How to Measure Your Dog Correctly
A coat that rides up the back, boots that twist or a fastening that pulls under the chest aren’t inevitable. In most cases, the problem comes from a measurement taken too quickly or compared against the wrong reference point. Knowing how to measure your dog correctly lets you choose gear that truly protects them, without limiting their movement or turning every outing into a negotiation.
For a dog, the right size isn’t just a matter of weight or breed. Two 12 kg dogs can have very different backs, chests and legs. That’s especially true for coats with attached boots: each measurement contributes to how well the set stays in place during walking, play and outings on snow or slippery sidewalks.
How to measure your dog correctly before you buy
Set aside a calm moment, ideally before a walk or after a few minutes of rest. Your dog should be standing on all four paws, with their head in a natural position. If they’re lying down, sitting or leaning toward a treat, their body is artificially shortened or widened and the measurement becomes less reliable.
Use a soft measuring tape, like a sewing tape. If you don’t have one, a piece of string will do in a pinch: place it around your dog, mark where it meets, then measure it flat with a ruler. Avoid rigid hardware-store tape measures, which don’t follow the curves of the chest and neck well.
Before you start, get what you need ready:
- a soft measuring tape;
- a treat to keep your dog relaxed;
- a notebook or your phone to write down the numbers;
- a second person if your dog moves a lot.
Back length: from the neck to the base of the tail
This is often the first measurement requested for a coat. Find the base of the neck, where a collar naturally sits, then measure to where the tail begins. Don’t start from the middle of the neck and don’t go to the tip of the tail: you’d add several unnecessary centimetres.
Keep the tape along the spine, without following the contours of the body too closely. A well-chosen coat covers the back and protects the exposed areas, but it shouldn’t get in the way of the tail or hang too low over the hindquarters. On a very long-bodied dog, like a dachshund, this measurement is especially decisive. On a compact dog with a short back and a broad chest, it should always be compared against the chest girth.
Chest girth: the measurement that often decides everything
Measure chest girth at its widest point, usually just behind the front legs. Run the tape all the way around the ribcage, making sure it stays level. This is the area that tells you whether the garment will go on comfortably and stay stable when your dog moves forward.
A coat that’s too narrow at the chest can rub under the armpits, pull on the shoulders and make your dog reluctant to wear it. Too loose, it may shift, slide out of place and lose the protection you’re after. For very muscular dogs, deep-chested dogs or dogs with thick fur, always go by the actual chest measurement rather than a size assumed from the breed.
Neck girth: comfort without compression
Neck girth is measured where the collar usually sits. The tape should be snug, but never tight. This point matters a lot with garments that cover more, since a neckline that’s too narrow can create uncomfortable pressure when your dog lowers their head, pulls slightly on the leash or shakes off.
If your dog has a lot of fur, gently part the hair without flattening it. The coat has to allow for the volume the fur naturally takes up, especially in winter. On the other hand, don’t measure over a bulky harness unless the model is specifically designed to be worn with one.
Measuring the legs and paws for boots that stay on
Boots are often hard to fit because owners only measure the width of the paw. But length, foot shape, leg height and the fastening system also play a role. A boot can look right while standing still and slip after a few steps if it isn’t held in the right place.
To measure a paw, place it flat on a sheet of paper. Your dog’s weight spreads the toes slightly, which gives a more realistic measurement. Trace the outline or mark the widest points, then measure the width and length of the print. Do it on both the front and back paws: they aren’t always the same.
Next, measure the height needed on the leg if the garment or boots come up the limb. Start just above the foot and measure up to the attachment point shown on the size chart. This step is essential for an attached system: the boots must stay well positioned without pulling on the joints or stopping your dog from bending their legs normally.
At Doggie Wear Style, the idea of boots attached to the coat answers a well-known annoyance precisely: separate boots that come undone, get lost or twist during the walk. But even with a system designed to stay in place better, accurate measurements make all the difference between reassuring gear and gear that shifts.
Which size to choose if your dog is between sizes?
There’s no single answer that works for every dog. Start by checking the size chart for the product you’ve chosen, because cuts and adjustment systems can vary. Compare every number requested, not just back length.
If your dog is between two sizes and their chest girth matches the larger size, that’s often the most comfortable choice. The chest and shoulders need room to move with your dog. A coat that’s a little too long can sometimes be adjusted, whereas a garment that’s too narrow at the ribcage never becomes comfortable by magic.
On the other hand, if your dog is slim, short-haired and only back length puts them between two sizes, the smaller size may work as long as the chest and neck girth stay within the stated range. Then check that the garment doesn’t ride up toward the back end and that the attachment areas stay at the right level. For growing puppies, it’s better not to plan for a much bigger size: gear that’s too loose is less stable and can throw off their gait.
Mistakes that throw off the measurements
The first mistake is measuring a sitting dog. Their chest is compressed, their back rounds and their paws aren’t in walking position. The second is pulling the tape too tight, often out of fear of choosing too big. That gives an artificially small size and can lead to uncomfortable gear.
You also need to avoid relying on breed alone. A French bulldog, a poodle, a Labrador or a mixed breed can have very different proportions depending on age, sex, musculature and weight. Finally, remember to take the fur into account: a dog with thick fur or one that’s freshly groomed won’t fill a coat the same way.
If your dog won’t stop moving, don’t try to get everything in one go. Take two or three measurements of each area and keep the most consistent number. A treat held at nose height can help keep a natural posture without making them wiggle or sit.
Checking the fit on the first try-on
Once the gear arrives, do a first trial indoors for a few minutes. Your dog should be able to walk, sit, lie down and lift their paws without anything blocking them. Pay particular attention to the armpits, neck, belly and joints: no area should pull, rub or leave a deep mark.
With boots, start with a few steps on familiar flooring. Some dogs lift their paws in an amusing way at first, simply because the feeling is new. Let them get used to it gradually. If the boots twist or fall off, squeeze the toes or noticeably change their gait, check the measurements and the adjustment before heading out on a long walk.
Taking a few minutes to measure your dog means preparing for easier outings when cold, damp or slippery surfaces come into play. Gear that fits lets your companion move freely while you enjoy the walk with one less worry.