SO they can hang out in the garage. I cant handle 15 guinneas in my house! I built it out of used pallets I picked up from the hardware store, along with 1/2in chicken wire. The wire is on the inside, nailed down. The floor is cardboard. I will put the infrared lamp inside. It seems pretty animal proof. I even used a pallet (wrapped in wire) for the top so its too heavy for an animal to knock off. Built the whole thing for about 40$. Wuddya think?