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. Common Names Common Uses Countries of Distribution Cutting Resistance Ease of Drying Family Name Grain Heartwood Color Natural Durability Numerical Data Polishing Product Sources References Regions of Distribution Response to Hand Tools Sapwood Color Scientific Name Strength Properties Synonyms Trade Name Tree Size		Scientific Name Artocarpus gomeziana Trade Name Lakooch Family Name Moraceae Synonyms Artocarpus lakoocha Common Names Lakooch, Tampang Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Burma, India, Indonesia, Malaysia, Thailand Common Uses Boat building (general), Cabinetmaking, Canoes, Furniture, Heavy construction, Light construction, Mine timbers, Musical instruments, Oars, Poles, Railroad ties Heartwood Color Brown Yellow White Orange Yellow to golden-yellow to orange White to cream Brown Sapwood Color White Yellow White to yellow Different than heartwood Grain Even Straight Straight Natural Durability Very durable Non-resistant to termites Susceptible to insect attack Very durable Susceptible to attack from termites (Isoptera) Ease of Drying Fairly Easy Easy Tree Size Tree height is 10-20 m Tree height is 20-30 m Product Sources Pacific madrone has little commercial value for lumber, although it is well suited for many applications including turned work, bowls, novelties and souvenirs. It is available in limited supplies in lumber form on the west coast of the United States. The burl of the tree, which is very popular for furniture work and marquetry, is scarce and very expensive when available. Pacific madrone is the most plentiful hardwood in the Siskoyou Mountains and interior coast ranges of the Southwest subregion of Oregon. It is also the second most abundant hardwood in northern California, and is common in the Puget Sound and Olympic subregion in the state of Washington. Cutting Resistance Fairly Difficult to Very Difficult to saw Cutting Resistance with dry wood is difficult Response to Hand Tools Fairly Difficult to Difficult to Work Difficult to machine Polishing Poor to Very Poor Results Poor results Strength Properties Modulus of Elasticity (stiffness) = very low Max. crushing strength = medium Bending strength (MOR) = low Density (dry weight) = 38-45 lbs/cu. ft. Numerical Data Item Green Dry English Bending Strength 6111 9589 psi Density 40 lbs/ft3 Maximum Crushing Strength 3916 6397 psi Stiffness 1017 1199 1000 psi Weight 39 31 lbs/ft3 Item Green Dry Metric Bending Strength 429 674 kg/cm2 Density 641 kg/m3 Maximum Crushing Strength 275 449 kg/cm2 Stiffness 71 84 1000 kg/cm2 References Desch, H.E.,1954,Manual of Malayan Timbers (2 vols,Malayan Forest Records,no.15 Nazma,1981,A handbook of Kerala Timbers,Kerala Forest Research Institute Research Report, No.9 Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 vols Tewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6