Timbers of Kerala

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Scientific Name  Toona ciliata Roemer
Trade Name  Toon
Local Name  Madagiri-vembu, Vembu, Chuvanna- agil
Family  Meliaceae
Tree Size  Large
Tree Height ( m )  20 -
Tree Diameter ( cm )  60 -
Tree Distribution  West coast tropical evergreen, Southern hill top tropical evergreen, West coast semi evergreen and occasionally in moist teak bearing forest
Sapwood-Heartwood Distinction  Distinct
Sapwood Colour  Pinkish brown
Heartwood Colour  Reddish-brown
Hardness  Soft to moderately hard
Specific Gravity Based on Weight Over-dry and Volume Green 
Weight  Light to moderately heavy
Weight(Kg)/cubic meter at 12% Moisture Content  515 -
Texture  Coarse and uneven
Grain  Straight
Growth Rings  Distinct
Porosity  Semi-ring porous to ring-porous
Vessel Size  Large in early wood, small and moderately few in late wood
Vessel Arrangement  Solitary or in radial multiples of 2 or 3
Vessel Diameter   -
Vessel Element Lenght  -
Pit Outline 
Pit Size 
Vessel Ray Pitting 
Ray Nature  moderately broad to fine, fairly wide spaced
Ray Arrangement/Type 
Ray Number  -
Ray Height  -
Fibre Walls 
Fiber Length 
Modulus of Rupture in kg/cm2 (Green)  436
Modulus of Elasticity in kg/cm2 (Green)  63980
Modulus of Rupture kg/cm2 (Dry)  562
Modulus of Elasticity in kg/cm2 (Dry)  78530
Uses  Furniture and cabinets; general purposes like Class I plywood; black board, cigar boxes and packing cases; textile mill accessories; pencil slates; tennis, badminton and squash racket frames; musical instruments

College of Forestry - KAU