LET CATS IN. KEEP BIGGER DOGS OUT.
Noverlina Cat Door Prop
Meet the Noverlina Cat Door Prop, a simple pet door holder that helps keep your dog out of the cat food and litter box!
Discover a convenient, no-cut alternative to a cat door or bulky pet gate.
Designed for cats and larger dogs. Check your door’s fit before ordering.
Cats and dogs under one roof?
Dog proofing can be simple.
Noverlina’s adjustable Cat Door Prop helps give your cat a space of their own — with an opening that welcomes your cat and keeps bigger dogs on the other side.
Keep the doorway wide enough for your cat to pass through, yet narrow enough to protect the food and litter area.


Noverlina makes everyday access simple. No hole cut in your door, no bulky gate to climb over, and a little more peace for your cat.

Convenient
Turn the handle to pass through from either side.

Adjustable
Choose an opening from approximately 3 to 5.5 inches.

Closable
Close the door fully without removing the latch.

Easy to fit
Installs at the existing strike plate position.

Remove
Unscrew the existing strike plate.

Replace
Fit the Noverlina latch plate.

Adjust
Set the gap to suit your pets.
INSTALLATION & TROUBLESHOOTING FAQS

A good fit starts with your door
Check the measurements and clearance before ordering. This prop is designed for standard interior swinging doors and works best when your dog is larger than your cat.

Will it be strong enough for my dog?
The prop helps restrict the doorway by size. Set the gap so your cat fits but your larger dog cannot, and check that the fitting is secure. It is not suitable when a dog can fit through the same opening as your cat.
My dog is smaller than my cat. Will it work for me?
It works best when your dog is noticeably larger than your cat. If both pets fit through the same gap, this solution will not keep the dog out.
Will it work for my door?
Use it on a standard interior swinging door with a latch and strike plate. Check the measurements and clearance before ordering. It is not intended for sliding, pocket, bi-fold or double doors.
Can it keep a baby or toddler out?
Noverlina Cat Door Prop is a pet accessory, not a child-safety device. Use a suitable child-safety gate and adult supervision where needed.
How wide can I set the opening?
The opening can be adjusted from approximately 3 to 5.5 inches. Choose the smallest comfortable gap for your cat.
How do I open and close the door?
Turn the handle to open the door and pass through. You can also close the door fully without removing the prop.
How do I remove the Noverlina Cat Door Prop?
Unscrew the latch plate and reinstall your original strike plate. Keep your original hardware in a safe place after installation.
How much is shipping and when will it arrive?
Available delivery options, shipping charges and estimates are shown at checkout. Timing varies by destination.
What if it is not right for my home?
Please refer to Noverlina’s return policy and contact our support team for help with your order.
A little help for a happier home
Choose Noverlina for a simple way to give your cat their own space. Need help? Check our store’s shipping and return policies before ordering.
EXPLORE NOVERLINA CAT DOOR PROP© 2026 Noverlina. All rights reserved.
Litter box
Cat food
Water bowl
Cat bed