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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 Comments Common Names Common Uses Countries of Distribution Cutting Resistance Drying Defects Ease of Drying Family Name Gluing Grain Heartwood Color Kiln Drying Rate Kiln Schedules Luster Mortising Moulding Movement in Service Nailing Natural Durability Numerical Data Odor Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Routing & Recessing Sanding Sapwood Color Scientific Name Screwing Silica Content Steam Bending Strength Properties Synonyms Texture Toxicity Trade Name Tree Identification Tree Size Turning Scientific Name Daniellia klainei Trade Name Bisse Family Name Leguminosae Synonyms Daniellia kleinei Common Names Bisse, Bisseye, Bolengue, Daniella, Faro, Gbessi, Lonlaviol, N'dola, N'su, Ogea, Olengue, Olingue, Oziya, Singa Regions of Distribution Africa Countries of Distribution  [VIEW MAP] Congo, Gabon Common Uses Agricultural implements, Boat building (general), Boxes and crates, Concrete formwork, Flooring, Furniture, Joinery, Light construction, Particleboard, Plywood, Pulp/Paper products, Turnery, Vats Heartwood Color Black Brown Red Pink Pale red to pink Greenish to greyish Sapwood Color White Yellow White to yellow Grain Figure Interlocked Distinct (figure) Interlocked Distinct figure Texture Fine Medium Medium to coarse Coarse Luster Lustrous Natural Durability Very durable Susceptible to attack from termites (Isoptera) Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Non durable Susceptible to marine borer attack Pinworms (ambrosia beetles) are commonly present Perishable Odor Has an odor Silica Content High Toxicity Some toxic effects Kiln Schedules Drying (speed) is fast Drying Defects Slight collapse and honeycomb Ease of Drying Slowly Kiln Drying Rate Naturally dries slowly Tree Identification Bole/stem form is not buttressed Tree Size Tree height is 20-30 m Comments General finishing qualities are rated as good Blunting Effect High to severe Boring Fairly difficult to very difficult Carving Fairly Difficult to Very Difficult Cutting Resistance Fairly Difficult to Very Difficult to saw Cutting Resistance with dry wood is easy Gluing Fair to Good Results Fairly Easy to Very Easy Fairly Difficult to Very Difficult Easy to glue Mortising Fairly Difficult to Very Difficult Moulding Fairly Difficult to Very Difficult Movement in Service Fair to Good Stability - Medium Movement Nailing Pre-Boring Recommended Fair to Good Results Fairly Difficult to Very Difficult Easy to nail Planing Fairly Difficult to Very Difficult Planes well, to a good finish Easy to plane Resistance to Impregnation Resistant sapwood Resistant heartwood Sapwood is resistant Sapwood is moderately resistant Response to Hand Tools Fairly Difficult to Difficult to Work Easy to machine Routing & Recessing Fairly Difficult to Very Difficult Sanding Very Good to Excellent Results Screwing Pre-boring recommended Fair to Good Results Fairly Difficult to Very Difficult Fairly Easy to Very Easy Turning Fairly Difficult to Very Difficult Steam Bending Very poor Polishing Fair to Good Results Very Good to Excellent Results Strength Properties Bending strength (MOR) = medium Bending strength (MOR) = low Max. crushing strength = medium Max. crushing strength = low Density (dry weight) = 31-37 lbs/cu. ft. Shrinkage, Volumetric = large Shrinkage, Volumetric = fairly large Shrinkage, Tangential = moderate Shrinkage, Tangential = large Shrinkage, Tangential = fairly large Shrinkage, Radial = moderate Shrinkage, Radial = large Shrinkage, Radial = fairly large Hardness (side grain) = very soft Hardness (side grain) = soft Numerical Data Item Green Dry English Bending Strength 7711 12078 psi Density 32 lbs/ft3 Hardness 657 lbs Maximum Crushing Strength 3027 5157 psi Weight 31 25 lbs/ft3 Radial Shrinkage 5 % Tangential Shrinkage 8 % Volumetric Shrinkage 14 % Item Green Dry Metric Bending Strength 542 849 kg/cm2 Density 512 kg/m3 Hardness 298 kg Maximum Crushing Strength 212 362 kg/cm2 Weight 496 400 kg/m3 Radial Shrinkage 5 % Tangential Shrinkage 8 % References Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry Department Meniaud, J., Bretonnet, F.,1926,Les Bois Coloniaux d'Afrique dans l'Industrie,Publ. de l'Agence Gen. des Colonies Sallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,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