How to Choose the Right Dog Door Size

The pet door flaps should be at least an inch or two above the top of your pet’s back not the head. To get this height, measure your pet from the withers (top of the shoulders) to the floor. Remember that your door won’t be placed completely at floor level. If you have more than one animal, measure the tallest one.
If you have trouble getting your dog to stand still to be measured, you can try standing next to your dog, putting your fingers level with his shoulders on your leg and then measure from the floor to that spot on your leg.

This is the easy one. Simply measure your pet at the widest point and add an inch or two for safety. If your pet is long-haired, don’t forget that this may make them appear wider than they really are.
Alternately, you can open a door just wide enough for your pet to pass through and measure the width of the opening, again adding an inch or two for safety.

The rise is the lip at the bottom of the door that the pet must step over to use the door. This measurement is generally only applicable for panel models which come with the rise built in. If you have a short-legged dog or an older dog that can’t lift his feet very high, or if the door is installed with a step on either side, consider ordering a “no rise” door. Our standard rise on panel models is 5” or 10”.

Standard Dog Door Size Chart

From “Small” to “Giant” our 11 standard sizes work for most situations. Measurements are Width” x Height”