Species: Geronggang

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Species profile
Family:HYPERICACEAE (angiosperm)
Origin:Asia and Oceania
Local and common name(s)
Gerunggang, Mulu, Serungan, Gonggang, Mapat, Sulunus,
Scientific name(s)
Cratoxylon arborescens, Cratoxylon glaucum, Cratoxylon spp.,
Typical use
Veneer for interior of plywood, Interior joinery, Fiber or paticle boards, Boxes and crates, Current furniture or furniture components, Veneer for back or face of plywood, Interior panelling, Blockboard, Moulding,
Commercial restriction:
IUCN Red List status:
Grain:Straigth or interlocked
Interlocked Grain:Slight
Sapwood:Clearly demarcated
Typical colour:Dark Red
Physical description
Crushing strength:37 MPa
Specific Gravity (at 12% MC):0,45
Static bending strength:67 MPa
Strength class:
Dry wood borers:Class D - Durable
Fungi:Class 5 - Not durable
Termites:Class S - Susceptible
Treatability:Class 1 - Easily permeable
Technical descriptions from the software Tropix 7 [1], with permission of the Research Unit Biomass, Wood, Energy, Bioproducts [2], CIRAD [3].

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