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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 Carving 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 Nailing Natural Durability Numerical Data Painting Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Routing & Recessing Sanding Sapwood Color Scientific Name Screwing Texture Toxicity Trade Name Tree Size Turning Varnishing Scientific Name Engelhardtia chrysolepis Trade Name Taiwan engelhardtia Family Name Juglandaceae Common Names Cheo, Cheo tia, Taiwan engelhardtia Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Cambodia, China, Laos, Myanmar, Thailand, Vietnam Common Uses Beams, Bedroom suites, Boxes and crates, Building materials, Cabinetmaking, Casks, Core Stock, Decorative plywood, Decorative veneer, Domestic flooring, Drawer sides, Excelsior, Factory construction, Factory flooring, Figured veneer, Flooring, Furniture , Joinery, Joists, Kitchen cabinets, Living-room suites, Office furniture, Packing cases, Parquet flooring, Plain veneer, Plywood, Poles, Porch columns, Radio - stereo - TV cabinets, Rough construction, Structural plywood, Structural work, Studs, Sub-flooring, Turnery, Utility plywood, Utility poles, Veneer Environmental Profile Little threat to its survival, at least in the immediate future Generally secure within its natural habitat Data source is World Conservation Monitoring Center Distribution Overview Southeast Asia (Burma, Cambodia, Laos, Thailand, China, and Taiwan). Heartwood Color Yellow Brown Orange Red Grey brown Sapwood Color White Yellow Color not distinct from heartwood Grain Even Straight Straight Texture Medium Coarse Even textured Coarse Luster Low Medium Natural Durability Durable Very durable Resistant to termites Susceptible to insect attack Resistant to powder post beetles Non durable Should be protected from weather and ground contact Toxicity Some toxic effects Drying Defects Splitting Checking Distortion Warping can be expected End splitting Ease of Drying Moderately Difficult to Difficult Rapidly Slowly Little degrade if dried properly Easy Dries at a fairly rapid rate Kiln Drying Rate Drying rate is slow Very slow Naturally dries at a moderate speed Naturally dries quickly Slow Tree Size Tree height is 40-50 m Sapwood width is 5-10 cm Bark width is 5-10 mm Bole length is 20-30 m Sapwood width is 0-5 cm Bark width is 15-20 mm Tree height is 30-40 m Bark width is 10-15 mm Trunk diameter is 150-200 cm High buttresses and is rarely of good form Blunting Effect Moderate Medium effect Boring Fairly easy to very easy Fair to good results Satisfactory properties Carving Fairly Easy to Very Easy Satisfactory results Cutting Resistance Fairly Difficult to Very Difficult to saw Moderate to saw Good sawing properties Cutting edges are dulled rapidly Gluing Surface Preparation Fair to Good Results Fairly Difficult to Very Difficult Carefully Controlled Conditions Glues well Mortising Fairly Easy to Very Easy Satisfactory mortising properties Moulding Fairly Easy to Very Easy Satisfactory properties Nailing Fairly Easy to Very Easy Fair to Good Results Holds nails well Planing Fair to Good Results Fairly Easy to Very Easy Very Good to Excellent Results The wood is reported to generally plane well, but surfaces are occasionally fibrous. Resistance to Impregnation Resistant heartwood Permeable sapwood Resistant sapwood Sapwood is moderately resistant Heartwood is resistant Response to Hand Tools Easy to Work Fairly Difficult to Difficult to Work Fairly good Routing & Recessing Fairly Easy to Very Easy Sanding Fairly Easy to Very Easy Satisfactory Screwing Fairly Easy to Very Easy Turning Fairly Easy to Very Easy Responds satisfactorily Painting Surface Preparation Fair to Good Results Fairly Easy to Very Easy Polishing Fair to Good Results Very Good to Excellent Results Varnishing Fair to Good Results Fairly Easy to Very Easy Numerical Data Item Green Dry English Bending Strength 8820 13328 psi Maximum Crushing Strength 4410 7595 psi Shearing Strength 1862 psi Stiffness 1519 1764 1000 psi Item Green Dry Metric Bending Strength 620 937 kg/cm2 Maximum Crushing Strength 310 533 kg/cm2 Shearing Strength 130 kg/cm2 References 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