Best Cat Doors

About Best Cat Doors

A cat door lets your cat come and go without you playing doorman all day, but the right one depends on where it's going and what you want to keep out. Interior door installs tend to favor the no-flap, hidden-litter-box style since there's no weather to seal against, while exterior walls and doors need a locking flap built for wind and rain. If you share the house with a dog or outdoor strays are a problem, a microchip or ID-disc model that only unlocks for your own cat's signal keeps everyone else out of the food and litter area. Thickness matters too, most flap frames fit doors from under an inch up to about 2 to 3 inches, and window or sliding-screen installs need a kit sized to your exact window or track width. Weight capacity is worth checking against your cat's size, since ratings on this list run from small flaps rated near 15 to 20 pounds up to big-cat and multi-pet doors rated 60 pounds or more. Below we break the main styles out separately, manual flap, microchip-activated, no-flap interior, window-mounted and screen-door, so you can match the door to the opening and the pet instead of guessing.