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TERAP (Artocarpus scortechinii)

Trade Name

Terap

Scientific Name

Artocarpus scortechinii King

Family

MORACEAE

Common Names

Terap hitam (Malaysia); Nagka pipit (Malaysia)

Description Of The Tree

Botanical Description

It is a medium-sized to fairly large evergreen tree up to 35 m tall.

Natural Habitat

This species occurs scattered in lowland evergreen forests, up to 750 m of altitude.

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Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Tangential diameter of vessel lumina 200 micras or more (large). Colored deposits in heartwood vessels. Vessels per mm2 less than 6 (rare). Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Axial parenchyma aliform. Axial parenchyma confluent. 4 to 10 rays per mm (medium). Larger rays more than 4 seriate. Sheath cells. Oil and/or mucilage cells associated with the axial and/or ray parenchyma (idioblasts). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kri Septate fibers present. Fibers with distinctly bordered pits.

  • Wood Macro Photo Tangential Plane
  • Wood Micro Photo Of Transversal Section

Availability

Cites Status

Unrestricted

General Wood Description

Color

The heartwood is yellow to pale yellow-brown and usually demarcated from the paler sapwood.

COLOR INDEX (1=Black, 7=Light yellow,white)

5

Grain

It has interlocked grain.

Texture

A coarse texture is reported in this species.

Natural Durability

It is classified as non-durable under tropical conditions when exposed to the weather or in contact with the ground.

Natural durability index (1= Very high durability, 7=Vey low durability)

5

Internal Growth Stresses

Timber of this species contains residual stresses.

Resistance To Impregnation

This species is reported to be permeable to moderately permeable.

Wood Physical Properties

Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)

0.53

Air-dry Density (Weight and volume at 12%MC) (g/cm³)

0.57

Total shrinkage Tangential (Saturated to 0%MC) (%)

8.3

Total shrinkage Radial (Saturated to 0%MC) (%)

4.5

Recommended Dry Kiln Schedule

JP-25

Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)

1.9

Wood Chemical Properties

Wood Mechanical Properties

Bending Strength (MOR),12%MC (kgf/cm²)

758

Stiffness (MOE) 12%MC (kgf/cm²)

89367

Compression parallel to fiber 12%MC (kgf/cm²)

421

Janka hardness (side) 12%MC (kgf)

338

Janka hardness (end grain) 12%MC (kgf)

439

Workability

Sawing

Cutting operations are generally easy unless interlocked grain is found.

Rotary Veneer Cutting

This species is reported to have good characteristics for lamination.

Sliced Veneer

This species is reported to have good characteristics for lamination.

Machining

Machining of this species is reported to be easy.

Planing

The wood can be planed to a smooth surface, but there is some picking up on the radial face.

Boring

Boring is reported to be easy.

Nailing

This species is reported to have a good nailing behavior.

Gluing

It has a good behavior in gluing.

Finishing

Finishing is easy but the surfaces are rough even if filled.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, boards, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, cores, PACKING, pallets

General Housing
  • 10 - Silica in Timbers
Boards
  • 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Paneling
  • 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
  • 25 - Directory of Timber Trade Malaysia
Cores
  • 27 - Embassy of Brazil in Japan
Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Pallets
  • 48 - The strength properties of timbers

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