Do not use a one-fits-all approach and don’t buy a medium dog crate thinking that it’s suitable for all breeds! To calculate an appropriate size measure your pet’s height and length (from tail to neb) and add 2-4 inches. These dimensions should be considered when buying a cage. Note that there should be enough space for a dog to stand up, turn, and lay down – but not too much. There are size charts online to help you make the right choice.