Q: My interior designer suggested I do the kitchen and breakfast room floor in Koa because I’m doing the entryway in Koa with a maple border. Is Koa acceptable to use in the kitchen?
A: I’ve never heard of the wood until your question. My wood dictionary, as no surprise says it is rare and grows only in Hawaii. It is mostly used in veneers and for musical instruments, but no mention of it being used for flooring. The reason may be because it is rare. It does sound fairly hard and stable though, and is also used in gun stocks.
If it is good enough for your entryway, I think it should be fine in the kitchen too. Like any wood, if you drop something heavy on it, expect it to dent.