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How to Size a Muzzle

by Ed Frawley

Step One

Measure the dog's nose length. It should be from the tip of the nose to a 1/2-inch below the eyes. This should be taken along the top of the dog's nose as shown in the image below:

The dog in this photo has a 4-inch nose length.

Step Two

Measure the circumference of the nose. This should be done at the same point--a 1/2-inch below the eyes--all the way around the mouth when it is closed.

The dog in this photo has a circumference of approximately 11 ½ inches.

Step Three

**Be sure to give your dog enough room to pant while wearing the muzzle. The measurements given are the ACTUAL measurements of the muzzle itself. You need to be sure of two things before you choose your muzzle size:

  1. Your dog's 'nose length' CAN NOT be SHORTER than the actual muzzle length. If the muzzle is longer/deeper, then it will be in the dog's line of vision.
  2. The muzzles 'circumference' must be larger than your dog's 'nose circumference'. We recommend between 1-3 inches larger than your dog's measurement. If the muzzle is the exact same size as your dog's nose, the dog won't be able to pant. It's mouth won't even be able to open.