It is important to choose a metal crate that is large enough for the dog to turn around and stretch. It is important that it is not too large especially if it is used for house training. Metal crates should have a smooth, removable base for comfort and easy cleaning.
Metal crates often come with divider panels so the crate can adjust as puppies grow or gain weight. These crates have the advantage of being lightweight and easy to fold up and store. Metal crates can be cleaned with pet-friendly soap and water. One disadvantage of metal crates is their tendency to rust if not kept clean and dried.