How to Measure Your Dog for a Crate: Step by Step

Why Crate Size Starts With Your Dog

A crate works well only when its interior matches the dog who will use it. The main measurements are height at the shoulder, body length from the tip of the nose to the base of the tail, and width across the shoulders or hips. Taking them before you shop makes crate shopping a simple comparison of interior dimensions.

The ASPCA lists a training crate or dog bed as part of basic dog supplies and recommends a warm, quiet place to rest away from drafts. That space helps only if the dog can use it comfortably. A crate that is too small can make resting harder, and a crate that is too large can make house training less useful. Measuring first avoids both problems.

Start with the individual dog instead of a breed-average chart. Dogs within a breed vary in body shape, and mixed-breed dogs vary even more. The CDC's guidance for choosing a pet says to think about the animal's size and housing needs first. Your own dog's measurements give you the same kind of information for the crate decision.

What You Need Before Measuring

Use a flexible tape measure and a notepad. A soft tape measure is easier to keep against the dog's body than a rigid ruler. Have treats ready so the dog stays relaxed. If the dog is wiggly, ask a helper to hold a treat in front of the nose while you measure.

If you need to lift a small dog onto a table, the ASPCA recommends placing one hand under the dog's chest and supporting the hind legs and rump. For a large dog, lift from underneath and support the chest with one arm and the rear with the other. Never lift by the forelegs, tail, or the back of the neck.

• A flat, non-slip surface
• A flexible tape measure
• A notepad and pen
• Treats and a helper

Measure Height at the Shoulder

Stand the dog on a flat surface and let it settle into a natural standing position. Find the top of the shoulder blade, sometimes called the withers. Set the tape measure on the floor beside the front paw and read the height from the floor to the top of the shoulder blade. This measurement tells you how much headroom the crate needs.

Take repeated readings and use the tallest reading. A dog can lower or raise its head, but shoulder height stays more stable when the dog is standing still. Compare this number with the crate's interior height rather than its exterior height. The interior vs. exterior dimensions article explains that difference, and door height and opening size helps you check whether the door will be easy to enter.

Measure Body Length

Body length matters because a dog lies stretched out in a crate. While the dog is standing, measure from the tip of the nose to the base of the tail. Keep the tape measure close to the body along the back and follow the natural line of the spine. If the dog turns its head, wait and measure again.

This length is the main number to compare with interior length. A tall but short-bodied dog can fit a crate that looks low, while a long-bodied dog needs a longer crate. For more detail on matching length, see how much room a dog needs in a crate. The crate size chart can help you translate the length into a typical crate size.

Measure Width

Measure the widest part of the dog from side to side while the dog is standing square. For most dogs, that point is across the shoulders or the hips. Place the tape measure across the top of the dog at that point and record the natural width. Do not pull the tape tight.

Width is easy to overlook, but the dog needs enough space to enter the crate and turn around. It becomes more important for dogs with broad chests or heavy muscle. If the door opening is narrower than the dog's shoulder width, the dog may hesitate to use the crate. Compare this number with the door height and opening size as well as the interior width.

Record and Compare

Write down the measurements with the date and keep them with your dog's other health notes. If a puppy is growing, remeasure as it grows and adjust the crate or use a divider. A divider dog crate lets the same crate serve several stages.

When you compare crates, look at interior dimensions instead of exterior dimensions. Many buying guides list both, but the dog uses the inside space. Match shoulder height to interior height, nose-to-tail length to interior length, and shoulder width to interior width.

A crate should feel like a den, not a runway. The ASPCA's separation anxiety guidance notes that dogs under stress may pace, chew, dig, or try to escape. A crate that matches the dog's measurements is easier for the dog to treat as a resting place.

Special Cases: Puppies, Travel, and Senior Dogs

For a puppy, current measurements tell you which crate works today, while expected adult size tells you which crate will work later. A divider lets a large crate cover both stages. See how to choose a crate for a puppy for a fuller approach.

For travel, measure the dog the same way and then check the rules that apply to your trip. The USDA pet travel page recommends contacting a USDA-accredited veterinarian as soon as you decide to travel, because destination requirements and paperwork take time. If the crate will ride in a car, leave room for the dog to stand, turn, and lie down without blocking airflow. See dog crate car travel safety and airline-approved dog crate requirements.

For an older dog, posture can change with age. Measure the dog in the position it naturally uses if standing square is difficult. A senior dog may also need a lower door or a tray that is easier to step over. See dog crate for senior dogs for more on that decision.

When you are between sizes, choose based on the largest comfortable measurement. It is easier to manage extra length with a divider than to add height to a crate that is too short. The buying guides for large dog crates and medium dog crates list interior dimensions that make the comparison straightforward.

What to pick for your use

Questions

How do I measure a dog that will not stay still?

Use treats and a helper to keep the dog facing forward. Take a break if the dog gets restless, and measure repeatedly in a calm standing position. Use the largest reading that matches the dog's natural posture.

Should I leave extra room in the crate?

Yes, but the amount depends on the dog. The goal is enough space for the dog to stand, turn around, and lie down in a natural position. For a puppy, extra length can be managed with a divider. For a fully grown dog, a crate that is much larger than needed may feel less secure.

Do crate measurements mean interior or exterior?

Compare your dog's measurements with the interior dimensions of the crate. Exterior dimensions include the frame, feet, and walls, so they overstate the space the dog can use. The dog needs the height, length, and width inside the crate.

Is there a simple way to use a breed chart instead?

A breed chart can be a starting point, but individual dogs vary. Measuring your own dog is more reliable because crate size depends on that dog's actual height, length, and width, not on the breed average.

Where should I measure body length from?

Measure from the tip of the nose to the base of the tail while the dog is standing. Do not include the tail, because the dog's body needs to fit inside the crate, and the tail can curl or lie to the side.

What if my dog is broader at the chest than at the shoulders?

Measure at the widest point you find. If that point is the chest, compare that width to the crate's interior width and to the door opening. A dog that cannot fit through the door comfortably will not want to use the crate.