Disclaimer: This post may contain affiliate links. As an Amazon Associate, we earn from qualifying purchases.
Last updated on October 3, 2026
If your dog keeps raiding the cat’s box, the right dog proof litter box solutions depend more on your dog than on the box.
A big dog can often be stopped with a narrow gap or smaller entry. If your dog is close to your cat’s size, those barriers may not work, so height can be a better option. Physical access is the key: choose a setup your cat can use comfortably but your dog can’t.
A dog investigating a litter box while a cat watches nearby
Quick Picks
- Dog is bigger than your cat: Door Buddy Door Prop
- Want the fix right at the box: Dog Proof Litter Box Enclosure with Pet Door
- Cat jumps easily: IRIS USA Large Top Entry Litter Box
- Want it to look like furniture: HOOBRO Litter Box Enclosure
Why Dogs Won’t Leave the Litter Box Alone
To a lot of dogs, the litter box is a tempting place to investigate, and once they discover it, simply telling them to stay away may not stop access when you’re out of the room. Changing the setup puts a physical barrier between the dog and the box.
Dog Proof Litter Box Solutions for Big Dogs
If your dog is clearly bigger than your cat, use the size difference. Hold the door to the litter room open just wide enough for your cat. Owners do this with a hook and chain between the door and frame, or with a door prop made for the job.
A cat-sized opening lets your cat through while keeping a bigger dog out
A top-entry box can also help when the dog can’t reach the opening. One owner says switching to top entry stopped both a German shepherd and a lab.
Door Buddy Door Prop
Why It Stands Out: It swaps in for your door’s strike plate using the existing screws, so there’s no cutting and no adhesive. The gap adjusts from 3 to 5.5 inches. You open the door normally with the handle, and it re-latches at the cat-sized gap on its own. One owner says it held against a 50 lb dog pushing his nose through.
Possible Downsides: It only fits standard swinging interior doors, not pocket, barn or accordion doors. Some owners report trouble closing the door fully with it installed, although Door Buddy provides adjustment steps for this. One owner’s dog learned to push through within a day, and others say the adjustment screws need to stay tight.
Best For: Dogs that are noticeably bigger than your cat, in a home with a standard interior door to the litter room.
Dog Proof Litter Box Enclosure with Pet Door
Why It Stands Out: It surrounds the litter box with walls and a small pet door, and reviewers confirm it keeps their dogs out. It also cuts down on litter scatter, which even reviewers who stopped using it praised. It ships flat and goes together without tools.
Possible Downsides: It’s open on top. Check the wall height against your dog’s size, since a tall dog may be able to reach over. A small dog may fit through the pet door.
Best For: Homes where blocking a whole room isn’t practical.
When Your Dog Is Close to Your Cat’s Size
A dog about your cat’s size can often follow it through doors, gaps and pet flaps. Height tends to work better here.
Raising the litter box can keep it within your cat’s reach and out of a small dog’s
Put the box on a sturdy, stable surface that’s large enough to support the entire box and that your cat can reach comfortably but your dog can’t. A baby gate your cat hops over also works, as long as your dog can’t jump it. This won’t suit every cat, including cats that have difficulty jumping or climbing.
A top-entry box helps too, but some small dogs climb onto a low lid, so raising it adds another layer.
IRIS USA Large Top Entry Litter Box
Why It Stands Out: Cats go in through the lid, which keeps the litter out of reach for many dogs. The lid has small holes that catch litter from paws as your cat climbs out.
Possible Downsides: It may not suit cats that have difficulty jumping or climbing, including some senior or mobility-limited cats. It’s light plastic, so a determined dog may push it around.
Best For: Agile cats in homes with medium or large dogs, or small dogs when the box is raised.
When Your Dog Tips or Drags the Box
Some dogs don’t reach in. They flip the box or drag it until the litter spills. Owners have luck turning the box so it faces into a corner, which leaves no angle to work at.
A cabinet with a latch takes the box out of play entirely.
HOOBRO Litter Box Enclosure
Why It Stands Out: One owner says its extra door latch, beyond the magnets, keeps their dog out. The entrance can go on the left or right, and one owner with 18 lb and 23 lb cats says it works well for big cats. The shelves on top add storage.
Possible Downsides: The dog-proofing comes from one owner’s account. The entrance is still cat-sized, so check it against a small dog.
Best For: Living spaces where the box needs to blend in.
Don’t Forget the Cat
Any setup fails if your cat stops using it. Watch for your cat hesitating at a new entry, a narrow gap or a raised spot. Make sure your cat can still reach the box easily before the old setup comes away.
FAQ
Do covered litter boxes stop dogs?
Sometimes. Some owners say a covered box stopped their dog right away. Others find their dog just pushes its head through the front opening.
Should I cut a cat door into the door instead?
It works well against big dogs, but it’s permanent and a small dog may fit through. A door prop gives you a similar result without cutting.
Will a door prop work if my dog is close to my cat’s size?
Usually not. Door Buddy says its prop keeps out dogs slightly larger than your cat. If your dog is close to your cat’s size, height is a better option.
