Fijian kauri (Agathis vitiensis)
Family: Araucariaceae
Common names: Dakua, Dakua makadre, Fiji kauri, Fijian kauri, Ndakua makandre
Distributed in: Fiji [Polynesia], Fiji (Oceania and S.E. Asia)
Distribution overview: A close relative of New Zealand Kauri (Agathis australis), the species grows in the Fiji islands.
Common uses: Balusters, Boat building (general), Boat building: decking, Boat building: masts, Boat building: planking, Boxes and crates, Brush backs & handles, Cabinetmaking, Carvings, Chemical containers, Coffins, Decks, Food containers, Furniture, Handles: general, Heavy construction, Joinery (external): ground contact, Joinery, Light construction, Matches, Model airplanes, Moldings, Musical instruments, Oars, Paneling , Paneling, Particleboard, Plywood, Pulp/Paper products, Sporting Goods, Tool handles, Toys, Turnery, Vats, Veneer, Veneer: decorative, Xylophones
Environment profile: Status has not been officially assessed
Tree size: Trunk diameter is 200-250 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isWeak figure, the textureUniformand the lusterOften lustrous
Natural durability: Susceptible to insect attack, Susceptible to marine borer attack
Odor: No specific smell or taste
Kiln Schedules: T10 - D5s (4/4); T8 - D4s (8/4) US/T10 - D5s (4/4); T8 - D4s (8/4) US
Kiln Drying Rate: Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm)
Drying Defects: Distortion (twist/warp) is likely, Internal Honeycombing Possible
Ease of Drying: Stains easily
Tree Identification: Bole/stem form is not buttressed
Comments: Abnormal Wood Tissue
Blunting Effect: There is some significant blunting effect on cutting tools
Boring: Moderately easy
Carving: Fairly Easy to Very Easy
Cutting Resistance: Low resistance to sawing
Gluing: Moderate gluing properties
Mortising: Very Good to Excellent
Moulding: Very Good to Excellent
Movement in Service: Very Good to Excellent
Nailing: Variable, from difficult to satisfactory, Very Good to Excellent
Planing: Very Good to Excellent
Resistance to Impregnation: Sapwood has low permeability
Resistance to Splitting: Poor
Response to hand tools: Responds well to hand tools
Routing recessing: Routing is easy
Sanding: Fairly Easy to Very Easy
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Moderate
Screwing: Very Good to Excellent Results, Very good screw holding qualities; Turning: Very Good to Excellent Results
Painting: Little or no surface prep required; Polishing: Very Good to Excellent; Staining: Very Good to Excellent; Varnishing: Satisfactory;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
 |
 |
 |
 |
| Item |
Green |
Dry |
Metric |
| Specific Gravity |
0,37 |
|
|
| Density |
|
528 |
kg/m3 |
| Bending Strength |
524 |
895 |
kg/cm2 |
| Crushing Strength |
37 |
71 |
kg/cm2 |
| Hardness |
|
381 |
kg |
| Impact Strength |
|
71 |
cm |
| Shearing Strength |
|
125 |
kg/cm2 |
| Stiffness |
102 |
120 |
1000 kg/cm2 |
| Tangential Shrinkage |
|
|
% |
| Radial Shrinkage |
4 |
|
% |
| Weight |
512 |
416 |
kg/m3 |
| Maximum Load |
0,84 |
1,19 |
cm-kg/cm3 |
| Toughness |
|
259 |
cm-kg |
| Static Bending |
290 |
556 |
kg/cm2 |
|
 |  |  |  | | Item | Green | Dry | English | | Bending Strength | 7462 | 12743 | psi | | Crushing Strength | 534 | 1024 | psi | | Density | | 33 | lbs/ft3 | | Hardness | | 842 | lbs | | Impact Strength | | 28 | inches | | Maximum Crushing Strength | 3868 | 6919 | psi | | Shearing Strength | | 1789 | psi | | Static Bending | 4136 | 7918 | psi | | Stiffness | 1457 | 1715 | 1000 psi | | Toughness | | 225 | inch-lbs | | Work to Maximum Load | 12 | 17 | inch-lbs/in3 | | Specific Gravity | 0.37 | | | | Weight | 32 | 26 | lbs/ft3 | | Radial Shrinkage | 4 | | % | | Tangential Shrinkage | 7 | | % | |
Density (dry weight) = 31-37 lbs/cu. ft. 0 Bending strength (MOR) = low 0 Shearing strength (parallel to grain) = low Bending strength (MOR) = medium Shrinkage, Tangential = moderate Hardness (side grain) = soft Shearing strength (parallel to grain) = medium Hardness (side grain) = very soft Shrinkage, Tangential = small Shrinkage, Tangential = fairly large Shearing strength (parallel to grain) = very low
Toughness (total work) = medium
Alston, A.S.,1966,Natural Heartwood Durability,Fiji Forestry Department, Suva. Fiji timbers and their uses No. 2Alston, 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.,62Boone, R.S., C.J. Kozlik, P.J. Bois, E.M. Wengert. 1988. Dry Kiln Schedules for Commercial Hardwoods -Temperate and Tropical. USDA, Forest Service, General Technical Report FPL-GTR-57, Forest Products Laboratory, Madison, Wisconsin.Brown, W.H.,1978,Timbers of the World, No. 8 Australasia,TRADA, Red Booklet SeriesBudgen, 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.38Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Dallimore, W. and Jackson, A. Bruce,1966,A Handbook of Coniferae and Ginkgoaceae Fourth Ed. Revised by S.G.,Harrison,Edward Arnold (Publishers) Ltd. LondonEddowes, P. J. 1961. Commercial Timbers of Papua New Guinea:Their Properties and Uses. Office of Forests, Papua New GuineaFiji 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,1966,The Properties and Potential uses of Dakua makadre (Agathis vitiensis) A,Summary of C.S.I.R.O. Investigations,Fiji Timbers and Their Uses No.8, Department of Forestry, Suva, FijiFiji Forestry Department,1967,The Properties and Potential Uses of Buabua (Fagraea gracilipes) A Summary,of C.S.I.R.O. Investigations,Fiji Timbers and their Uses No. 14, 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.71I.U.F.R.O.,1973,Veneer Species of the World,Assembled at F.P.L. Madison on behalf of I.U.F.R.O. Working Party on,Slicing and Veneer CuttingKeating, 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,1Kloot, N. H. and E. Bolza.1961.Properties of Timbers Imported into Australia.Technological Paper No. 12.Division of Forest Products, Commonwealth Scientific & Industrial Research Organization, Melbourne, Australia.Kloot, N.H., Bolza, E.,1961,Properties of Timbers Imported into Australia,C.S.I.R.O. Forest Products Division Technological Paper,No.12Lavers, G.M.,1983,The Strength Properties of Timber (3rd ed. revised Moore G.L.,Forest Products Research Laboratory, Princes Risborough, Building Research,Establishment Report (formerly Bulletin No.50)U.K. - Colonial Forest Resources Development Department,1939,British Colonial Timbers - Woods recommended for Various Uses,Colonial Forest Resources Development Department,London
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