Choosing the right crate size for your puppy is crucial for their comfort and safety. To determine the appropriate size, consider your puppy's estimated adult size and breed. The crate should be big enough for your puppy to stand up, turn around, and lie down comfortably. However, it should not be too large as puppies may use one end as a bathroom and the other for sleeping, defeating the purpose of crate training. As a general guideline, the crate should be about 1.5 times the length of your puppy from nose to tail. You can also opt for a crate with a divider to adjust the size as your puppy grows. Remember to provide soft bedding and toys to make the crate a cozy den for your puppy.

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Topics covered in this question:

Crate Training Dog Behavior Puppy Care Crate Size