I'm not sure what you're asking. How big is this setup? What are you trying to do? Reflective floors are often used in tabletop for product photography, most often inside a light tent. You would usually use a sweep, that is, bend the floor up into the background to make a curve, eliminating seams in the background of the finished image.
I have recently begun photographing my wife's jewelry for display on a web site, and to do this, I constructed a frame to hold a cardboard sign acquired from a local home supplies store at no cost, to use as a background. I also built a tabletop light tent from PVC pipe (very cheap) for which I have yet to obtain the cloth to cover it. I have ordered white and black reflective acrylic panels to use as a floor inside the tent for doing bracelets, earnings and the like. I use the background as-is for necklaces.
It would be for portraits. Basically my white vinyl background set-up as usual but with an acrylic sheet over the top of it, it adds reflection into the floor. If you google reflective floor portraits you will see what I mean.
Well, it's something I've never tried, so I guess I can't give you anything but the obvious—watch for unwanted reflections, both from the surrounding environment and the lights. It seems that it might be something done mostly in fashion and glamor photos, and I never got into that. Good luck, and I'd like to see what you get.
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