What is the most durable hardwood floor available?

Our hardwood floors are treated with up to 10 coats of an aluminum oxide finish. While this will certainly help the durability of the floor, it is the hardness of the floor that will give the best indication of durability. Refer to the Janka Hardness rating for a true indication of hardness for a selected species:

American Black Cherry 950
American Black Walnut 1010
Yellow Birch 1260
Red Oak 1290
White Ash 1320
White Oak 1360
Hard Maple 1450
Santos Mahogany 2200
Brazilian Cherry 2345
Brazilian Teak 3540
Brazilian Walnut 3680
Ebony 3692