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Size Guide

Find the Pawport size that fits your existing pet door.

Measure the clear opening your pet walks through, then compare it with the Pawport sizes below. If you are between sizes, choose the Pawport opening that is equal to or larger than your current opening.

Shop Smart Pet Doors

Medium

15.4" W x 20.5" H

Best for pets up to 75 lbs.

Large

15.4" W x 24.5" H

Best for pets 75 to 125 lbs.

Extra Large

15.4" W x 28.5" H

Best for pets 125+ lbs.

If you are purchasing a Pet Door System, make sure all the components are the same size.

Retrofit Compatibility

If you're looking to install Pawport Smart Pet Door onto your existing pet door, use the measurements below to select the right size for your particular opening. An exact fit is not required. Pawport adjusts to fit onto any pet door, guaranteed.

Medium

Large

Extra Large

Smart Pet Door Size

15.4'' W x 20.5'' H
(391 mm x 521 mm)

15.4'' W x 24.5'' H
(391 mm x 622 mm)

15.4'' W x 28.5'' H
(391 mm x 724 mm)

Existing Pet Door Opening Size

For any tunnel up to
13.25'' W x 16.25'' H
(337 mm x 413 mm)

For any tunnel up to
13.25'' W x 20.25'' H
(337 mm x 514 mm)

For any tunnel up to
13.25'' W x 24.25'' H
(337 mm x 616 mm)

New Installations or Remodels

If you don't have an existing pet door and you're looking to install Pawport as part of a complete Pawport system, use the information below to help you select the size that is best for your pet.

Medium

Large

Extra Large

Smart Pet Door Size

15.4'' W x 20.5'' H
(391 mm x 521 mm)

15.4'' W x 24.5'' H
(391 mm x 622 mm)

15.4'' W x 28.5'' H
(391 mm x 724 mm)

Recommended Pet Size

0 - 85 lbs

85 - 125 lbs

125+ lbs

Recommended Pet Height

8" - 25"

8" - 29"

8" - 36"

Tips for New Installation Door Selection

Pet Height
Measure from the floor to the highest part of your pet's back. Add 2" - 3" to the measured height so your pet can go through comfortably.
Step Over Height
The "step-over" height is the space between the bottom of the pet door and the surrounding door or wall, chosen based on your pet's size and mobility. It should allow your pet to pass through comfortably.
Consider Multiple Pets
When choosing a pet door for a home with multiple pets, select one based on the size of your largest pet to ensure it works for the smaller ones as well. Consider the step-over height for the smaller pets, and you may need to install a taller door low enough to accommodate them while still being suitable for your larger pet.

1" Width

Small

15" - 19" (381 mm - 383 mm) Adjustable Length

Medium

16" - 22" (406 mm - 559 mm) Adjustable Length

Large

20" - 30" (508 mm - 762 mm) Adjustable Length

5/8" Width

Small

11" - 12" (279 mm - 305 mm) Adjustable Length

Medium

12" - 15" (305 mm - 381 mm) Adjustable Length

Large

15" - 19" (381 mm - 482 mm) Adjustable Length

Find the Pawport size that fits your existing pet door.

Medium

Large

Extra Large

Size Guide

Retrofit Compatibility

Medium

Large

Extra Large

New Installations or Remodels

Medium

Large

Extra Large

Tips for New Installation Door Selection

Pet Height

Step Over Height

Consider Multiple Pets

Size Guide

1" Width

Small

Medium

Large

5/8" Width

Small

Medium

Large