Zebra Wood This is probably the most expensive hardwood floors in the world. It is an exotic wood with an appearance that resembles the striping of a zebra. The zebra wood was a favorite choice among the rich – it was used inside luxury cars such as Mercedes Benz, but also in Prada's flagship store in Manhattan.

Prime grade or AB-grade wood flooring is the highest quality of hardwood flooring that you can find. The wood in this grade has been carefully selected, and it features a minimal amount of natural defects like knots, sapwood, and grain irregularities.

The hardest wood used for flooring is Ipe, also known as Lapacho, but it is very rare and expensive. The hardest wood commonly used for flooring is Hickory, which has a rating of 1820 on the Janka wood hardness chart.