Timbers of Kerala

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Scientific Name  Hopea parviflora Bedd.
Trade Name  Hopea
Local Name  Kambagam, thambagam, irumbagam
Family  Dipterocarpaceae
Tree Size  Large to very large
Tree Height ( m )  25 -
Tree Diameter ( cm )  130 -
Tree Distribution  West coast tropical evergreen forests, Southern hill-top tropical evergreen, west coast semi-evergreen and west coast secondary evergreen Dipterocarp forests
Sapwood-Heartwood Distinction  Indistinct
Sapwood Colour  Yellowish-brown to reddish brown when first exposed, on ageing to dark reddish brown with white lines at intervals
Heartwood Colour  Yellowish-brown to reddish brown when first exposed, on ageing to dark reddish brown with white lines at intervals
Hardness  Hard to very hard
Specific Gravity Based on Weight Over-dry and Volume Green 
Weight  Heavy to very heavy
Weight(Kg)/cubic meter at 12% Moisture Content  930 -
Texture  fine
Grain  shallowly interlocked
Growth Rings  Scarcely distinct
Porosity  diffuse porous
Vessel Size  Medium to small sized
Vessel Arrangement  numerous, mostly solitary or in radial multiples of 2 -5 or in oblique grouping
Vessel Diameter   -
Vessel Element Lenght  -
Perforation 
Pit Outline 
Pit Size 
Vessel Ray Pitting 
Ray Nature  Moderately broad to fine
Ray Arrangement/Type 
Ray Number  -
Ray Height  -
Fibre Walls 
Fiber Length 
Modulus of Rupture in kg/cm2 (Green)  927.8
Modulus of Elasticity in kg/cm2 (Green)  130300
Modulus of Rupture kg/cm2 (Dry)  1353.7
Modulus of Elasticity in kg/cm2 (Dry)  145100
Uses  Beams, rafters and trussers in building construction; planks for shipbuilding; tool handles; poles and posts; railway sleepers; cart and carriages


College of Forestry - KAU