Large Cat Flaps for Big Cats & Small Dogs

Finding a cat flap for a bigger cat isn't always easy. Our range of large cat flaps provides a wider, more comfortable opening for large cats, big cat breeds and many small dogs that may struggle with a standard-sized cat flap.

Whether you have a large domestic cat, Maine Coon, British Shorthair or a particularly well-built moggy, choosing the correct size allows your pet to pass through comfortably without having to squeeze through the opening.

Choose from manual large cat flaps, 4-way locking models and microchip cat flaps, with options suitable for different doors, panels, walls and selected glass installations.

Cat Flaps for Maine Coons & Large Cat Breeds

Maine Coons and other larger cat breeds can be considerably bigger than an average domestic cat, particularly across the shoulders and chest. A conventional cat flap may therefore feel restrictive even when the manufacturer's recommended pet weight appears suitable.

Large cat flaps provide additional clearance, making them worth considering for breeds and larger cats including:

• Maine Coons
• British Shorthairs
• Norwegian Forest Cats
• Ragdolls
• Savannah cats
• Large domestic cats
• Many small dogs

Breed is only a guide. Individual cats can vary enormously in size, so we strongly recommend measuring your pet before ordering.

Why Choose a Large Cat Flap?

• Larger opening for big cats and small dogs
• More comfortable access for broad or heavily built cats
• Suitable for many large cat breeds
• Manual and locking options available
• Microchip-controlled models available
• Options for different types of doors and panels
• Weather-resistant designs for external installations
• Suitable for everyday entry and exit

Large Microchip Cat Flaps

A large microchip cat flap combines a more generous opening with selective entry control. Compatible models recognise an authorised pet's implanted microchip and unlock when that pet approaches.

This can be particularly useful if you have a large cat but also want to help prevent neighbouring cats from entering your home.

Always check the individual product specifications for microchip compatibility, opening dimensions and installation requirements.

Large 4-Way Locking Cat Flaps

A 4-way locking large cat flap gives you greater control over when your pet can enter or leave the house.

Depending on the model, the four settings normally provide:

• In & Out – Your pet can enter and leave freely.
• In Only – Your pet can enter but cannot go back outside.
• Out Only – Your pet can leave but cannot come back through the flap.
• Locked – Prevents normal entry and exit.

This can be particularly useful when you want your cat indoors overnight or need greater control over their routine.

Large Cat Flaps for Small Dogs

Many large cat flaps are also suitable for small dogs. They can provide a useful alternative to a larger dog door where only a relatively small opening is required.

Don't rely on breed or weight alone when choosing a flap. Check the actual opening dimensions against your dog's height and body width before ordering.

Measure Your Cat Before Ordering

The most important consideration when buying a large cat flap is the actual opening size. Two cats of the same breed or weight can have very different body shapes.

Before choosing your cat flap, consider:

• Body Width – Measure the widest part of your cat's body.
• Shoulder Height – Check your pet can pass comfortably through the opening.
• Opening Dimensions – Compare your measurements with the individual product specifications.
• Installation Height – Position the flap so your pet doesn't have to climb excessively or crouch awkwardly.

Large Cat Flaps for uPVC Doors

Many large cat flaps can be installed into suitable uPVC door panels. Before cutting the door, check the panel construction, thickness and the cut-out required for your chosen pet flap.

Do not cut into a glazed unit. Installing a cat flap into double glazing normally requires a replacement glass unit manufactured with the appropriate opening.

Large Cat Flaps for Walls

Selected large cat flaps can also be installed through walls using compatible tunnel extensions or a suitably constructed wall tunnel.

Wall thickness varies considerably, so check the maximum tunnel depth and availability of extension sections before choosing your cat flap.

Which Large Cat Flap Do I Need?

Start with your pet's measurements and then consider how much control you need over access.

• Choose a manual cat flap for simple unrestricted access.
• Choose a 4-way locking cat flap when you want greater control over entry and exit.
• Choose a microchip cat flap when selective entry is important.

Then check that your chosen model is suitable for the door, wall or panel where you intend to install it.

Shop Large Cat Flaps

Browse our range of large cat flaps for big cats and small dogs below. We stock different sizes and access-control options to help you find the right combination of space, security and convenience for your pet.

If you're struggling to find a cat flap big enough for your cat, contact CatFlaps.co.uk with your pet's approximate measurements and we'll be happy to help you choose a suitable model.