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Blunting Effect
Boring
Carving
Certified Source
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Distribution Overview
Drying Defects
Ease of Drying
Environmental Profile
Family Name
Gluing
Grain
Heartwood Color
Kiln Drying Rate
Luster
Mortising
Moulding
Movement in Service
Nailing
Natural Durability
Numerical Data
Odor
Painting
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Routing & Recessing
Sanding
Sapwood Color
Scientific Name
Screwing
Staining
Texture
Trade Name
Tree Size
Turning
Veneering Qualities
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Common Names
Poplar gum
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
Australia, Fiji, Indonesia, Malaysia, Papua New Guinea, Sri Lanka
Common Uses
Boat building, Building construction, Building materials, Cabin construction, Canoes, Carvings, Construction, Crossties, Domestic flooring, Excelsior, Factory construction, Factory flooring, Flooring, Heavy construction, Joinery, Lifeboats, Mine timbers, Parquet flooring, Pile-driver cushions, Piling, Poles, Railroad ties, Shipbuilding, Sub-flooring, Utility poles, Woodwork
Environmental Profile
| Abundant/Secure |
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| Status has not been officially assessed |
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Distribution Overview
North and central Queensland, Australia, though fairly sparse.
Heartwood Color
| Red |
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| Brown |
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| Pink |
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| Yellow |
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| Purple |
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| Black |
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| Orange |
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| Reddish brown |
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Sapwood Color
| White |
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| Yellow |
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| Pink |
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| Red |
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| Green/Grey |
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| Brown |
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| Whitish |
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1 inch (25 mm) wide.
Grain
Texture
Luster
Natural Durability
| Susceptible to insect attack |
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| Moderately durable |
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| Non-resistant to powder post beetles |
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| Non-durable |
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| Resistant to powder post beetles |
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| Non-resistant to termites |
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| Perishable |
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| Durable |
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| Non-resistant to marine borers |
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| Resistant to termites |
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| Very resistant to termite attack. |
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Odor
| No specific smell or taste |
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Drying Defects
| Collapse |
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| Internal Honeycombing Possible |
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| Distortion |
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| Checking |
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| Splitting |
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Ease of Drying
| Moderately Difficult to Difficult |
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| Fairly Easy |
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| Rapidly |
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| Slowly |
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The wood is reported to season well but requires some care to minimize degrade
Kiln Drying Rate
| Naturally dries quickly |
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| Naturally dries slowly |
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| Naturally dries at a moderate speed |
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| Drying rate is fairly rapid to fast |
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Tree Size
| Sapwood width is 0-5 cm |
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| Tree height is 60-70 m |
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| Tree height is 40-50 m |
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| Tree height is greater than 70 m |
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| Bole length is 20-30 m |
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| Tree height is 30-40 m |
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| Bole length is 30-40 m |
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| Trunk diameter is 200-250 cm |
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| Trunk diameter is 150-200 cm |
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| Trunk diameter is 100-150 cm |
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| Tree height is 50-60 m |
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| Bole length is 40-50 m |
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| Bark width is 5-10 mm |
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| Bole length is 10-20 m |
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| Tree height is 0-10 m |
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| Tree height is 10-20 m |
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| Trunk diameter is 250-300 cm |
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Certified Source
Comments
Bark tannin content is estimated at 30 to 32 percent
Blunting Effect
| Moderate |
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| Little |
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| Moderate effect |
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Boring
| Fairly easy to very easy |
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| Fair to good results |
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| Poor results |
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Carving
| Fair to Good Results |
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| Fairly Easy to Very Easy |
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| Fairly difficult to carve |
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Cutting Resistance
| Easy to saw |
