"Man, what a stink! What have you been eating anyway!" Cages Note: Go to "Housing" in our Guidebook to learn how to calculate the size enclosure you will need for the number of rats you have. Here are some sites which carry some "rat" suitable cages, and also some sites which give you designs on how to make your own rat cage. (Don't forget to check out "Pet Stores" as a further source for cages.) Cages by Design CD & E Enterprises Custom Cage Works KW Cages Martin's Cages Midwest Homes for Pets Pioneer Cages Sierra Manufacuring Terenziani Cages Quality Cage Co. Some Home Made Cage Designs Better Holes and Garbage Build a Grotto Style Cage