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Kauri
Kauri (Agathis borneensis)

Family: Araucariaceae

Common names: Almaciga, Bindang, Dakua makadre, Damar minyak, Kauri, Kauri agathis, Kauri pine, Menghilan, Tolong

Distributed in: Papua New Guinea (Oceania and S.E. Asia)

Distribution overview: This species is distributed throughout Brunei, Indonesia (Kalimantan, Sumatra), and Malaysia (Peninsular Malaysia, Sabah, Sarawak). It is a common species of tropical moist mixed closed forest up to 2200m. Pure stands occur on low-lying sandy peat soil in Borneo and Peninsular Malaysia.

Common uses: Bobbins, Building materials, Core Stock, Decorative plywood, Decorative veneer, Domestic flooring, Excelsior, Figured veneer, Flooring, Interior construction, Interior trim, Joinery, Millwork, Moldings, Paneling , Parquet flooring, Picker sticks, Plain veneer, Plywood, Shade rollers, Shuttles, Specialty items, Spindles, Spools, Stencil & chisel blocks, Structural plywood, Sub-flooring, Sucker rods, Trimming, Umbrella handles , Utility plywood, Veneer, Wainscotting

Environment profile: Vulnerable

Tree size: Trunk diameter is 150-200 cm The trees are capable of reaching a height of 200 feet (60 m)

Colors: the heart isYellow, Yellowish brownand the sapwoodWhite, Yellow.The grain isStraight, the textureUniformand the lusterMedium

Natural durability: Untreated wood in contact with ground could decay in less than 5 years, Very little natural resistance

Odor: No specific smell or taste

Kiln Schedules: 10 - D5s (4/4) T8 - D4s (8/4) U

Ease of Drying: Reconditioning Treatement

Blunting Effect: Moderate

Boring: Satisfactory results

Carving: Fairly difficult to carve

Cutting Resistance: Easy to saw

Gluing: Fairly Easy to Very Easy

Mortising: good

Moulding: Moulds well (70+ % of pieces will yield good to excellent )

Movement in Service: Moulds well (70+ % of pieces will yield good to excellent )

Nailing: Very Good to Excellent , Very good nailing properties

Planing: good

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Responds Readily

Routing recessing: Routing is easy

Sanding: Very Good to Excellent Results

Screwing: Good screwing properties, Very Good to Excellent Results; Turning: Fairly Easy to Very Easy

Painting: Little or no surface prep required; Polishing: Good; Staining: Good staining properties;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 512 kg/m3
Bending Strength 517 866 kg/cm2
Crushing Strength 231 416 kg/cm2
Hardness 348 kg
Impact Strength cm
Shearing Strength 150 kg/cm2
Stiffness 100 119 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 7360 12328 psi
Density 32 lbs/ft3
Hardness 769 lbs
Maximum Crushing Strength 3295 5920 psi
Shearing Strength 2136 psi
Stiffness 1428 1705 1000 psi
Specific Gravity 0.37 0.41

Resists denting and marring
Hard
Density = high
Crushing strength = medium
Compression strength (parallel to grain) = medium
Bending strength (MOR) = high

Boone, 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.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.WCMC. 1992. Conservation Status Listing - Trees and Timbers of the World. World Conservation Monitoring Center-Plants Programme, Cambridge, CB3 ODL, United Kingdom.
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