Rewarewa is one of the most unstable timbers in NZ. It shrinks / expands significantly as atmosphefic misture content / humidity changes. Once properly sawn into overdimensioned boards it requires slow drying in filleted and top weighted stacks under cover and dried to 12% moisture content. Next plane it to required dimensions and seal it so no further moisture uptake is possible. Expect less than 50% utilisable recovery from any solid log. In short it is difficult to manage and main use is as a thin decorative timber rather than large structural.
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