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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 Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Ease of Drying Family Name Gluing Grain Heartwood Color Kiln Drying Rate Kiln Schedules Luster Nailing Natural Durability Numerical Data Planing Polishing References Regions of Distribution Resistance to Splitting Response to Hand Tools Sapwood Color Scientific Name Staining Strength Properties Texture Trade Name Tree Identification Tree Size Veneering Qualities Scientific Name Ganua motleyana Trade Name Arupa Family Name Sapotaceae Common Names Arupa, Balam, Balem, Bangku, Baringin, Bengku, Gata-gata, Getah merah, Getah perca, Gofiri, Hangkang, Jengkot, Katiau, Kawang, Ketiau, Kibangkong, Kisawo, Kuma, Kume, Maneo keaaf, Mayang, Mergetahan, Nantu, Nato, Njatuh, Nyato, Nyatoh, Nyatoh ketiau, Nyatu, Padang, Punti, Sau payo, Semaram, Siki, Sodu-sodu, Soko, Suntai, Tanjungan, Tofiri Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Malaysia Common Uses Cabinetmaking, Furniture, Joinery, Light construction, Plywood, Shingles, Veneer: decorative Heartwood Color Pink Red Brown Yellow to golden-yellow to orange Reddish brown Pale red to pink Pale brown Brown, red, dark reddish brown with nearly black stripes after prolonged exposure Brown Sapwood Color Brown Paler than heartwood Grain Interlocked Closed Even Straight Figure Wavy Distinct (figure) Interlocked Straight Wavy Distinct figure Texture Coarse Fine to medium Medium Medium to coarse Luster Dull Slightly lustrous Lustrous Natural Durability Non-durable Susceptible to insect attack Perishable Non-resistant to termites Non-resistant to powder post beetles Moderately durable Resistant to wood staining fungal attack Resistant to attack from powder post (Lyctid & Bostrychid) beetles Kiln Schedules Kiln Drying Rate (in days) is rapid Drying (speed) is fast Dry at a moderate speed Drying Defects Moderate surface checking Moderate twist/warp Ease of Drying Difficult Kiln Drying Rate Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm) Tree Identification Bole/stem form is cylindrical Bole/stem form is buttressed Bole/stem form is straight Bole/stem form is not buttressed Tree Size Tree height is 20-30 m Tree height is 10-20 m Tree height is 0-10 m Bark width is 5-10 mm Tree height is 30-40 m Blunting Effect Blunting effect on machining is fairly severe Cutting Resistance Cutting Resistance with green wood is easy Cutting Resistance with dry wood is easy Gluing Easy to glue Nailing Fairly Easy to Very Easy Planing Planes well, to a good finish Easy to plane Difficult to plane Resistance to Splitting Poor Response to Hand Tools Easy to Work Easy to machine Veneering Qualities No steaming needed during bolt preparation. Good gluing qualities Easy to cut Polishing Satisfactory results Good results Staining Finish is generally good Strength Properties Shrinkage, Tangential = very small Shrinkage, Radial = small Density (dry weight) = 46-52 lbs/cu. ft. Numerical Data Item Green Dry English Density 47 lbs/ft3 Weight 46 37 lbs/ft3 Radial Shrinkage 3 % Tangential Shrinkage 4 % Item Green Dry Metric Density 753 kg/m3 Weight 737 592 kg/m3 Radial Shrinkage 3 % References Brown, W.H.,1978,Timbers of the World, No. 4 South East Asia,TRADA, Red Booklet Series Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15 Lee, Y.H., Lopez, D.T.,1968,The Machining Properties of some Malayan Timbers,Malayan Forester,3,pp194-210 Martawijaya, A., Kadir, K., Kartasujana, I.,1986,Indonesian Wood Atlas. Vol.1.,Department of Forestry Agency for Forestry Research and Development.,Bogar-Indonesia Menon, P.K.B.,1959,The wood anatomy of Malayan timbers: commercial timbers, 3. Light,hardwoods,Malaysian Forest Research Institute Kepong, Research Pamplet, No. 27. Whitmore, T.C. (Ed.,1972,Tree Flora of Malaya A Manual for Foresters Volume 1,Forest Department Ministry of Agriculture and Lands Malaysia