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| Fairly Difficult to Very Difficult to saw |
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| Moderate to saw |
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| Difficult to saw |
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| Difficult to saw |
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Gluing
| Fairly Easy to Very Easy |
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| Fair to Good Results |
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Mortising
| Fair to Good Results |
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| Very Good to Excellent Results |
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| Fairly Easy to Very Easy |
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| Poor mortising properties |
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Moulding
| Fair to Good Results |
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| Fairly Easy to Very Easy |
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| Difficult moulding qualities |
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Movement in Service
| Excellent Stability - Small Movement |
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| Fair to Good Stability - Medium Movement |
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| Small |
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Nailing
| Fair to Good Results |
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| Pre-Boring Recommended |
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| Fairly Easy to Very Easy |
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| Very Good to Excellent Results |
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| Holds nails well |
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| Difficult to nail |
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Planing
| Fairly Easy to Very Easy |
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| Fair to Good Results |
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| Very Good to Excellent Results |
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| Fairly Difficult to Very Difficult |
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Response to ordinary tools is poor. Sharp cutting edges are recommended for smooth, clean surfaces in planing
Resistance to Impregnation
| Resistant heartwood |
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| Permeable sapwood |
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| Resistant sapwood |
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| Sapwood is treatable |
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| Heartwood is resistant |
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Response to Hand Tools
| Easy to Work |
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| Fairly Difficult to Difficult to Work |
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| Difficult to machine |
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Routing & Recessing
| Fair to Good Results |
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| Fairly Easy to Very Easy |
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| Difficult in both routing and recessing |
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Sanding
| Fairly Easy to Very Easy |
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| Fair to Good Results |
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| Very Good to Excellent Results |
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| Poor characteristics |
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Screwing
| Fair to Good Results |
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| Very Good to Excellent Results |
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| Fairly Easy to Very Easy |
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Turning
| Poor to Very Poor Results |
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| Fair to Good Results |
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| Fairly Easy to Very Easy |
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| Turning qualities are poor |
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Veneering Qualities
| Suitable for peeling |
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| Suitable for slicing |
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Painting
| Fair to Good Results |
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| Very Good to Excellent Results |
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| Fairly Easy to Very Easy |
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Polishing
| Very Good to Excellent Results |
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| Fairly Easy to Very Easy |
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| Fair to Good Results |
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Staining
| Fair to Good Results |
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| Very Good to Excellent Results |
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| Fairly Easy to Very Easy |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 12152 | 16464 | psi |
| Crushing Strength | 2215 | 2342 | psi |
| Density | | 53 | lbs/ft3 |
| Hardness | | 1617 | lbs |
| Impact Strength | 251 | 266 | inches |
| Maximum Crushing Strength | 7507 | 8908 | psi |
| Static Bending | | 9898 | psi |
| Stiffness | | 1705 | 1000 psi |
| Toughness | | 136 | inch-lbs |
| Specific Gravity | 0.83 | 0.88 | |
| Weight | 53 | 43. | lbs/ft3 |
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| Item | Green | Dry | Metric |
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| Bending Strength | 854 | 1157 | kg/cm2 |
| Crushing Strength | 155 | 164 | kg/cm2 |
| Density | | 849 | kg/m3 |
| Hardness | | 733 | kg |
| Impact Strength | 637 | 675 | cm |
| Maximum Crushing Strength | 527 | 626 | kg/cm2 |
| Static Bending | | 695 | kg/cm2 |
| Stiffness | | 119 | 1000 kg/cm2 |
| Toughness | | 156 | cm-kg |
| Specific Gravity | 0.83 | 0.88 | |
References
Bolza, E., Kloot, N. H. 1963. The Mechanical Properties of 174 Australian Timbers. Technological Paper No. 25. Division of Forest Products, Center for Scientific and Industrial Organization (CSIRO, Melbourne, Australia
Keating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1
Kloot, N.H. and E. Bolza. 1961. Properties of Timbers Imported into Australia. Division of Forest Products Technological Paper No. 12. Commonwealth scientific and Industrial Research Organization, Melbourne, Australia
Smith, W.J., W.T. Knyaston, M.L. Cause, and J.G. Grimmett. 1991. Building Timbers - Properties and Recommendations for their Uses in Queensland. Technical Pamphlet No. 1. Queensland Forest Service, Department of Primary Industries, Queensland, Australia.
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