Measuring Your Dog or Cat for a Pet Door

It is simple to determine the minimum width needed by your pet to pass through with comfort.

Open a sliding door just wide enough to have them walk through with a minimum of one-inch clearance gap on each side. 

This width including gaps is the minimum size flap width you require.

The top of the flap should be placed at least as high as the top of the tallest pet’s shoulder.

Take a measurement from the floor to that point.

“In-The-Glass” Doors come in four sizes. 

Using your previous measurements, select a door at LEAST as wide and tall as you need, larger is better than too small.

Door Size Image - How to Measure Your Cat or Dog for a Pet Door

When OUTSIDE, determine which side your sliding door opens, is it from the Left or Right?

Door Direction Image - How to Measure Your Cat or Dog for a Pet Door