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Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. Blunting Effect Boring Comments Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Ease of Drying Family Name Grain Heartwood Color Kiln Schedules Luster Mortising Natural Durability Numerical Data Planing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Sanding Sapwood Color Scientific Name Strength Properties Synonyms Texture Trade Name Tree Identification Tree Size Turning Scientific Name Cotylelobium malayanum Trade Name Awang Family Name Dipterocarpaceae Synonyms Cotylelobium flavum Common Names Awang, Bukit, Damar resak, Gagil, Giam, Giam padi, Giyam putih, Rasak, Rasak bukit, Rasak gunung, Resak, Resak babalok, Resak batu, Resak bukit, Resak daun kechil, Resak daun kecil, Resak daun lebar, Resak duren, Resak durian, Resak gagil, Resak gunung, Resak hitam, Resak jawai, Resak kecil daun, Resak kelabu, Resak keranji, Resak linga, Resak mendawe, Resak mentotoh, Resak padi, Resak paya, Resak rembaga, Resak tembaga, Resak tempurong Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Brunei, Malaysia, Thailand Common Uses Boat building (general), Boat building: framing, Bridge construction, Door, Flooring, Furniture, Heavy construction, Joinery (external): ground contact, Joinery, Light construction, Marine construction, Millwork, Mine timbers, Oars, Piling, Poles, Posts, Railroad ties, Turnery, Wharf construction Heartwood Color White Brown Red Yellow to golden-yellow to orange Reddish brown Pale brown Brown Sapwood Color Red White Pink Well defined White to yellow Paler than heartwood Different than heartwood Grain Interlocked Figure Straight Even Distinct (figure) Mottled (figure) Rays (figure) Texture Medium Fine Luster Medium Low Natural Durability Durable Very durable Susceptible to marine borer attack Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Sapwood is susceptible to wood staining fungal attack Resistant to attack from termites (Isoptera) Resistant to attack from marine borers Pinworms (ambrosia beetles) are commonly present Kiln Schedules Drying (speed) is fast Drying Defects Moderate surface checking Ease of Drying Difficult Tree Identification Bole/stem form is misshapen Bole/stem form is buttressed Tree Size Tree height is 10-20 m Tree height is 0-10 m Bark width is greather than 50 mm Comments General finishing qualities are rated as good Blunting Effect Blunting effect on machining is slight Blunting effect on machining is fairly severe Boring Easy Cutting Resistance Cutting Resistance with dry wood is difficult Easy to saw Mortising Finishes well Planing Planes well, to a good finish Resistance to Impregnation Heartwood is resistant Heartwood is highly resistant Response to Hand Tools Easy to Work Fairly Difficult to Difficult to Work Difficult to machine Sanding Good sanding finish Turning Easy to turn Strength Properties Density (dry weight) = 61-67 lbs/cu. ft. Density (dry weight) = 53-60 lbs/cu. ft. Density (dry weight) = 46-52 lbs/cu. ft. Density (dry weight) = 67-75 lbs/cu. ft. Numerical Data Item Green Dry English Density 52 lbs/ft3 Weight 51 45 lbs/ft3 Item Green Dry Metric Density 833 kg/m3 References Ashton, P.S.,1964,A manual of the Dipterocarp trees of Brunei State,O.U.P. London Browne, F.G.,1955,Forest Trees of Sarawak and Brunei and their Products.,Government Printing Office, Kuching, Sarawak Brown, W.H.,1978,Timbers of the World, No. 4 South East Asia,TRADA, Red Booklet Series Burgess, P.F.,1966,Timbers of Sabah,Sabah Forest Record, no.6 Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison. Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15 Fundter, J.M.,1982,Names for Dipterocarp timbers and trees from Asia,Pudoc, Wageningen, Netherlands I. 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 1993 Meijer, W., Wood, G.H.S.,1964,Dipterocarps of Sabah (North Borneo,Sabah Forest Department, Forest Record No.5 Tamolang, F.N., Martawijaya, A., Kartasujana, I., Kadir, K., Parwira, S.,1992,Indonesian Wood Atlas Volume II,Department of Forestry, Agency for Forestry Research and Development,,Bogor-Indonesia