Frustrated by the limitations of the second story of my homemade rat cage, I decided to try replacing the second floor with a Fuzz-E-Floor. Basically, I had a wire shelf covered with plastic canvas for a second level, and my rats decided this would be a good place to urinate. As you can imagine, this made a mess of the second level as well as everything underneath it. Adding a litter pan to the second level did not help. So, I was excited to spot the Fuzz-E-Floor and immediately thought this would be a reasonable replacement for my second level. Certainly it would make cleaning the cage easier. Granted, this product can't really replace a solid floor but it worked pretty well for me and the rat boys as I explain in my review of the Super Pet Fuzz-E-Floor.