
Fiji hardwood (Palaquium hornei)
Family: Sapotaceae
Common names: Fiji hardwood, Fijian palaquium, Sacau
Common uses: Agricultural implements, Boat building (general), Cabinetmaking, Decks, Flooring, Flooring: industrial heavy traffic, Furniture, Handles: general, Heavy construction, Joinery (external): ground contact, Joinery, Ladders, Light construction, Mine timbers, Piling, Posts, Railroad ties, Sporting Goods, Turnery, Vehicle parts
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isPurple, Reddish brownand the sapwoodPaler than heartwood
.The grain isStraight, the textureMedium
Natural durability: Susceptible to marine borer attack, Very durable
Kiln Schedules: Kiln Drying Rate (in days) is fairly rapid
Kiln Drying Rate: Fairly rapid (11-17 days for boards under 32 mm, to 31-51 days for boards greater than 63 mm)
Drying Defects: Moderate surface checking, Splitting
Ease of Drying: Fairly Easy
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Nailing: Difficult to nail, Holds nails well
Planing: Poor to Very Poor
Resistance to Splitting: Poor
Turning: Good results
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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 |
 |
 |
Item |
Green |
Dry |
Metric |
Specific Gravity |
|
|
|
Density |
|
913 |
kg/m3 |
Bending Strength |
804 |
1248 |
kg/cm2 |
Crushing Strength |
485 |
699 |
kg/cm2 |
Hardness |
|
901 |
kg |
Impact Strength |
|
|
cm |
Shearing Strength |
|
155 |
kg/cm2 |
Stiffness |
134 |
155 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
6 |
|
% |
Weight |
897 |
737 |
kg/m3 |
Maximum Load |
|
|
cm-kg/cm3 |
Toughness |
|
|
cm-kg |
Static Bending |
|
|
kg/cm2 |
|
 |  |  |  | Item | Green | Dry | English | Bending Strength | 11442 | 17761 | psi | Density | | 57 | lbs/ft3 | Hardness | | 1987 | lbs | Maximum Crushing Strength | 6899 | 9945 | psi | Shearing Strength | | 2205 | psi | Stiffness | 1916 | 2209 | 1000 psi | Weight | 56 | 46 | lbs/ft3 | Radial Shrinkage | 6 | | % | Tangential Shrinkage | 9 | | % | |
Density (dry weight) = 53-60 lbs/cu. ft 1 Max. crushing strength = high Density (dry weight) = 61-67 lbs/cu. ft Shrinkage, Tangential = large Shrinkage, Radial = large Modulus of Elasticity (stiffness) = medium Modulus of Elasticity (stiffness) = high Bending strength (MOR) = medium Bending strength (MOR) = high Shearing strength (parallel to grain) = medium Shrinkage, Tangential = small Shrinkage, Tangential = moderate Shrinkage, Tangential = fairly large Shrinkage, Radial = moderate Shrinkage, Radial = fairly large Hardness (side grain) = medium Hardness (side grain) = hard
Alston, A.S.,1966,Natural Heartwood Durability,Fiji Forestry Department, Suva. Fiji timbers and their uses No. 2Alston, A.S.,1966,Powder Post Beetle Lyctus Species,Fiji Forestry Department, Suva. Fiji timbers and their uses No.6Alston, A.S.,1982,Timbers of Fiji: Properties and potential uses,Fiji Forestry Department, SuvaBolza, E., Kloot, N.H.,1972,The Mechanical Properties of 56 Fijian Timbers,Australia C.S.I.R.O. Division of Forest Products Technological Paper,No.,62Budgen, B.,1981,Shrinkage and density of some Australian and South-East Asian Timbers,C.S.I.R.O. Div. building Res. Tech Paper(2nd Series) No.38Fiji Department of Forestry,1969,A Summary of the Properties of 34 Indigenous Timbers,Fiji Forestry Department, Suva. Fiji timbers and their uses No.38Fiji Department of Forestry,1972,Guide to the use of local timbers,Fiji Forestry Department, Suva. Fiji timbers and their uses No.55Fiji Forestry Department,1969,Timbers for Flooring A Note on Current & Potential Species,Fiji Timbers and their Uses No.36, Department of Forestry, Suva, FijiFiji Forestry Department,1981,The Properties and Uses of 43 Indigenous and Exotic Timbers,Fiji Forestry Department, Fiji Timbers and their Uses No.71Keating, 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,1
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