Description
Nipper
Dog flap for large dogs, for in a wall
Buying a dog flap that fits your home
Your interior, your pet door. We make your dog door to your choices.
The right size dog door
The right size dog door
Do you have a large size dog? Then this is his/her pet door.
The Nipper (S) cat door is suitable for standard domestic cats, known as European shorthairs.
As well, this door is intended for dogs with a shoulder height of up to 13.8 inches (35 cm) such as the Yorkshire Terrier, Shih Tzu, French Bulldog, King Charles Spaniel, Maltese, Pug, Schipperke, Brison Frisé, Chihuahua, …
For pets that are larger or smaller, we also have other sizes available, so there is always a door that fits perfectly.
Put your cat or dog in another room and leave the door open for 8.23″ (21 cm), which is the width of the door opening. If they can come to you without having to push the door further open, you’re good to go.

You can also measure your dog’s shoulder height. The door has a passage height of 9.61″ (24,4 cm) and is placed approximately 3.9″ (10 cm) above the ground. Does your dog have a shoulder height of approximately 13.8″ (35 cm) or less? Then this is the right door for your dog!

In doubt? Give your dog or cat the benefit of the doubt and choose a size larger![/us_popup][us_separator size=”small”][us_vwrapper inner_items_gap=”2rem” link=”%7B%22url%22%3A%22%22%7D”][us_hwrapper valign=”middle” inner_items_gap=”2rem” stack_on_mobiles=”1″ link=”%7B%22url%22%3A%22%22%7D”][us_image image=”33931″ size=”medium” link=”%7B%22type%22%3A%22popup_image%22%7D” css=”%7B%22default%22%3A%7B%22width%22%3A%2240%25%22%2C%22max-width%22%3A%22%22%7D%2C%22laptops%22%3A%7B%22width%22%3A%2240%25%22%2C%22max-width%22%3A%22%22%7D%2C%22tablets%22%3A%7B%22width%22%3A%2240%25%22%2C%22max-width%22%3A%22%22%7D%2C%22mobiles%22%3A%7B%22width%22%3A%22100%25%22%2C%22max-width%22%3A%22250px%22%7D%7D”]
Passage
8.23″ wide x 9.61″ high
20,9 cm wide x 24,4 cm high
Installation
3.9″ (10 cm) from the floor
Frame included
11.85″ wide x 13.23″ high
30,1 cm wide x 33,6 cm high
Frequently asked questions about dog doors in walls
Smart questions from other customers.
Absolutely! Just send us some pictures of where you want the door put and we’ll let you know if there’s anything we need to be aware of. Make sure you take photos inside and outside, and from far enough away so that you can see all the details.
The flap of this cat or dog flap cannot tear at the attachement point due to wear and tear. We guarantee free replacement for 5 years, because it will never happen anyway. That’s because we have developed a unique mounting system.
And if the cat or dog does manage to destroy the flap, replacement is very easy: at the top, the flap is held in place by an aluminium holder that is secured to the frame with a few screws. If you unscrew these screws, the flap comes loose and you can replace it with the new flap.
We have developed our dog and cat doors with particular attention to ease of installation in doors, glass and panels. This means that a specialist installer is not required, making the installation of our doors an ideal project for a local handyman or woman. A sturdy cardboard installation template is included as standard, and you will find Tips & Tricks and Instructions on this page.
The hole in the wall can indeed be closed up again. It will take a professional two half-days to do the job: first, the structural work to brick up the hole, and then a few days later to finish it off. If you are selling your house, the door may be an added attraction for dog or cat lovers. So be sure not to have it removed beforehand.
One of the things that makes our doors stand out is the non-transparent flap. You’ll need to show your dog or cat how to use it (check out the 3-step training for more info), but for a cat that’s not used to it, it’s not that clear how to find the door on its own and open it to get into a strange ‘nest’.
This has been working for thousands of customers since 2014 in 39 countries.
Indeed, during installation, we make the hole through the wall ourselves: with minimal dust and using professional equipment. Then we install the door in the wall, seal it to make it wind and watertight, and take the debris away with us.
Pipes in the wall run vertically upwards and downwards from sockets, switches, taps, light points, etc. The drains from toilets, washbasins and rainwater from upper floors also run vertically in the wall. So do not place your door below or above sockets, switches, taps, light fixtures, etc., but as far away from them as possible. And if you have a device for detecting pipes, turn on the light and plug something into the socket, as the wall scanner will work better on a pipe that is using electricity.
Finally, feel free to send us photos of the wall if you would like advice.
For the height of the installation of your cat flap or dog flap, take into account the floor inside.
That’s no problem, because our doors have a sturdy tunnel that ensures your insulation stays in place in the wall. Is it soft insulation or, for example, Isomo pellets? Then we recommend first drilling a few holes in the wall where the door is to be installed and spraying PU foam into the wall to secure the pellets. Then you can make the hole in the wall with confidence, without the insulation coming out.
Chip systems don’t guarantee the lifespan we’re expecting for our cat and dog doors. But don’t worry if you were looking for a cat flap with chip recognition, our doors have some special features that mean you might not even need a chip system. You can read all about it in this article.
Our warranty lasts for two years and we’ll always be there for you even after that. We never leave our customers behind! Any material problems will probably show up pretty quickly during the first few months anyway.
Even better, if the flap tears due to wear and tear after two years, we’ll replace it free of charge for the first five years. We’re happy to promise this, as it will never be necessary anyway! ;-)
You can come and check out our products at our factory in Duffel (Belgium), but that might not be the best option if you don’t live nearby. To make things easier, we’ve got a returns service: if the product doesn’t meet your expectations, you can return it for free. We’re happy to offer this service because the doors are never returned anyway ;-)
The delivery includes:
- the outer frame with outer flap fitted
- the 4 tunnel sections with the flap on the inside
- an inner closing frame
- a solid wood closing door
- the template for marking out the installation opening


