Timbers of Kerala

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Scientific Name  Hopea ponga (Dennst.) Mabberley
Trade Name  Hopea
Local Name  Ilapongu
Family  Dipterocarpaceae
Tree Size  Medium sized
Tree Height ( m )  10 -
Tree Diameter ( cm )  50 -
Tree Distribution  West coast tropical evergreen forests and West coast semi-evergreen forests
Sapwood-Heartwood Distinction  Scarcely distinct
Sapwood Colour  Yellowish-brown to brownish-red
Heartwood Colour  Yellowish-brown to brownish-red
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  920 -
Texture  Fine
Grain  Somewhat Interlocked
Growth Rings  Fairly distinct
Porosity  Diffuse porous
Vessel Size  Medium to small
Vessel Arrangement  Solitary or in radial multiples of 2-5 or in oblique groups
Vessel Diameter   -
Vessel Element Lenght  -
Pit Outline 
Pit Size 
Vessel Ray Pitting 
Ray Nature  Moderately broad to fine, fairly close spaced
Ray Arrangement/Type 
Ray Number  -
Ray Height  -
Fibre Walls 
Fiber Length 
Modulus of Rupture in kg/cm2 (Green) 
Modulus of Elasticity in kg/cm2 (Green) 
Modulus of Rupture kg/cm2 (Dry) 
Modulus of Elasticity in kg/cm2 (Dry) 
Uses  Beams and rafters in bridge and building construction; poles, ballies and fence posts; railway sleepers

College of Forestry - KAU