Our Merbau post and beam is manufactured to Australian standard AS1328 and uses a GL17 glue. This makes it perfectly suitable for exposure to the elements. Our GL17 merbau is of select grade and has a proven track record across all conditions in Australia. From the tropical elements in Queensland to the temperature climates of Southern Victoria and Tasmania. Our beams are also certified by the Glued Laminated Timber Association fo Australia (GLTAA)