Last Feb we installed our new 650 sq ft shop with "Diamondtrax" flooring tiles from Swisstrax (
www.swisstrax.com). They have many tiling options, including a recycled rubber tile. We had to cover the existing ceramic tile floor with something to avoid tile breakage, spill damage, etc., and the epoxy-type coverings, as well as other tile company options, were less environmentally kind and more expensive. The install was very easy and straightforward, and we are very satisfied with it; and happy to share lessons and details if you are interested...