Crate Sizing Chart

A crate should be big enough for your dog to stand up, turn around and lie down comfortably — but not so big that it stops feeling like a cosy den. Enter your dog’s length and height and the calculator adds the recommended room, then matches it to standard crate sizes. It also estimates the size a puppy will need as an adult so you can buy once and use a divider.

How to measure your dog for a crate

1. Length: with your dog standing, measure from the tip of the nose to the base of the tail (not the tip).
2. Height: measure from the floor to the top of the head or ears, whichever is higher, with your dog sitting upright — many dogs are taller sitting than standing.
3. Add about 2–4 inches (5–10 cm) to both measurements so your dog can stand, turn and stretch out.
4. Compare with the crate’s interior dimensions, not the outside.

A helper and a treat make measuring much easier. Use a soft tape measure and a flat surface.

Standard dog crate sizes

Sizes are named by length. Dimensions are typical of wire crates and vary between brands; plastic travel kennels use different size codes. Weight ranges and breeds are only a rough guide — measure your own dog, because build varies a lot within a breed.

Worked example

A 60 lb Border Collie cross measures 28 inches from nose to base of tail and 24 inches from floor to top of head when sitting. Adding 4 inches of room gives a minimum interior of 32 × 28 inches in length and height. A 36-inch crate is typically 36 × 23 × 25 inches — long enough but not tall enough — so the calculator suggests a 42-inch crate (about 42 × 28 × 30 in), which fits both. For a dog that is tall when sitting, height is often the deciding measurement.

Crate sizing for puppies

Puppies grow fast, and buying a new crate every few months is expensive. Many owners buy a crate for the expected adult size and use a divider panel to shorten the space. This matters for house training: dogs naturally avoid soiling where they sleep, but a crate that is much bigger than the puppy leaves room for a toilet corner. Move the divider back as the puppy grows. Ask your vet or breeder about expected adult size, especially for mixed breeds.

Choosing a crate type

Making the crate a good place

• Introduce the crate gradually with treats and meals inside, door open at first.
• Add a washable bed or mat and a safe chew toy.
• Never use the crate as punishment.
• Keep crate time reasonable — adult dogs need regular exercise, company and toilet breaks; puppies need very frequent breaks.
• Remove collars with tags that could catch on wire.
• Place the crate somewhere quiet but not isolated, away from direct heat.

Signs a crate is the wrong size

• Your dog has to crouch or lower its head when standing.
• It can’t turn around without bumping the sides.
• It lies curled up tightly and can’t stretch out on its side.
• A puppy regularly soils one end of a large crate — the space is too big.
• Wire marks or rubbed fur on the head or back.

Cats and small pets

Cat carriers are sized in a similar way: the cat should be able to stand, turn around and lie down. For most adult cats a carrier about 18–24 inches long works; a top-opening carrier makes vet visits easier. Rabbits and guinea pigs need much larger living enclosures than travel carriers — the travel size is only for short trips.

Air travel

Airlines have their own rules for pet containers, based on the dog’s measurements and often following International Air Transport Association (IATA) guidance: typically the dog must be able to stand without its head touching the top, turn around and lie down naturally. Check your airline’s requirements well before travel, as they may be stricter than a home crate.

Privacy

The calculator runs in your browser; your measurements aren’t stored or sent.