Dog crates are widely available and have five main uses:
Dog relaxing in crate 'den' area: Some dogs appear to benefit from having an open 'den' that they can use as a safe place where they feel secure.
Training aid: For example helping puppies to learn to be left alone or for helping with toilet training.
Short-term confinement: For example, where owner supervision is not possible.
Veterinary advised: In some circumstances a vet may advise the use of a crate, for example to aid recovery after surgery.
Transportation: Crates can help keep dogs secure and comfortable whilst being transported.