Crates keep your puppy from getting into mischief that could potentially be unsafe. Crates also aid in potty training dogs and puppies. Your dog’s crate should be a cozy and relaxing safe haven, and should never ever be used as punishment. There are many kinds of crates: wire, mesh, and plastic. Our favorite are wire crates as they’re easy to clean and sturdy. Crates come from teeny tiny extra small to extra extra large. The right size depends on the size of your pup. The crate should be large enough that your pup can stand up and turn around comfortably, but not so big that the pup can assign areas to be a kitchen, bedroom, and definitely not a bathroom!