Timbers of Kerala

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Scientific Name  Hopea glabra Wight & Arn.
Trade Name  Hopea
Local Name  Ilapongu, Puzha-pongu
Family  Dipterocarpaceae
Tree Size  Medium to large
Tree Height ( m )  18 -
Tree Diameter ( cm )  60 -
Tree Distribution  Sporadic in West coast semi-evergreen and West coast tropical evergreen forests
Sapwood-Heartwood Distinction  Not distinct
Sapwood Colour  Light greyish or creamy brown often with dark streaks
Heartwood Colour  Light greyish or creamy brown often with dark streaks
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  1075 -
Texture  Fine
Grain  Interlocked
Growth Rings  Scarcely distinct
Porosity  Diffuse porous
Vessel Size  Very small
Vessel Arrangement  Solitary and in radial multiples of 2-5 or in oblique grouping
Vessel Diameter   -
Vessel Element Lenght  -
Pit Outline 
Pit Size 
Vessel Ray Pitting 
Ray Nature  Moderately broad to fine, closely spaced
Ray Arrangement/Type 
Ray Number  -
Ray Height  -
Fibre Walls 
Fiber Length 
Modulus of Rupture in kg/cm2 (Green)  1067.3
Modulus of Elasticity in kg/cm2 (Green)  147900
Modulus of Rupture kg/cm2 (Dry)  1263.7
Modulus of Elasticity in kg/cm2 (Dry)  160700
Uses  Building and bridge construction; poles and posts; rice pounders

College of Forestry - KAU