Nice list and a sensible presentation, but whilst these species are harder, appear durable but what about consideration for the ability of these species to perform in different areas of the world.Â
I have seen many of these tropical species underperform with regard to stability. With the exception of Ipe, the others certainly need a thicker material to maintain performance in stability. if this is not achievable due to limited supply then consideration should be for tighter joist layout (300mm C) and also much bigger fixings (min 5.5mm x 75mm)
There is far too much bad advice proffered to Landscapers and Contractors regarding these specialist materials… there should be much more information out there.