There are several methods you can use to measure your dog's paw and we highlighted the easiest and most accurate method below. Please keep in mind that you will need to measure the entire part of the paw that touches the floor - from the back paw pad to the edge of the toenail. You will also want to be sure your dog's nails are trimmed to ensure the most comfortable fit. It is best to measure your dog's paws while your dog is standing so the paw is completely splayed. When your dog is standing you will get a wider measurement (more accurate) than when your dog is laying or sitting.
Place your dog's paw on a blank piece of paper and mark the front & back of the paw (include toenail) for length measurement. Measure the distance between the lines. Do the same on the left and right sides of the paw for width measurement. Do not trace the paw.
Size does matter. Incorrectly sized dog boots will not be comfortable or perform well. We have a very simple 2 step sizing process. *Every product page on the website has a specific size chart corresponding to that particular dog shoe.* Most product pages also include a chart your dog can stand to help you pick the right size. Please set ACTUAL SIZE or 100% setting for your printer. The actual dimensions the paw prints should measure are listed on the images. It is necessary to measure the paper to make sure it printed accurately. If your dog’s shoe size falls in between two different sizes, choose the larger of the two to be sure the boots aren’t too tight or uncomfortable.
These Are Great For Hot Pavement! 
didn't work for me :( 
