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Zebrano (Microberlinia brazzavillensis)
Family: Caesalpiniaceae Common names: African zebrawood, Allen ele, Amouk, Enuk-enug, Izingana, Zebrano, Zebrawood, Zingana Distributed in: Cameroon, Congo, Equatorial Guinea, Gabon (Africa) Distribution overview: The species is distributed in West Africa, especially in Gabon and Cameroon. It is sometimes found in pure stands along river banks, but growing sites are often quite inaccessible. Common uses: Boat building (general), Boat building, Cabinetmaking, Canoes, Chairs, Chests, Concealed parts (Furniture), Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Dowell pins, Dowells, Drawer sides, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Handles: general, Hatracks, Heavy construction, Joinery, Kitchen cabinets, Ladders, Lifeboats, Light construction, Living-room suites, Mine timbers, Office furniture, Paneling, Plywood, Pulp/Paper products, Radio - stereo - TV cabinets, Railroad ties, Rustic furniture, Shipbuilding, Skis, Sporting Goods, Stools, Tables , Tool handles, Toys, Turnery, Utility furniture, Vehicle parts, Veneer, Veneer: decorative, Wardrobes Product sources: The ITTO reports that timber from this species is produced in regular but limited quantities and exported regularly. The trees are difficult to harvest because they can grow to very large sizes and are often located in inaccessible areas. Harvesting difficulties and the need for quarter sawing, instead of the more economical plain sawing, are reported to add to the overall cost of the timber. Zebrawood is moderately expensive, and is available in limited quantities since its use is limited. Almost all the zebrawood sold on the market is quarter-cut. Veneers are also quarter-sliced to produce a straight grain, straight lined appearance, because plain-slicing produces a wild and unappealing appearance. Environment profile: Abundant
Tree size: Tree height is 10-20 m
The trees usually have very thick barks, which are removed at felling sites.
Colors: the heart isRed, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Whitish.The grain isWavy, the textureMedium coarse to coarseand the lusterMedium
Natural durability: Susceptible to pin hole borer and longhorn beetle , Very durable Odor: Unpleasant odor Kiln Schedules: UK=B US=T2C2/T2C1 Fr=2 Drying Defects: Slight surface checking, Slight twist/warp Ease of Drying: Difficult Tree Identification: Bole/stem form is straight Comments: General finishing qualities are rated as satisfactory Blunting Effect: Slight to medium effect Cutting Resistance: Easy to saw Gluing: May need filler Nailing: Difficult to nail, Fairly Difficult to Very Difficult Planing: Planes to a poor finish Resistance to Impregnation: Sapwood is permeable Response to hand tools: Good response Sanding: Good sanding properties Veneering qualities: Best veneers come from quarter sliced material , Bundles of veneers should be stabilized to prevent buckling
Turning: Torn surfaces is common with interlocked grain
Polishing: Very Good to Excellent; Varnishing: Good;
Shrinkage, Tangential = large Density (dry weight) = 46-52 lbs/cu. ft. Shrinkage, Radial = large Max. crushing strength = high Bending strength (MOR) = medium Bending strength (MOR) = high Density (dry weight) = 53-60 lbs/cu. ft. Density (dry weight) = 38-45 lbs/cu. ft. Shrinkage, Tangential = fairly large Shrinkage, Radial = moderate Modulus of Elasticity (stiffness) = high Hardness (side grain) = hard Bending strength (MOR) = very high Weight = high Toughness-Hammer drop (Impact Strength) = very high Shrinkage, Radial = fairly large Shearing strength (parallel to grain) = very high Max. crushing strength = medium Hardness (side grain) = very hard Hardness (side grain) = medium Density = very high Although it is strong, its uses usually do not require great strength. Bois et Forets des Tropiques,1949,Zingana (Microberlinia brazzainllensis,Bois et Forets des Tropiques,No.9,pp71-4Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Edlin, H.L. 1969. What Wood is That?: A Manual of Wood Identification.A Studio Book, The Viking Press, New York.Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry DepartmentFrance - C.T.F.T.,1966,Bois Tropicaux,C.T.F.T. Publ.,12France - C.T.F.T.,Recuil de Fiches Techniques,C.T.F.T.Hughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished dataITTO.1986.Tropical Timber Atlas, Volume 1 - Africa.International Tropical Timber Organization (ITTO) and Centre Technique Forestier Tropical (CTFT, 45bis, Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, France.Jay, B.A.,1968,Timbers of West Africa,TRADA, Red Booklet SeriesKaiser, J. 1989. Wood of the Month - Zebrawood: A Truly Exotic Species. Wood of the Month Annual, Supplement to Wood and Wood Products, Volume 1, Page 27-28.Kline, M. 1976. Microberlinia brazzavillensis - Zebrawood. In A Guide to Useful Woods of the World, Flynn Jr., J.H., Editor. King Philip Publishing Co., Portland Maine. 1994. Page 237.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc., Fresno, California.Rendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. LondonRevue des Bois et de ses Applications,1955,Zingana (Microberlinia brazzavillensis and M. bisulcata,Revue des Bois et de ses Applications,10(11, p29Sallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.TSallenave, P.,1971,Proprietes Physiques et Mecaniques des Bois Tropicaux (Deuxieme,Supplement,C.T.F.T.Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7 |
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