Why snug beats spacious
It feels generous to buy the biggest crate on the shelf, but dogs don't experience crates the way we experience rooms. A crate works because it taps the den instinct — a close, covered, low-traffic spot reads as safe, which is why many dogs nap in theirs with the door wide open. An oversized crate loses that enclosed feel, and it actively sabotages house training: a puppy with room to spare will relieve itself in one corner and sleep comfortably in the other, which teaches exactly the wrong lesson. The right size lets your dogstand without crouching, turn around easily, and lie stretched on its side — and not much more than that.
How to measure your dog
You need two numbers, taken while your dog is standing squarely:
- Length: tip of the nose to the base of the tail. Don't include the tail itself — most dogs are happy to curl or drape it, and including it pushes you into a needlessly large crate.
- Height: floor to the top of the head (for erect-eared breeds, to the ear tips). Measure standing, not sitting — some dogs are taller seated.
Add roughly 4 inches to each measurement, then choose the smallest standard crate that meets both numbers. If your dog is between sizes or still filling out, round up one size rather than down. Weight ranges on crate packaging are useful for a sanity check, but body shape varies so much between breeds — a lanky Whippet and a stocky Bulldog can weigh the same — that measurements should always win.
| Crate length | Size class | Typical weight | Example breeds |
|---|---|---|---|
| 18" | XS | up to ~10 lb | Chihuahua, Yorkie |
| 22" | Small | 10–25 lb | Pug, Maltese, Shih Tzu |
| 24" | Small/Medium | 20–30 lb | Mini Schnauzer, French Bulldog |
| 30" | Medium | 30–40 lb | Beagle, Cocker Spaniel |
| 36" | Large | 40–70 lb | Border Collie, Bulldog |
| 42" | XL | 70–90 lb | Labrador, Golden Retriever |
| 48" | XXL | 90–110 lb | German Shepherd, Rottweiler |
| 54" | Giant | 110 lb+ | Great Dane, Mastiff |
The puppy strategy: buy once, divide
Puppies outgrow crates fast, and buying three crates in a year gets expensive. The standard trick is to buy the crate sized for your puppy's expected adult measurements(use the breed's typical adult size, or ask your vet to estimate from paw size and growth curve for mixes) and shrink it with a divider panel. Most wire crates from 36 inches up ship with one. Position the divider so the puppy has just enough room to stand, turn and lie down, then move it back every few weeks as the puppy grows. You get correct house-training proportions at every age for the price of a single crate.
Frequently asked questions
How do I measure my dog for a crate?
Measure 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 while standing. Add about 4 inches to each measurement — that's the minimum crate length and height your dog needs.
Should a dog crate be bigger or smaller?
Snug is better than huge. The dog should be able to stand without crouching, turn around, and lie down stretched out — but not much more. An oversized crate undermines house training because the dog can soil one end and sleep in the other.
What size crate should I buy for a puppy?
Buy the crate sized for your puppy's expected adult size and use a divider panel to shrink the interior while the puppy grows. Most wire crates in 36 inches and up include a divider, which saves you buying two or three crates.
Can two dogs share one crate?
It's generally not recommended. Even bonded dogs can become anxious or guard the space when confined together, and there's no exit if a squabble starts. Give each dog its own crate, ideally placed side by side if they like company.