[envisionary333]

I'm not sure what the point of the cardboard would be under a tarp? Do you mean for floortime or in the cage? Nothing will leak through the tarp so the cardboard doesn't seem to have a purpose.

As for the sticky floor tiles- I have thought about doing that as well, but my only concern is that the liquid would get through the cracks between each tile. Even if they are pressed up right next to one another, liquid would probably eventually seep through.