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Toon
Toon (Cedrela toona)

Family: Meliaceae

Common names: Australian cedar, Australian red cedar, Australian red-cedar, Belandi, Bobich, Burm, Burma cedar, Cedre rouge, Cedro, Chikado, Devdari, Drawi, Epi, Goria nim, Grawa, Henduri poma, Horeni, Huruk, Indian cedar, Ingoe, Kalkilingi, Kapere, Kashitka, Katangai, Kempu gandagheri, Ki beureum, Kujya, Kuruk, Ladet, Linoe, Lud, Madagiri vembu, Mafus, Maha limbu, Mahalimo, Mahanim, Maharim, Mahlun, Mali, Moulmein cedar, Moulmem cedar, Mufus, Ni, Noge, Poma, Queensland red cedar, Red cedar, Redani, Sandani vembu, Shuruzbed, Simal, Soeren, Somso, Soren, Suli, Suntang putch, Tawtama, Thitkado, Todu, Toon, Toona, Tseekado, Tundu, Tuni, Vedi vembu, Yom hom, Yomhom, Yomhorm, Youhom, Youhorm

Distributed in: Australia, Burma, Hawaii [US], India, Indonesia, Kenya, Laos, Myanmar, Pakistan, Papua New Guinea, South Africa, Tanzania, Thailand, Uganda (Africa, Oceania and S.E. Asia)

Distribution overview: India and Burma as well as scattered in evergreen and moist, mixed deciduous forests throughout Southeast Asia including Australia.

Common uses: Baskets, Bedroom suites, Bent Parts, Blinds, Boat building (general), Boat building, Boxes and crates, Building materials, Cabinetmaking, Canoes, Carvings, Casks, Chairs, Chests, Cigar boxes, Clogs, Concealed parts (Furniture), Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Door, Dowell pins, Dowells, Drawer sides, Drum sticks, Excelsior, Exterior trim & siding, Exterior uses, Figured veneer, Fine furniture, Flooring: industrial heavy traffic, Food containers, Furniture , Furniture, Interior trim, Joinery (external): ground contact, Joinery, Light construction, Matches, Mine timbers, Model airplanes, Musical instruments , Musical instruments, Ornamental work , Packing cases, Paneling , Paneling, Planks, Plywood, Poles, Pulp/Paper products, Shingles, Shutters, Sporting Goods, Turnery, Vehicle parts, Veneer, Veneer: decorative, Windows

Environment profile: Secure in many areas of its range

Tree size: Tree height is 40-50 m

Colors: the heart isReddish brown, Yellowand the sapwoodWhite to yellow, Yellow.The grain isWavy, the textureUnevenand the lusterLustrous

Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to attack from termites (Isoptera)

Odor: The wood has a strong, fragrant, long-lasting spicy odor. It has no characteristic taste.

LightInduced Color Change: Darker

Kiln Schedules: Kiln Drying Rate (in days) is rapid

Kiln Drying Rate: Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm)

Drying Defects: Slight cupping, Slight surface checking

Ease of Drying: Reconditioning Treatement

Tree Identification: Bole/stem form is straight

Comments: Brittleheart and tension wood may be presentGeneral finishing qualities are rated as good

Blunting Effect: Moderate

Boring: Fairly easy to very easy

Carving: Very Good to Excellent Results

Cutting Resistance: Easy to saw

Gluing: Moderate gluing properties

Mortising: Fair to Good

Moulding: Poor to Very Poor

Movement in Service: Poor to Very Poor

Nailing: Holds satisfactorily, Pre-Boring Recommended

Planing: Slight dulling of cutters

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Easy to machine

Sanding: Good sanding finish Some material may produce a woolly finish

Veneering qualities: Pieces sliced into veneers are reported to often have a fine silver-grain ray figure

Steam bending: Poor

Screwing: Pre-boring recommended, Screwing yields satisfactory results; Turning: Poor to Very Poor Results

Painting: Very Good to Excellent; Polishing: Satisfactory; Staining: Very Good to Excellent; Varnishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,38 0,47
Density 528 kg/m3
Bending Strength 492 778 kg/cm2
Crushing Strength 247 389 kg/cm2
Hardness 363 kg
Impact Strength cm
Shearing Strength 81 kg/cm2
Stiffness 78 94 1000 kg/cm2
Tangential Shrinkage 5 %
Radial Shrinkage 3 %
Weight 496 400 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 7003 11071 psi
Density 33 lbs/ft3
Hardness 802 lbs
Maximum Crushing Strength 3522 5542 psi
Shearing Strength 1159 psi
Stiffness 1120 1346 1000 psi
Specific Gravity 0.38 0.47
Weight 31 25 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 5 %
Volumetric Shrinkage 11 %

