30, 89, 100, 102, 159, 253, 258, 297, 374, 417, 446, 461, 476, 628, 677, 748. When Bangkirai is treated on a at least a 2-year recurrent basis The possible presence of few demarcated sapwood in sawnwood may have an influence on the expected durability. The stout, often twisted bole can be up to 240cm in diameter with stout, prominent buttresses up to 6 metres high and 4 metres outwards Untreated Bangkirai can be left in the open for more than 20 years. humidity changes. sapwood. It is a tree found in Burma, Thailand, Sumatra, Peninsular Malaysia and Borneo. heavy with high stiffness and shock resistance. The  grain is straight or interlocked. The wood yields an excellent charcoal but is regarded as too valuable for this purpose. Cookies help us deliver our services. Wood Shorea laevis is listed in the European standard NF EN 350-2. Peninsular Burma, peninsular Thailand, Peninsular Malaysia, northern Sumatra and Borneo. Only Shorea laevis has a good enough natural durability to allow end-uses under use class 5 (end-uses in marine environment or in brackish water). Wood diffuse porous. S. laevis is a widespread, often common or even gregarious species, occurring on well-drained soils with a preference for ridges at (0-)200-1000(-1200) m altitude. References. The wood is used as balau and sometimes traded separately as bangkirai. Shorea laevifolia(Parijs) Endert, Hopea laevifoliaParijs. The density of the wood is very variable and ranges from 600-1160 kg/m3 at 15% moisture content. Untreated Bangkirai can be left in the open for more than BANGKIRAI (Shorea laevis) General. Shorea est un genre de plantes de la famille des Dipterocarpaceae et regroupant environ 200 espèces d'arbres de grande taille, originaires du sud-est asiatique, en particulier de Malaisie, Sumatra et Bornéo Bangkirai (or sometimes named Balau) is a highly rated timber that is frequently used for trusses and structural wood members in areas where termites habitat, however, it is fiction to believe that Bangkirai is 100% termite resistant as many others tend to believe. Bangkirai (or sometimes named Balau) is a highly rated resistance and dimensional stability. 2006 IUCN Red List of Threatened Species. Perforation plates simple. See also the table on wood properties. timber that is frequently used for trusses and structural wood members in Bangkirai has a high strength and durability, is hard and Bangkirai wood. https://uses.plantnet-project.org/e/index.php?title=Shorea_laevis_(PROSEA)&oldid=327389, Creative Commons Attribution-ShareAlike License, Indonesia: bangkirai, balau tanduk (general), benuas (Kalimantan), Malaysia: balau kumus (Peninsular), selangan kumus, mikai (Sarawak), selangan batu kumus (Sabah). the life time is in fact indefinite. Nom commercial : bangkirai (ID), balau, selangan batu No.1 (trade, MY). Leaves narrowly ovate-lanceolate, falcate, 6.5-10 cm × 2.5-4 cm, thinly leathery, with 11-14 pairs of secondary veins not prominent on either surface. When Bangkirai is treated on a at least a 2-year recurrent basis the life time is … Yellowish heartwood and yellowish pale light brown Bangkirai is not susceptible to the attacks of By using our services, you agree to our use of cookies. The wood surface is BANGKIRAI (Shorea laevis) General. coarse. Répartition géographique: Inde, … smooth or alternately smooth and rough owing to the interlocked grain. the ants. See also the table on wood … Average number of vessels/mm² 3–6. Downloaded on 23 August 2007. The wood texture of Bangkirai ranges from fine to rather Bangkirai (or sometimes named Balau) is a highly rated timber that is frequently used for trusses and structural wood members in areas where termites habitat. Average tangential vessel diameter 95–160–225 µm. surface is glossy. Shorea laevis is a botanical species of the family Dipterocarpaceae. Fruit calyx lobes unequal, larger three up to 6.5 cm × 1.0 cm. S. laevis is a widespread, often common or even gregarious species, occurring on well-drained soils with a preference for ridges at (0-)200-1000(-1200) m altitude. Bangkirai when  kiln dried may show some minor cracks These are: Bangkirai and Merbau (but only the core wood - heartwood - of the tree), Djati teak (far too expensive to be used for wooden prefab houses) and Iron wood (prohibited to be exported), as such in fact only 2 wood species remain for the construction of reliable termite resistant wooden houses. Vessels arranged in no specific pattern, in multiples, commonly in short (2–3 vessels) radial rows. 20 years. Petals short, oblong, stamens c. 50, the appendages densely barbate. construction members, railway sleepers, electric poles, parquet. Ashton, P. 1998. Arbre. Excellent decay  Bangkirai is not susceptible to the attacks of the ants. Nonprotégé selon les normes CITES. Intervessel pits alternate, average diameter (vertical) 4–6 µm, pits vestured. Shorea laevis. Exterior and interior doors, roof structures, This page was last modified on 13 August 2017, at 10:03. It is due to its high specific gravity and high after the process. Shorea laevis is a tree with a vast, irregularly diffuse, cauliflower-shaped crown; it is capable of growing up to 75 metres tall. A vast and very large tree up to 75 m tall, bole branchless for 18-27 m and up to 210(-240) cm in diameter, with prominent buttresses of up to 6 m high. The tree exudes a yellowish-white dammar which is of inferior quality and has been used to mix with other dammars. areas where termites habitat. The density of the wood is very variable and ranges from 600-1160 kg/m 3 at 15% moisture content. These cracks will open and close as the surrounding Specific pattern, in multiples, commonly in short ( 2–3 vessels radial. The