is possible. Merbau is also prone to leaching, so plan where rainwater runs off it. WoodSolutions warns that water-soluble extractives washed out of hardwood can leave stains that are hard to remove from unsealed brickwork, concrete or paving. Our view: on a beam or stair stringer that people see up close, merbau’s colour does the work that paint does on pine.
Merbau lengths are delivered by our own trucks across Melbourne, or you can collect from the Watsonia yard; call us for a delivery price. Deliveries run six days a week, from a trailer load to a semi load, and usually arrive within 2 days. Tell us the sizes and lengths you need through our get a quote page or on (03) 9435 2555, and see our structural timber range for framing to go with it.
WoodSolutions lists merbau as suitable for BAL-12.5, BAL-19 and BAL-29 applications under AS 3959. Confirm the details with your building surveyor.
It can. Merbau is prone to leaching, so protect or seal light surfaces and direct runoff away from them. WoodSolutions also suggests a water-repellent finish on all surfaces, including freshly cut ends.
Dressed all round (planed on every face) and kiln dried.
WoodSolutions rates merbau termite resistant. Untreated sapwood is susceptible to lyctid borer.
