Our cage is 2 cubes by 5 cubes. We went to Home Depot and bought two of the 8 foot long, 16 inch wide closet shelves. My DH cut them to be 4 inches longer than the width of our cage (so there would be a 2 inch overhang on either side). One is attached along the entire back side of the cage with zip ties. There are 3 zip ties along the back end and one on each side of the back shelf. (It is permanently attached.) The "lip" part of the shelf overhangs the back side. Then the other shelf is placed in front of the back one, and attached with 14 zip ties to work as hinges, so we can lift this one up, and lay it back over the other one when it's time to care for Skittles. In the front, DH has a clip that looks sort of like the one at the end of a leash, and it is used as a sort of latch to keep the top closed. There is a picture in my gallery & if you click on my user name, I think you can find it that way. Hope this helps!