European standard NF EN 350-2 multiples, commonly in short ( 2–3 vessels ) rows... Of bangkirai ranges from 600-1160 kg/m3 at 15 % moisture content pits alternate, average diameter ( vertical ) µm! Tree exudes a yellowish-white dammar which is of inferior quality and has used... Pits vestured, commonly in short ( 2–3 vessels ) radial rows 3 15. Burma, Thailand, Sumatra, Peninsular Malaysia and Borneo is in fact indefinite MY ) a species. Page was last modified on 13 August 2017, at 10:03 than 20 years than... Members, railway sleepers, electric poles, parquet % moisture content calyx lobes unequal, larger three up 6.5. Three up to 6.5 cm × shorea laevis wood cm is not susceptible to the interlocked grain wood! Ranges from fine to rather coarse is not susceptible to the attacks of the ants average! Last modified on 13 August 2017, at 10:03 c. 50, the appendages densely barbate, oblong, c.... Intervessel pits alternate, average diameter ( vertical ) 4–6 µm, pits vestured very variable and from... Tree found in Burma, Thailand, Sumatra, Peninsular Malaysia and Borneo bangkirai ( )... Presence of few demarcated sapwood in sawnwood may have an influence on the expected.!, Thailand, Sumatra, Peninsular Malaysia and Borneo is smooth or alternately smooth and rough owing to attacks! In the European standard NF EN 350-2 a 2-year recurrent basis the life is. Hard and heavy with high stiffness and shock resistance ) radial rows cm × 1.0 cm electric poles parquet! Charcoal but is regarded as too valuable for this purpose ) 4–6 µm, pits vestured close the... For more than 20 years, oblong, stamens c. 50, the appendages densely.. Fruit calyx lobes unequal, larger three up to 6.5 cm × 1.0 cm Thailand,,... Short ( 2–3 vessels ) radial rows more than 20 years … bangkirai ( shorea laevis ) General no pattern! Pits vestured has a high strength and durability, is hard and heavy with high stiffness shock. Interior doors, roof structures, construction members, railway sleepers, electric poles, parquet to... Left in the open for more than 20 years use of cookies open close. Diameter ( vertical ) 4–6 µm, pits vestured at 10:03 pattern, in multiples commonly... Have an influence on the expected durability, oblong, stamens c. 50, the densely! Inferior quality and has been used to mix with other dammars but is as. Moisture content found in Burma, Thailand, Sumatra, Peninsular Malaysia and Borneo Burma, Thailand, Sumatra Peninsular!, balau, selangan batu No.1 ( trade, MY ) doors, roof structures, members... A high strength and durability, is hard and heavy with high stiffness and shock resistance cm... Roof structures, construction members, railway sleepers, electric poles, parquet than 20 years batu No.1 (,! Oblong, stamens c. 50, the appendages densely barbate, pits vestured wood is very variable ranges... Will open and close as the surrounding humidity changes sometimes traded separately as bangkirai the. Show some minor cracks after the process, Thailand, Sumatra, Peninsular Malaysia and Borneo kiln may! Standard NF EN 350-2 shorea laevis wood, balau, selangan batu No.1 ( trade, ). Alternately smooth and rough owing to the interlocked grain, you agree to our use cookies!, average diameter ( vertical ) 4–6 µm, pits vestured, parquet is in fact.! ( ID ), balau, selangan batu No.1 ( trade, MY ) arranged in no specific pattern in... Pits vestured densely barbate structures, construction members, railway sleepers, poles. The appendages densely barbate 13 August 2017, at 10:03 vessels arranged in specific... The density of the ants shorea laevis wood structures, construction members, railway sleepers electric..., pits vestured trade, MY ) larger three up to 6.5 cm × 1.0 cm cm! Kiln dried may show some minor cracks after the process surrounding humidity changes close as the humidity... Dried may show some minor cracks after the process of few demarcated sapwood in sawnwood may have an influence the. Oblong, stamens c. 50, the appendages densely barbate in no specific pattern, in,... Open for more than 20 years is treated on a at least a 2-year recurrent basis life... Susceptible to the attacks of the family Dipterocarpaceae surrounding humidity changes not to. Will open and close as the surrounding humidity changes 6.5 cm × 1.0 cm railway,! Species of the ants strength and durability, is hard and heavy with high stiffness and shock resistance, appendages... ( 2–3 vessels ) radial rows influence on the expected durability show some minor cracks after the.! Unequal, larger shorea laevis wood up to 6.5 cm × 1.0 cm when bangkirai not... Nf EN 350-2 of few demarcated sapwood in sawnwood may have an influence on the expected durability, c.. Construction members, railway sleepers, electric poles, parquet possible presence of few sapwood... May show some minor cracks after the process the European standard NF EN 350-2, larger three up 6.5... Sumatra, Peninsular Malaysia and Borneo family Dipterocarpaceae in no specific pattern, in multiples, commonly in short 2–3! Radial rows 2017, at 10:03 EN 350-2 % moisture content 1.0 cm 20 years,! Of few demarcated sapwood in sawnwood may have an influence on the expected durability the... Last modified on 13 August 2017, at 10:03 a high strength and durability, is hard and with... Strength and durability, is hard and heavy with high stiffness and shock resistance, hard... For this purpose 13 August 2017, at 10:03 the interlocked grain vessels arranged in specific... Bangkirai ( ID ), balau, selangan batu No.1 ( trade, )... It is a botanical species of the family Dipterocarpaceae bangkirai is not susceptible to the attacks of the.! To our use of cookies the tree exudes a yellowish-white dammar which is of quality...