Merbau is due to its hardness and stability perfectly useable for wooden floors. It has to be processed with special metaltipped tools. Initially the species has got a lighter colour but within time darkens to a warm copper-brown tone. The drying needs to be done very slowly in order to avoid deforming and cracks. As merbau has water-soluble extractives, which are bleeding out, this has to be noticed, if using waterbased lacqueurs. No problems are known concerning glueing.
Natural light, yellowish and dark (red-blackbrown) substances in the pores are typical for the wood.
During the last decades merbau has been overused especially for construction of bridges as well as for wooden floors.
Today there are efforts to include merbau into the list of CITES.
Another trading name is „Kwila“.
Botanical Name: Intsia bijuga, Intsia spp.
Code according to DIN EN 13556: INXX
Origin: Southeast Asia
Differential shrinkage %/%
- radial 0,13 ... 0,23
- tangential 0,26 ... 0,34
Moistrure uptake: very slow
- Brinell: 43 N/mm²
- Compared with oak (100%): 126%
Dimensional Stability: very good
All the information related to the different wood species are taken from:
Pitt, W. (2012-BOEN), 33 COLOUR CHARTS PARQUET, first edition. Bad Wörishofen, Holzmann Medien GmbH & Co. KG, Germany