Alan Bunga


INTRODUCTION

The common trade name applied to the lighter forms of Shorea albida (Dipterocarpaceae). Vernacular names applied include meranti bunga (Sarawak) and singawan bunga (Sarawak). The sapwood is light yellowish pink and not clearly defined from the heartwood, which is pink or pinkish red. The timber resembles the Light Red Meranti of Peninsular Malaysia and is classified as a Light Hardwood in Sarawak.

Also known as Alan bunga (Brunei).


DENSITY

The timber is light to moderately heavy with a density of 575-640 kg/m3 air dry.


NATURAL DURABILITY

The timber is non-durable.


TEXTURE

Texture is rather coarse but even, with usually straight to interlocked grain.


STRENGTH PROPERTIES

The timber falls into Strength Group C (Burgess, 1958) or SG 5 (MS 544:Part 2:2001).


MACHINING PROPERTIES

It works well and the planed surface is smooth.


AIR DRYING

The timber seasons well without any serious defects.


SHRINKAGE

Shrinkage is very high, especially in the tangential direction. Radial shrinkage averages 1.2% and tangential shrinkage averages 4.5%.


USES

The timber is suitable for furniture manufacture, plywood, interior finishing, panelling, mouldings, joinery, light construction and other general utility purposes.  


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. Menon, P. K. B. 1986. Uses of Some Malaysian Timbers. Revised by Lim, S. C. Timber Trade Leaflet No. 31. The Malaysian Timber Industry Board and Forest Research Institute Malaysia, Kuala Lumpur. 48 pp.
  3. MS 544:Part 2:2001. Code of Practice for the Structural Use of Timber: Permissible Stress Design of Solid Timber.
  4. Wong, T. M. 1982. A Dictionary of Malaysian Timbers. Revised by Lim, S. C. & Chung, R. C. K. Malayan Forest Records No. 30. Forest Research Institute Malaysia, Kuala Lumpur. 201 pp.