I was given a chunk of wood and told that it was Maple. It sure doesn't look like Maple to me though. I am not sure what it is. This is the largest that my Craftsman lathe has turned. It is about 1/4 " thick,12" across and 9" tall at the tallest point. It has a Polyurethane finish on it(the wife likes shiney things). The bowl is being auctioned off at a silent auction to help some friends of ours raise money for adopting a little girl from China. It was fun turning a bowl this size but it did test my nerves a couple of times.