Here is a pic of a couple of my cages. Vinyl flooring is what I use for the bottom of the cages. I make the back legs of the cages 1/2" longer than the front legs so the water runs out the front into a gutter that I custom built onto the cage. Its working quite well so far. Sorry I dont have any better shots. The cage on the left doesn't have any gutters on the front in the pic. I built these cages for about 40 bucks a piece. i think i could have done better if I shopped around, but I needed them quick when I built them all.