The Standard Malaysian Name for the timber of Koordersiodendron pinnatum (Anacardiaceae). The ASEAN Standard Name, which is of Indonesian origin, is MUGIS. Vernacular names applied include ranggu (Sabah and Sarawak), although in Sarawak, ranggu is also applicable to certain species of the family Meliaceae. This species is found in the Malaysian states of Sabah and Sarawak and is absent in the Peninsular. This is a monospecific timber. The sapwood is white to pale pink and is clearly defined from the heartwood, which is pink-brown to red-brown and darkens on exposure.
Also known as Bugis (Indonesia) and Amugis (Philippines).
The timber is moderately hard and moderately heavy to heavy with a density of 690-915 kg/m3 air dry. The timber is classified under Medium Hardwood in Malaysia.
The timber is moderately durable under exposed conditions.
Texture is rather fine and even, with straight to interlocked grain.
The timber falls into Strength Group B (Burgess, 1958) or SG3 (MS 544: Part 2:2001).
It is reported to be easy to saw and works well with all tools, although there is a slight tendency for grain pick-up on radial surface.
The nailing property ranges from good to poor.
The timber is reputed to season slowly, with moderate staining, slight bowing and end-checking as the main sources of degrade. 13 mm thick boards take approximately 5 months to air dry, while 38 mm thick boards take 6 months.
Shrinkage is fairly high, with radial shrinkage averaging 1.7% and tangential shrinkage averaging 2.6%.
The timber is suitable for medium construction, flooring, interior construction, furniture, cabinet making, general joinery, door panels and turneries.
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.
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.
MS 544: Part 2: 2001: Code Of Practice For Structural Use Of Timber. Permissible Stress Design of Solid Timber.
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.