A good dog collar for a thick neck starts with a tape measure, not the breed name. Measure where the collar actually sits, add two fingers, and pick the widest strap that still clears your dog's jaw when they look down.
Stocky dogs like bulldogs, pit mixes, Staffies and boxer crosses are where breed charts go wrong most often. Their necks are big for their height, often short, and sometimes nearly as wide as the head. Here's how to get the size, width and fit right.
What size collar does a thick-necked dog need?
Whatever size the tape says. Our size guide lists typical breeds for each size, but those are a starting point for average dogs. A stocky dog can easily measure a size or two above the breed suggestion.
Take the French Bulldog. The chart puts it in Medium, 11 to 14 inches. Plenty of solid Frenchies measure 15 or 16 inches, which is Large. Order Medium on the breed name alone and the collar won't close.
Here are our neck ranges:
- Small: 8 to 11 inches
- Medium: 11 to 14 inches
- Large: 14 to 18 inches
- XL: 18 to 22 inches
- XXL: 22 to 28 inches
If your number lands between two sizes, size up. Every collar adjusts about 4 inches within its range, so the bigger size will still tighten to fit. If your dog measures over 28 inches, or the number just won't sit comfortably in a range, we can make one to measure.
How do you measure a thick or short neck?
Thick necks are trickier to measure than they look. Skin folds and a short neck make it easy to get a number that's too small. A few tips:
- Stand your dog up with their head level. When a stocky dog sits or looks down, the skin bunches and the tape reads short.
- Measure where the collar sits. That's just below the ears. On a short neck there isn't much room, so don't drift down toward the shoulders, where the neck is wider.
- Lay the tape flat over any folds. Don't tuck it into a crease or pull the skin tight. Snug against the coat, not squeezing.
- Add two finger widths. That's your number.
Measure twice. If the two readings differ, go with the bigger one. A collar that's a little long can be tightened. One that's too short can't be stretched.
What width collar is best for a thick neck?
Wider is usually better. Our size guide says it plainly: wider collars spread pressure for strong pullers and big necks. A broad strap sits flatter on a muscly neck and is less likely to roll or twist.
Here are the widths we recommend for each size:
- Small: 1/2 inch
- Medium: 5/8 inch
- Large and XL: 1 inch
- XXL: 1 1/2 inches
A thick neck can often take one step wider than the chart. A stocky Medium dog may be happier in 1 inch than 5/8.
The catch is length. A thick neck is often a short neck, and a strap that's too wide pushes up into the jaw. Do a quick check with the collar on. Your dog should be able to drop their head to eat and sniff without the top edge digging under their chin. If it digs in, go back down a width.
Our standard collars come in the chart width. For a wider strap, ask through the custom order form and send your dog's neck measurement and the width you'd like. We'll confirm the details before you pay anything. If your dog pulls hard as well, our guide to collar width for strong pullers goes deeper.
Why does my bulldog's collar slip over their head?
On many stocky dogs, the neck is nearly as wide as the skull. That leaves less of a step between neck and head to hold a loose collar in place. If the collar is even a little slack, a backward pull or a good shake can work it over the ears.
The fix is fit, not force:
- Two fingers, no more. Two fingers should slide flat under the collar. If you can fit a whole hand, tighten it.
- Re-check every few weeks. Weight and coat change through the year, and the fit changes with them.
- Keep the D-ring at the back. A collar that spins puts the D-ring under the chin, and pulls from there tend to lever it forward over the head.
If your dog is a determined backer-upper, clip the leash to a harness for walks and keep the collar on for ID. Every one of our collars has a harness option under Style, sized by chest girth on the same size guide.
How do you keep a collar comfortable on a stocky dog?
Thick-necked dogs often have skin folds, and folds trap moisture and dirt under a collar. A few habits help:
- Take the collar off and look underneath once a week. Check for redness, flattened hair or a damp, smelly patch in the folds.
- Dry the collar and the neck after baths and rain. A wet collar sitting in a fold is where rubbing starts.
- Keep the load light. Heavy tags hanging off a thick neck pull the collar round. Embroidering your phone number on the strap keeps your details on the collar without the swinging weight.
- Watch the breathing. If your flat-faced dog sounds noisier or coughs when they pull on the collar, move the leash to a harness and talk to your vet.
Ready to find a collar that actually fits your stocky pup? Browse our handmade dog collars, or send us a custom size and width.
FAQ
What size collar does a Staffy or pit mix wear?
There's no single answer. Many fall in Large (14 to 18 inches) or XL (18 to 22 inches), but stocky dogs vary a lot. Measure your own dog and trust the tape over the breed.
Is a 1 1/2 inch collar too wide for a bulldog?
It depends on the neck length, not just the girth. On a big, longer-necked dog it can be great. On a short-necked bulldog it may push into the jaw. Do the head-down check before settling on a width.
What if the collar doesn't fit when it arrives?
Send it back within 30 days and we'll adjust it for free. Include your dog's new measurement so we get it right the second time.
Want to see the prints first? Start with our handmade dog collars.