Density (dry weight) = 23-30 lbs/cu. ft. 0
Modulus of Elasticity (stiffness) = very low 1
Bending strength (MOR) = low 1
Density (dry weight) = 31-37 lbs/cu. ft.
Max. crushing strength = low
Shrinkage, Radial = very small
Shrinkage, Radial = small
Max. crushing strength = medium
Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Tangential = very small
Shrinkage, Tangential = small
Shearing strength (parallel to grain) = very low
Shrinkage, Tangential = moderate
Shearing strength (parallel to grain) = low
Bending strength (MOR) = medium
Modulus of Elasticity (stiffness) = low
Hardness (side grain) = very soft
Hardness (side grain) = soft
Density (dry weight) = 46-52 lbs/cu. ft.
Density (dry weight) = 15-22 lbs/cu. ft.
Weight = medium
Modulus of Elasticity (stiffness) = high
Hardness = medium
Compression strength (parallel to grain) = low
Bending strength (MOR) = high
The wood has high density and resists denting and marring about as well as white oak or birch

Ali, M.O., Yakub, M.D. and Bhattacharjee, D.K.,1972,Physical and mechanical properties of Toon, Bhadi and Eucalyptus,Bangladesh FRI, Chittagong Bulletin 3 Timber Physics SeriesAustralia - N.S.W. Forestry Commission,1988,Furniture Timbers of New South Wales,Forest Commission, N.S.W., Aust. Tech. Publication No.1Banks, C.H., Schoeman, J.P., Otto, K.P.,1977,The Mechanical Properties of Timbers with particular reference to South,Africa,South African Forestry Research Institute Bulletin,(Ed.,Schoeman, J.P. 1973 & Otto K.P. 1976,No.48Boas, I.H.,1947,The Commercial Timbers of Australia - Their Properties and Uses,Council for Scientific and Industrial Research, MelbourneBolza, E., Kloot, N.H.,1976,The Mechanical Properties of 81 New Guinea Timbers,C.S.I.R.O. Div. Building Res. Tec.Paper (2nd series) 11Bolza, E.,1975,Properties and Uses of 175 Timber Species from Papua New Guinea and West,Irian,C.S.I.R.O. Div. Building Research Report,no.34Bootle, K.R.,1971,The Commercial Timbers of New South Wales and their use,Angus & Robertson (publishers) PTY LtdBrown, W.H.,1978,Timbers of the World, No. 8 Australasia,TRADA, Red Booklet SeriesCameron, S.,1945,Some Notes on Utilisation of Timbers in the South-West Pacific,New Zealand Journal of Forestry Volume 5(2) 117-127Carrapiett, J.B.,1960,Notes on ornamental timbers of Burma,Burmese Forester,10(1,pp37-53Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Da Costa, E.W.B., Osborne, L.D.,1967,Comparative decay resistance of 26 New Guinea timber species in,accelerated laboratory tests,Comm. Forestry Review 46(1) pp63-74Desch, H.E.,1948,The Cedars,Wood 13(2) pp40-3EcoTimber International, San Francisco, California. Personal Communication, 1993.Eddowes, P. J.1977.Commercial Timbers of Papua New Guinea - Their Properties and Uses.Forest Products Research Center, Office of Forests, Department of Primary Industry, Papua New Guinea.Eddowes, P.J.,1977,Commercial Timbers of Papua New Guinea: Their Properties and Uses,Hebano Press, Port Moresby, Papua New GuineaGay, F.J., Et al,1955,Standard laboratory colonies of termites for evaluating the resistance of,timber, timber preservatives and other materials to termite attack.,C.S.I.R.O., Australia Bulletin,No.277Howard, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.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,1Kraemer, J.H.,1951,Trees of the Western Pacific Region,West Lafayette, Indiana U.S.A.Limaye, V. D.1954.Grouping of Indian Timbers and their Properties, Uses and Suitability.Indian Forest Records, New Series.Timber Mechanics, Vol. 1, No. 2, Forest Research Institute, Dehra Dun, India.Limaye, V. D. and B. R. Sen.1956.Weights and Specific Gravities of Indian Woods.Indian Forest Records, New Series. Timber Mechanics, Vol. 1, No. 4.Manager of Publications (Publisher, Delhi.Lincoln, W. A.1986.World Woods in Color.Linden Publishing Company, Inc., Fresno, California.McCoy-Hill, M.,1954,Timbers of Tanganyika - Brachylaena hutchinsii and Pterocarpus angolensis,Timber Technology,62(2185, p559Papua New Guinea Department of Forests,1972,New Horizons,Forestry in Papua New Guinea,Jacaranda Press PTY Ltd, BrisbanePoynton, R.J.,1957,Notes on Exotic Forest Trees in South Africa (Second Edition, Revised,South African Forestry Department Bulletin No.38Scott, M.H.,1935,Weights of South African Growth Timbers,South African Department of Agriculture and Forestry Bulletin,No.145,Forest Products Institute, Forestry Series No.1Sono, P.,1974,Merchantable Timbers of Thailand.,Forest Products Research Division, Royal Forest Department, Bangkok,,Thailand.Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Tewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6The Ecological Trading Company Limited (ETC, Newcastle upon Tyre, United Kingdom.Troup, R.S. 1909. Indian Woods and Their Uses. The Indian Forest Memoirs, Economic Products Series, Volume 1, No. 1. Superintendent, Government Printing, Calcutta, India.
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