Ron,
I gave that some serious thought. To jump back in time a little, years ago I used a Race Deck type material on the rear deck of my boat. (I have no idea if it was RD brand or not.) It was the open type and I loved it! No slipping, looked good and easy to wash down...except under neath the squares. Yes it was open, yes it drained without a problem, but you simply could not clean the floor without picking it up.
That was on a boat with only 60 sq. ft. covered area. Again, the spills that take place in a shop, the grinding dust, not to mention fiberglass dust that will damn up a 4" drain in a minute, the small parts that I drop at least a half dosen times a day, all add up to reason that I really need a solid floor covering.
Somebody, somewhere, just posted a picture of his floor with silver RD down. Now I thought that was perfect. I was convinced, then when the "logo" was mentioned I was over the edge. Had to do it, then the Mrs. asked me what about the heating system!
I simply told her NO problem, this has got to be a great insulator! Click, it struck me, floor radiant heat vs., overhead heat. What's a guy gonna do?
Still researching.......
DV...right now at the new location 6 degrees, over 40"s of snow!