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Ditta 5
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Ditta 4
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Ditta 1
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Manoka jaune
Manoka jaune (Asteropeia rhopaloides)

Family: Theaceae

Common names: Manko, Manoka jaune, Manoko, Manoko mavo

Distributed in: Central African Republic, Madagascar (Africa)

Common uses: Agricultural implements, Boat building (general), Boat building, Building construction, Building materials, Cabin construction, Canoes, Carvings, Chairs, Charcoal, Chests, Concealed parts (Furniture), Construction, Crossties, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Factory construction, Factory flooring, Fine furniture, Floor lamps, Flooring, Fuelwood, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Interior construction, Interior trim, Joinery, Kitchen cabinets, Lifeboats, Living-room suites, Millwork, Mine timbers, Moldings, Office furniture, Parquet flooring, Poles, Posts, Radio - stereo - TV cabinets, Railroad ties, Rustic furniture, Sporting Goods, Turnery, Vehicle parts

Product sources: The ITTO reports that timber from this species is produced at low but regular rate. Export potential is rated as fair.The timber is available in adequate quantities and is prized in the moderate range. It has a wide range of applications in Brazil, where the timber is used to construct entire buildings. Reports indicate that Peroba rosa leads all other hardwoods from Brazil in availability and procurement quantities.The color of the Peroba timbers are often used to indicate the name. For example, Peroba reta has conspicuous black streaks, Peroba miuda is red with darker patches, Peroba peca is a white wood, Peroba rajada is light red with lighter patches, almost golden, and Peroba revesa has a figure similar to that in bird's eye maple.

Environment profile: Status has not been officially assessed

Tree size: Tree height is 20-30 m

Colors: the heart isPale brown, Yellowand the sapwoodPale yellow-brown, and occasionally striped , Yellow.The grain isStraight to interlocked, the textureFine

Natural durability: Resistant to powder post beetles, Susceptible to insect attack

Ease of Drying: Moderately Difficult to Difficult

Comments: Hard and heavy, and is often used in the round form

Blunting Effect: Requires specially tipped cutters

Boring: Fairly difficult to very difficult

Carving: Fairly Difficult to Very Difficult

Cutting Resistance: Fairly easy to saw

Gluing: Good gluing properties

Mortising: Fairly Difficult to Very Difficult

Moulding: Fairly Difficult to Very Difficult

Movement in Service: Fairly Difficult to Very Difficult

Nailing: Pre-Boring Recommended, Pre-boring recommended

Planing: Requires special tipped cutters to facilitate conversion because it is hard and heavy

Resistance to Impregnation: Sapwood is moderately resistant

Response to hand tools: Fairly Difficult to Difficult to Work

Routing recessing: Fairly Difficult to Very Difficult

Screwing: Pre-boring recommended ; Turning: Fairly Difficult to Very Difficult


  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 817 kg/m3
Bending Strength 1263 1824 kg/cm2
Crushing Strength 705 955 kg/cm2
Hardness 1239 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 4 %
Weight 737 592 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 17974 25945 psi
Density 51 lbs/ft3
Hardness 2732 lbs
Maximum Crushing Strength 10035 13590 psi
Weight 46 37 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 8 %

Max. crushing strength = very high
Bending strength (MOR) = very high
Shrinkage, Tangential = moderate
Shrinkage, Radial = small
Shrinkage, Radial = moderate
Hardness (side grain) = very hard
Bending strength (MOR) = high
Very dense
Shrinkage, Tangential = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Hardness (side grain) = hard
Density (dry weight) = 46-52 lbs/cu. ft.

Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchGueneau, P., Gueneau, D.,1969,Proprietes Physiques et Mecaniques des Bois Malagaches,CTFT MadagascarKeating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1Sallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.TTakahashi, 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
*Come interpretare i dati (manleva su eventuali imprecisioni)