At first glance, this floor looks like it’s made from rustic hardwoods. In reality, it’s concrete that has been refinished and stamped to achieve this texture and finish. Unlike hardwoods, decorative concrete stamped to look like wood.
Acid-stained Concrete Patio -- Looks like copper! Click the pic for a brief how-to video on doing this technique. I'd love to do this, although I wonder if the acid stain is bad for those plants around the patio.