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Chan oi
Chan oi (Parashorea stellata)

Family: Dipterocarpaceae

Common names: Chan oi, Chengal, Chengal tiga banir, Cho chi, Dmar laut, Gerutu, Gerutu-gerutu, Gerutugerutu, Hao, Kabba, Kadut, Kadutni, Kadutpyu, Kai kieo, Kaunghmu, Kawthu, Kawwa, Khai kheio, Khai kieo, Khaikhieo, Khamin dam, Kheikhio, Khian sai, Kobe, Koungnhoo, Lemasa, Mai hao, Mangirawan, Maranti botino, May cho chi, May hao, Meluit, Meranti gerutu, Meranti putih, Meranti sabut, Panthitya, Pat lang khieo, Suai, Takhian-sarmporn, Tambun ranggas, Tavoy wood, Tengkawang pasir, Thakhiansarmorn, Thingadu, White meranti

Distributed in: Brunei, Burma, Cambodia, Laos, Malaysia, Thailand, Vietnam (Oceania and S.E. Asia)

Common uses: Boat building (general), Boxes and crates, Cabinetmaking, Flooring, Furniture, Heavy construction, Joinery, Light construction, Paneling, Particleboard, Plywood, Poles, Pulp/Paper products, Railroad ties, Vehicle parts, Veneer

Tree size: Trunk diameter is 150-200 cm

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isVariable figure, the textureMedium coarse to coarseand the lusterLustrous

Natural durability: Susceptible to insect attack, Susceptible to marine borer attack

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

Kiln Drying Rate: Very slow (>28 days for boards < 32 mm, to >84 days for boards >= 63 mm)

Drying Defects: Moderate twist/warp, Slight surface checking

Ease of Drying: Rapidly

Tree Identification: Bole/stem form is misshapen

Comments: General finishing qualities are rated as good

Blunting Effect: Blunting effect on machining is moderate

Boring: Easy

Cutting Resistance: Cutting Resistance with dry wood is easy

Mortising: Finishes well

Nailing: Fair to Good , Very Good to Excellent

Planing: Planes well, to a good finish

Resistance to Impregnation: Permeable sapwood

Response to hand tools: Fairly Difficult to Difficult to Work

Veneering qualities: Veneers easily, Veneers moderately easy

Steam bending: Very poor

Turning: Good results

Polishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 689 kg/m3
Bending Strength 609 954 kg/cm2
Crushing Strength 401 599 kg/cm2
Hardness 451 kg
Impact Strength 71 cm
Shearing Strength 132 kg/cm2
Stiffness 152 175 1000 kg/cm2
Tangential Shrinkage 8 %
Radial Shrinkage 4 %
Weight 673 544 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 8670 13570 psi
Density 43 lbs/ft3
Hardness 995 lbs
Impact Strength 28 inches
Maximum Crushing Strength 5706 8526 psi
Shearing Strength 1883 psi
Stiffness 2167 2494 1000 psi
Weight 42 34 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 8 %
Volumetric Shrinkage 13 %

Density (dry weight) = 38-45 lbs/cu. ft. 1
Density (dry weight) = 46-52 lbs/cu. ft.
Shrinkage, Tangential = large
Density (dry weight) = 53-60 lbs/cu. ft
Density (dry weight) = 31-37 lbs/cu. ft.
Bending strength (MOR) = medium
Modulus of Elasticity (stiffness) = high
Max. crushing strength = high
Shrinkage, Tangential = fairly large
Shrinkage, Radial = very small
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Max. crushing strength = medium
Hardness (side grain) = soft
Toughness-Hammer drop (Impact Strength) = low
Shrinkage, Volumetric = fairly large
Shrinkage, Tangential = very small
Shrinkage, Tangential = small
Shrinkage, Tangential = moderate
Shrinkage, Radial = small
Shearing strength (parallel to grain) = medium
Shearing strength (parallel to grain) = low
Bending strength (MOR) = low

Brown, W.H.,1978,Timbers of the World, No. 3 Southern Asia,TRADA, Red Booklet SeriesChowdhury, K.A., Ghosh, S.S.,1958,Indian Woods: Their identification, properties and uses Vol. I,Dilleruaceae to Elaeocarpaceae,Manager of Publications, Delhi, IndiaFundter, J.M.,1982,Names for Dipterocarp timbers and trees from Asia,Pudoc, Wageningen, NetherlandsGamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. LondonI. Soerianegara and R.H.M.J. Lemmens (Editors,1993,Plant Resources of South-East Asia 5,(PROSEA, 1,Timber trees: Major commercial timbers,Pudoc Scientific Publishers, Wageningen 1993Keating, 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,1Patterson, D.,1988,Commercial Timbers of the World, 5th Edition,Gower Technical PressPearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 volsSmitinand, T., Et al,1980,A Manual of Diplerocarpaceae of Mainland South-East Asia,Forest Department, ThailandSono, P.,1974,Merchantable Timbers of Thailand.,Forest Products Research Division, Royal Forest Department, Bangkok,,Thailand.Tewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6Titmuss, F.H.,1965,Commercial Timbers of the World,Technical Press Ltd., London, 3rd edition
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