Your Measuring Guide How to Choose proper Dog Door that Fits your Dogs;

1. Measure your Dog's Width and Add 1 -2 inches for comfort - Your pet needs to comfortably fit through from side to side. You can estimate this by seeing how wide open a regular door needs to be to allow your pet to walk through without rubbing against the sides.
2. Measure your dog's Heighth and Add 1 -2  inches for comfort - Many people measure their dog from the ground to the top of their head, and then try to find a pet door that size. But if you have a large dog, you might conclude that there are no doors tall enough for your pet. And if you have a smaller dog, you might end up buying a much larger door than you actually need. Instead of floor to head, measure your pet’s height at his or her shoulder or the highest part of their back.Pets will automatically duck their heads and lift up their feet when they go in and out. Consider this the minimum height for your new pet door.
3. Pick out which dog door you like and get the size that equal your measurements.

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