Sengkuang


INTRODUCTION

The Standard Malaysian Name for the timber of Dracontomelon dao (Anacardiaceae). Vernacular name applied includes mati anak (Peninsular Malaysia). The sapwood is pinkish or greyish yellow and is clearly defined in trees with coloured heartwood. The heartwood produced by some trees is coloured and is walnut grey-brown, while other trees produce a greyish or greenish yellow heartwood with irregular concentric dark brown to nearly black bands.

Also known as Basuong, Dahu and Sengkuang (Indonesia); Nga-bauk (Myanmar); Koel, Laup, Mon and Papua New Guinea walnut (Papua New Guinea); Dao, Lamio and Ulandug (Philippines); and Phrachao ha phra ong (Thailand).

  
DENSITY

The timber is moderately hard and moderately heavy with a density of 500-690 kg/m3 air dry. The timber is classified under Light Hardwood in Malaysia.


NATURAL DURABILITY

The timber is non-durable under exposed conditions and is susceptible to termite attacks.


TEXTURE

Texture is moderately coarse and even with straight or interlocked and sometimes wavy grain.


STRENGTH PROPERTIES

The timber falls into Strength Group 5 (MS 544: Part 2:2001).


MACHINING PROPERTIES

The timber is reputed to work easily and produces a smooth surface that takes a very high finish.


AIR DRYING

The timber is reported to season well.


USES

The coloured material is highly prized as a cabinet wood and is suitable for furniture manufacture, interior finishing, panelling, mouldings and plywood. The uncoloured material is suitable for temporary construction, shuttering, pallets (expendable type) as well as packing boxes and crates.


REFERENCES

  1. 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 Insitute Malaysia, Kuala Lumpur. 48 pp.
  2. MS 544: Part 2: 2001: Code Of Practice For Structural Use Of Timber. Permissible Stress Design of Solid Timber.
  3. 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.