Sorry this isn't qute what you asked, but my tech has this stuff (not exactly, but similar) all over the floor of the workshop. I assume it's a bit warmer than a concrete floor, keeps dust at bay, easy to clean, resists (or can be replaced in the event of) stains, and I bet it's quite easy to lay.
http://www.screwfix.com/p/ecotile-upvc-interlocking-floor-tiles-2m-dark-grey-pack-of-8/85464?kpid=85464&cm_mmc=Google-_-Product%20Listing%20Ads-_-Sales%20Tracking-_-sales%20tracking%20url&kpid=85464&cm_mmc=Google-_-Shopping%20-%20Flooring-_-Shopping%20-%20Flooring&gclid=CJztgNyagccCFfQatAodm4wBqA