When I decided to build my boys a C&C cage I called all of te local hardware stores and no one even knew what coroplast was! Finally my husband found me a local sign store that sold it. I called ahead for pricing and to make sure they'd sell me a sheet. When I went in to buy it the lady rang up my order and as my card was going through she said, "....so, your building a Guinea Pig cage huh!" and I was just thinking, what? How does she know bc I never said anything about why I was buying coro! So I said, "yeah! How did you know???" and she goes on to tell me that the only reason random people walk in their store to buy coro is if their building a guinea pig cage! She said she gets a lot of people buying it for cages and that people sware by coro! I thought that was so cool that that many people where I live are building C&C!