The behavioural benefits of crate training can be significant, hence why dog crates are now one of our best sellers. A dog crate is a usually a rectangular enclosure constructed of wire, plastic, canvas or even wood. Some people prefer to start out with a wire dog crate as these are less prone to being chewed in the early days of crate training. Whichever type of dog crate / cage you get, they should be large enough to allow your dog to stretch out flat on his side without being cramped and to sit up without hitting their head on the top.
Also remember that a dog crate that is too large defeats the purpose of providing security and promoting bowel control. If you are purchasing a dog crate that is large enough for your dog when fully grown, block off part of it so that your dog feels snug and secure (some manufacturers sell optional partitions for their crates). Make them as comfortable as possible with washable blankets. For more detailed information, take a look at our article Crates and Crate Training.