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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 Drying Defects Ease of Drying Family Name Grain Heartwood Color Kiln Drying Rate Kiln Schedules Mortising Moulding Natural Durability Numerical Data Painting Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Routing & Recessing Sapwood Color Scientific Name Strength Properties Texture Trade Name Tree Size Turning Scientific Name Eucalyptus microcarpa Trade Name Black box Family Name Myrtaceae Common Names Black box, Green leaved box, Grey box, Gum topped box Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Australia Common Uses Fuelwood, Heavy construction, Poles, Posts, Railroad ties Heartwood Color Red Purple Brown Pale brown Sapwood Color White Grain Interlocked Interlocked Texture Medium Coarse Fine Natural Durability Susceptible to insect attack Resistant to termites Moderately durable Durable Non-resistant to powder post beetles Perishable Non-durable Non-resistant to termites Non-resistant to marine borers Very durable Resistant to attack from powder post (Lyctid & Bostrychid) beetles Durable Kiln Schedules Dry at a slow speed Drying Defects Checking Distortion Collapse No surface checking Ease of Drying Fairly Easy Slowly Requires special attention Thick Stock Requires Care Moderately Difficult to Difficult Kiln Drying Rate Naturally dries slowly Drying rate is fairly rapid to fast Tree Size Tree height is 40-50 m Tree height is 30-40 m Trunk diameter is 100-150 cm Trunk diameter is 150-200 cm Blunting Effect Little Boring Fairly easy to very easy Carving Fairly Easy to Very Easy Cutting Resistance Easy to saw Cutting Resistance with dry wood is difficult Mortising Fairly Easy to Very Easy Moulding Fairly Easy to Very Easy Planing Very Good to Excellent Results Fairly Easy to Very Easy Fair to Good Results Resistance to Impregnation Permeable sapwood Resistant sapwood Resistant heartwood Response to Hand Tools Easy to Work Fairly Difficult to Difficult to Work Routing & Recessing Fairly Easy to Very Easy Turning Fairly Easy to Very Easy Painting Fair to Good Results Very Good to Excellent Results Fairly Easy to Very Easy Polishing Fair to Good Results Very Good to Excellent Results Fairly Easy to Very Easy Strength Properties Shrinkage, Tangential = small Shrinkage, Tangential = moderate Shrinkage, Tangential = fairly large Shrinkage, Radial = very small Shrinkage, Radial = small Shrinkage, Radial = moderate Density (dry weight) = 61< Numerical Data Item Green Dry English Density 38 lbs/ft3 Weight 56 37 lbs/ft3 Radial Shrinkage 3 % Tangential Shrinkage 7 % Item Green Dry Metric Density 608 kg/m3 Weight 897 592 kg/m3 Radial Shrinkage 3 % References Anderson, R.H.,1947,The Trees of New South Wales,New South Wales Department of Agriculture Bootle, K.R.,1971,The Commercial Timbers of New South Wales and their use,Angus & Robertson (publishers) PTY Ltd Cause, M.L., Et al,1974,The Nomenclature, Density and Lyctus - Susceptibility of Queensland,Timbers,Queensland Forestry Department Pamphlet 13 Hall, N., Et al,1970,Forest Trees of Australia,Australian Government Publishing Service, Canberra Simpfendorfer, K.J.,1975,An Introduction to trees for South Eastern Australia,Inkata Press, Melbourne, Australia Streets, R.J.,1962,Exotic Forest Trees in the British Commonwealth,Clarendon Press Oxford