Magasawih

INTRODUCTION

The Standard Malaysian Name for the timber of Duabanga spp. (Sonneratiaceae). Vernacular names applied include berembang bukit (Peninsular Malaysia), magas (Sabah), sawih (Sarawak) and tagahas (Sabah). There are only two species in Malaysia, viz. D. grandiflora (occurring only in Peninsular Malaysia) and D. moluccana (occurring only in Sabah and Sarawak). The sapwood is lighter in colour and not sharply defined from the heartwood, which is light red-brown.

Also known as Dem chhoeuter and Dlom chloeu ter (Cambodia); Lampati (India); Benuang laki, Gayawas hutan and Kalanggo (Indonesia); Ling ngo, Mai lin ngo, Phay, Sa phay and Ten (Laos); Lampati and Myaukngo (Myanmar); Banderbola (Pakistan); Duabanga (Papua New Guinea); Loktob (Philippines); Lamphaen, Lamphu-pa and Tum ten (Thailand); and Phay (Vietnam).


DENSITY

The timber is soft and light with a density of 385-465 kg/m3 air dry.


NATURAL DURABILITY

The timber is non-durable.


PRESERVATIVE TREATMENT

It is difficult to treat with preservatives.


TEXTURE

Texture is coarse but even, with interlocked grain.


STRENGTH PROPERTIES

The timber is reported to be fairly strong and falls into Strength Group C (Burgess, 1958).


MACHINING PROPERTIES

It is reported to be easy to saw and work.


AIR DRYING

The timber is reputed to season well without serious degrade.


SHRINKAGE

Shrinkage is very high, with radial shrinkage averaging 3.9% and tangential shrinkage averaging 6.6%.


USES

The timber is not used to any extent presently but should be suitable for general planking, packing boxes and crates, shuttering and plywood. The trees are reputed to grow very rapidly and this timber may be a source of short-fibred pulp for the manufacture of paper.


REFERENCES

  1. Burgess, H. J. 1958. Strength Grouping of Malaysian Timbers. Malayan Forest Service Trade Leaflet No.25. The Malaysian Timber Industry Board and Forest Research Institute Malaysia, Kuala Lumpur. 15 pp.
  2. Wong, T. M. 1982. A Dictionary of Malaysian Timbers. Revised by Lim, S. C. & Chung, R. C. K. Malayan Forest Record No. 30. Forest Research Institute Malaysia Kuala Lumpur. 201 pp.