COVID-19 alert: Read about changed restrictions for businesses in Greater Brisbane from 6pm, Monday 11 January.
- Medium-sized hardwood tree.
- Grows to 35m high with a spread of 6m.
- Bole (trunk) is straight and somewhat buttressed.
- Bark is reddish-brown or light brown, and occasionally scaly on larger trees.
- Native to the tropical rainforests of North Queensland.
- Occurs from Mackay to Atherton.
- Heartwood is very pale pink, pink-brown or straw to golden brown.
- Sapwood is pale to light brown and not easily distinguished from the heartwood.
- Usually very straight grained.
- Construction: plywood, internal covered flooring.
- Decorative: panelling, cupboard fittings and mouldings, carving, stained and polished furniture.
- Others: boat planking, light spars and oars, brush stocks, fishing reels, toys, crates and cases.
- Density: 480kg/m3 at 12% moisture content; about 2.1m3 of seasoned sawn timber per tonne.
- Strength groups: (S7) unseasoned, (SD8) seasoned.
- Stress grades: F4, F5, F7, (unseasoned); F4, F5, F7, F8 (seasoned) when visually stress graded according to AS 2082—2000: Timber—Hardwood—visually stress-graded for structural purposes.
- Joint groups: SD4 seasoned.
- Shrinkage to 12% MC: 5.1% (tangential), 2.0% (radial).
- Unit shrinkage: 0.28% (tangential)—this value applies to timber reconditioned after seasoning.
- Durability above-ground: Class 4 (life expectancy less than 7 years).
- Durability in-ground: Class 4 (life expectancy less than 5 years).
- Lyctine susceptibility: untreated sapwood susceptible to lyctid borer attack.
- Termite resistance: not resistant.
- Preservation: sapwood will impregnate with preservative.
- Seasoning: seasons well using conventional air and kiln.
- Hardness: very soft (rated 6 on a 6-class scale) to indent and work with hand tools.
- Machining: easy to work due to its softness; excellent carving timber.
- Fixing: holds nails and screws well.
- Gluing: glues well.
- Finishing: paints, stains, and polishes well.
- Sapwood: light brown.
- Heartwood: pink-brown to yellow-brown.
- Texture: medium and uniform, straight grain.
- Vessels: solitary, and short radial multiples up to 3 cells, uniform diffuse distribution, visible without a lens; vessel lines prominent on dressed surfaces.
- Parenchyma (soft tissue):not visible at low magnification.
- Rays: fine, visible with 10× lens; ray fleck prominent without magnifying on radial surfaces.
- Burning splinter test: match-size splinter burns to a filament of black ash.
- Odour: freshly cut wood has a slight spicy aroma.
Research and resources
- Boland, DJ, Brooker, MIH, Chippendale, GM, Hall, N, Hyland, BPM, Johnston, RD, Kleinig, DA and Turner, JD 2006, Forest trees of Australia, 5th ed., CSIRO Publishing, Collingwood Australia.
- Bootle, K 2005, Wood in Australia: Types, properties and uses, 2nd ed., McGraw-Hill, Sydney.
- Ilic, J 1991, CSIRO atlas of hardwoods, Crawford House Press, Bathurst, Australia.
- Queensland Government, DAF 2018, Construction timbers in Queensland: Properties and specifications for satisfactory performance of construction timbers in Queensland. Class 1 and Class 10 buildings, Books 1 & 2, Department of Agriculture and Fisheries, Brisbane.
- Standards Australia, 2000, AS 2082—2000: Timber—Hardwood—Visually stress-graded for structural purposes, Standards Australia International, Strathfield, NSW.
- Last reviewed: 12 Dec 2018
- Last updated: 12 Dec 2018