Dog Crate Size Calculator
Find the right crate size in 10 seconds: measure your dog's length and sitting height, and this calculator recommends the standard crate size that fits — with puppy sizing advice built in.
Nose tip to base of tail
Floor to top of head/ears, sitting
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You might also need:Puppy Weight Calculator·Dog Age Calculator
Crate sizing rules
min crate height = sitting height + 2–4″
The goal is Goldilocks space: enough to stand, turn and stretch out, not so much that a puppy can toilet in a far corner. A 28-inch-long dog needs at least a 30–32 inch crate — the standard 36-inch size with room to spare.
Standard crate sizes
| Crate size | Typical dims (L×W×H) | Dog weight | Example breeds |
|---|---|---|---|
| 18–22″ (XS) | 22×13×16″ | Under 12 lb | Chihuahua, Yorkie |
| 24″ (S) | 24×18×19″ | 12–25 lb | Frenchie, Pug |
| 30″ (M) | 30×19×21″ | 25–40 lb | Beagle, Cocker |
| 36″ (L) | 36×23×25″ | 40–70 lb | Border Collie, Bulldog |
| 42″ (XL) | 42×28×30″ | 70–90 lb | Lab, GSD |
| 48″ (XXL) | 48×30×33″ | 90–110 lb | Rottweiler, Malamute |
| 54″ (Giant) | 54×35×45″ | 110 lb+ | Great Dane, Mastiff |
Buying tips
- Puppy? Size for the adult: predict their grown size with the puppy weight calculator and buy that crate with a divider.
- Measure, don't guess by breed: individual dogs vary a lot — a tall Lab needs the XL, a small one is happy in the L.
- Location matters: quiet corner, out of direct sun, ideally where the family spends evenings — a crate is a den, not exile.
Frequently asked questions
How do I measure my dog for a crate?+
Two measurements: length from the tip of the nose to the base of the tail (not the tail tip), and height from the floor to the top of the head or ears while sitting — dogs sit taller than they stand. Add 2–4 inches to each and that is your minimum crate size.
What size crate does my dog need?+
The crate should let your dog stand without crouching, turn around freely, and lie flat on their side. Standard sizes run 18, 22, 24, 30, 36, 42, 48 and 54 inches long — this calculator maps your dog’s measurements to the right one.
Should I buy a bigger crate for a puppy to grow into?+
Yes — buy the adult size with a divider panel. Most 36-inch-plus crates include one; it shrinks the space while your puppy is small (important for house training — too much room invites accidents in the corner) and expands as they grow.
Can a crate be too big?+
For house training, yes: a crate much larger than the dog lets them sleep at one end and toilet at the other, defeating the den instinct. For a fully trained adult dog, a roomier crate is fine and often kinder for long stays.
Wire, plastic or soft crate — which type?+
Wire crates ventilate best, fold flat and take dividers — the default choice. Plastic (airline-style) suits travel and dogs who like a den. Soft crates are light for trained, calm dogs but chewable. Whatever the type, the sizing rules are identical.