Pet door sizing
Pet Door Sizing Guide
Not sure what size your pet needs? Here's how we size every door — and why we always confirm with a free in-home measurement before we cut anything.
Measure the width
Measure your pet at the widest point (usually the shoulders or hips) while standing. The flap needs to clear this comfortably.
Measure the height
Measure from the floor to the top of the shoulders (the withers). This sets how tall the opening needs to be.
Mind the step-over
The bottom of the flap sits a few inches off the floor so it seals. We set it low enough for an easy, comfortable step-through.
We confirm in person
Pets and doorways vary — so we finish with a free in-home measurement to get the size and flap height exactly right.
At a glance
Pet door size guide
| Pet size | Examples | Typical flap size |
|---|---|---|
| Small | Cats, Chihuahua, Pomeranian | Small (≈ 5" × 7") |
| Medium | Beagle, Cocker Spaniel, Corgi | Medium (≈ 7" × 11") |
| Large | Labrador, Boxer, Golden Retriever | Large (≈ 9.5" × 15") |
| Giant | Great Dane, Mastiff, Great Pyrenees | X-Large (≈ 13" × 23") |
Sizes are a starting point — your free in-home measurement determines the exact model and flap height for your pet.
Good to know
Frequently asked questions
What if I have multiple pets of different sizes?
We size to your largest pet so everyone fits, and set the flap height so smaller pets can still step through easily.
Do I need to measure my pet myself?
It helps to have a rough idea, but you don't have to — our free in-home visit includes measuring your pet and your doorway.
Ready for your free quote?
We'll come measure your home in Georgia, recommend the perfect door, and answer every question — no pressure.