The best cat-proof doggie door depends on whether you want to keep a dog out of a room or install a permanent pet passage. Door Buddy’s adjustable latch and door prop are suited to homes that need a narrow opening for a cat, while Baboni’s flap doors provide independent access for pets but do not selectively block dogs. Compare the opening style, installation work, pet size, and door or wall dimensions before choosing.
| Product | Best For | Installation Type |
|---|---|---|
| Door Buddy Latch & Stopper | Adjustable cat access with a stopper included | Adhesive, no-cut setup |
| Baboni 3-Flap Door | Pets up to 40 pounds | Cut into a door |
| Door Buddy Door Prop | Renters seeking a removable door prop | Replace strike plate |
| Baboni Wall Pet Door | Larger pets needing wall access | Cut into a wall |
| Door Buddy Grey Latch | Adjustable opening without a stopper | Adhesive, no-cut setup |
Door Buddy Cat Door Latch & Stopper
Best for: Households that want to keep a dog out of a cat’s room without cutting a hole in an interior door. This adjustable strap holds the door partly open, letting you set a gap intended to suit your cat while limiting access for a larger dog.
The product uses 3M adhesive on the door and frame, and its listing says it can stop dogs up to 120 pounds. It also includes a door stopper, which can help keep the door propped open. The tool-free setup makes it a simpler alternative to installing a pet gate or permanent flap door.
Limitation: The instructions say not to install it on drywall. The narrow opening also needs to be sized for your cat; it is not a selective electronic pet door.
Baboni Medium 3-Flap Dog Door
Best for: Homes where cats and dogs need to pass through a door independently and can share the same opening. Baboni specifies pets up to 40 pounds. The flap opening measures 8 1/4 inches wide by 12 1/4 inches high, and its telescoping tunnel fits doors 1 3/8 to 1 31/32 inches thick.
The three-flap design uses what the listing describes as thickened outdoor-grade plastic, with thermal insulation as a stated design benefit. This is a permanent passage option rather than a way to keep a dog out of a cat-only room.
Limitation: Installation requires a cutout measuring 9 19/32 by 15 1/16 inches. Because the opening is shared, it will not separate pets by size or access needs.
Door Buddy Removable Door Prop
Best for: Renters or travelers who want to keep a door partly open for a cat without adhesive or cutting. Instead of attaching a strap, this model replaces the existing strike plate using its screws. The listing describes the holder as removable and reusable.
The door can be opened from either side by turning the knob or handle. To return it to the propped position, push or pull the door until the holder catches the door plunger. It can help create a narrow route to a litter box or feeding area when the gap is suitable for the cat but too small for the dog.
Limitation: It requires replacing the strike plate, so check the door hardware and installation arrangement before buying. The product does not specify a dog weight limit.
Baboni Large Wall Pet Door
Best for: Homes that need a larger passage through a wall rather than an interior door. This Baboni model has a steel frame, telescoping tunnel, and aluminum lock. Its tunnel fits walls 4 3/4 to 7 1/4 inches thick; the flap opening measures 10 1/4 by 16 1/4 inches.
The listing describes it as suitable for pets up to 100 pounds and says a cutout template and step-by-step instructions are included. Choose it when wall access and the listed opening dimensions match your setup, not as a simple way to restrict a dog from a cat’s room.
Limitation: Installation requires a wall cutout measuring 12 by 17 3/4 inches. The shared flap does not distinguish between cats and dogs.
Door Buddy Grey Adjustable Cat Latch
Best for: Buyers who want an adjustable, no-cut strap to limit a dog’s access to cat food or a litter box. The latch uses adhesive on the door and frame, and its adjustable strap lets you set the opening width. The listing says it can stop dogs up to 120 pounds.
It is similar to the Door Buddy latch-and-stopper option, but this grey version does not include a door stopper. Choose it if you only need the adjustable latch and strap; consider the stopper-included model if propping the door is also important.
Limitation: The listing says not to install it on drywall. The adhesive-based setup may not suit every door surface or household arrangement.
Buying Guide: How To Choose A Cat-Proof Doggie Door
Do you need a pet passage or a dog barrier?
A flap door provides a shared route for animals that can use the same opening. A latch or door prop is a better match when a cat needs access to a room but a dog should stay outside. These approaches solve different problems, so decide whether you want independent passage or pet separation first.
Will the opening fit your cat and block your dog?
Measure your cat and consider the gap needed for comfortable passage. A narrow door opening only helps keep a dog out if the dog cannot fit through it. The Door Buddy listings describe an adjustable gap, but the suitable width depends on the animals in your home.
How much installation work is acceptable?
Strap models attach with adhesive, while the removable prop uses the existing strike-plate screws. Baboni’s door and wall models require measured cutouts. Confirm the product’s stated door or wall thickness range and cutout dimensions before choosing a flap door.
Which specifications should you compare?
- Pet size: Baboni lists a 40-pound limit for its medium door and up to 100 pounds for its large wall model. Door Buddy lists up to 120 pounds for its latch products.
- Door or wall fit: Match the tunnel range and opening dimensions to the installation location.
- Included parts: The grey Door Buddy latch does not include a stopper; the latch-and-stopper version does.
- Room access: A flap door does not selectively keep a dog away from cat food or litter.
Frequently Asked Questions
Can a cat door keep a dog out?
A standard flap door is a shared opening, so it does not automatically keep a dog out. An adjustable door latch or prop may help if the opening fits the cat but is too narrow for the dog.
Which option avoids cutting a door?
The Door Buddy strap products use adhesive, while the Door Buddy door prop replaces the strike plate. The Baboni flap doors require door or wall cutouts.
Is the Door Buddy door prop adhesive-based?
No. Its listing says it replaces the existing strike plate with the supplied strike plate using existing screws.
Can the Baboni medium door separate a cat from a dog?
No. It provides a shared flap opening for pets. It is not described as a selective cat-only access system.