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OgeaOgea
Ogea (Daniella thurifera)

Family: Leguminosae

Common names: Copal, Daniellia, Ehyedua, Fara, Faro, Gum copal, Incenso, Nsou, Ogea, Oziya, Shedua

Distributed in: Cameroon, Congo, Equatorial Guinea, Gabon, Ghana, Ivory Coast, Liberia, Nigeria, Sierra Leone (Africa)

Distribution overview: Africa, including Sierra Leone, Liberia, Ivory Coast, Ghana, Nigeria and Gabon. It is also quite common in the rain forests of southern Nigeria.

Common uses: Boxes and crates, Core Stock, Decorative veneer, Furniture components, Joinery, Millwork, Paneling , Plywood, Veneer

Product sources: The ITTO reports that timber is occasionally produced from the species and exported in low quantities.

Environment profile: Secure within its range

Tree size: The trees are usually unbuttressed and produce boles that are well-formed, straight, and clear of branches to 50 to 100 feet (15 to 30 m)

Colors: the heart isRed, Reddish brownand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureRed gummy deposits in parenchyma. and the lusterMedium

Natural durability: Non-resistant to termites, Non-resistant to marine borers

Odor: No specific smell or taste

Kiln Schedules: T10-D5S (4/4); T8-D4s (8/4) US

Drying Defects: Checking, Splitting

Ease of Drying: Slowly

Blunting Effect: Blunting effect on machining is slight

Boring: Fairly easy to very easy

Carving: Fairly Easy to Very Easy

Cutting Resistance: Easy to saw

Gluing: Glues well

Mortising: Fairly Easy to Very Easy

Moulding: Fairly Easy to Very Easy

Movement in Service: Fairly Easy to Very Easy

Nailing: Satisfactory nailing properties

Planing: Interlocked grain produces distinct ribbon figure

Resistance to Impregnation: The outer sapwood responds well to preservative treatment, but the inner sapwood and heartwood are difficult to impregnate with preservatives

Response to hand tools: Moderate blunting effect on cutting edges

Routing recessing: Fairly Easy to Very Easy

Veneering qualities: Selected logs are converted into decorative veneers for paneling and cabinets by slicing

Steam bending: Very poor Wood is reported to buckle severely even at a large radius of curvature

Screwing: Good screw holding properties ; Turning: Fairly Easy to Very Easy

Polishing: Satisfactory; Staining: Finish is generally satisfactory ;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,36 0,46
Density 480 kg/m3
Bending Strength 702 kg/cm2
Crushing Strength 377 kg/cm2
Hardness 315 kg
Impact Strength 55 cm
Shearing Strength 94 kg/cm2
Stiffness 92 1000 kg/cm2
Tangential Shrinkage 9 %
Radial Shrinkage 3 %
Weight kg/m3
Maximum Load 0,7 cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 9986 psi
Density 30 lbs/ft3
Hardness 696 lbs
Impact Strength 22 inches
Maximum Crushing Strength 5376 psi
Shearing Strength 1346 psi
Stiffness 1310 1000 psi
Work to Maximum Load 10 inch-lbs/in3
Specific Gravity 0.36 0.46
Radial Shrinkage 3 %
Tangential Shrinkage 9 %
Volumetric Shrinkage 12 %

Max. crushing strength = medium
Max. crushing strength (stiffness) = very low
Bending strength (MOR) = low
The wood has medium density

Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.HMSO. 1981. Handbook of Hardwoods, 2nd Edition. Revised by R.H. Farmer. Department of the Environment, Building Research Establishment, Princes Risborough Laboratory, Princes Risborough, Aylesbury, Buckinghamshire.ITTO. 1986. Tropical Timber Atlas, Volume 1 - Africa. Prepared for International Tropical Timber Organization (ITTO) by Centre Technique Forestier Tropical (CTFT, Division of CIRAD, 45bis, Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, France.Kribbs, D.A. 1959. Commercial Foreign Woods on the American Market. Buckhout Lab., Dept. of Botany, The Pennsylvania State University, University Park, Pennsylvania.Lincoln, W.A. 1986. World Woods in Color. Linden Publishing Co. Inc. Fresno, California.WCMC. 1992. Conservation Status Listing: Trees and Timbers of the World. World Conservation Monitoring Center (WCMC, Plants Program, 219 Huntingdon Road, Cambridge, CB3 ODL, United Kingdom.
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