This one was made from an old dog fence we had got from Pet Smart to take with us camping when our dogs were pups. Again hardware cloth around it, cardboard on on the back & one side panel. A tarp stitched to the fence with a cardboard floor on top of that. The white top panel is bungeed on, so we can get to the water & feed. The fence panels are all hinged together, so can pretty much make any shape we wanted.