We adopted our two girls three weeks ago and have finally got their cage the way they need it. I originally made their ramp with coroplast, but they wouldn't use it, then I went with 2 cube panels folded over and zip tied together. They still wouldn't use it because it was too steep for them. So now they still have the 2 cube panels folded but I used another cube panel, bent it slightly, covered it with a towel and fleece and placed the ramp on top of it.Works like a charm plus the extra panel makes a great place to hide. They love it. I changed the loft area a little bit and moved the hay bag over the litter pan in the spot where the little hay basket is in the pic. their pellet bowel is now where the larger hay bag was.