PetSafe Extreme Weather Extra Large Aluminium Dog Door – Insulated Triple Flap

The PetSafe Extreme Weather Extra Large Aluminium Dog Door is a heavy-duty pet door designed for very large and active dogs. Combining a strong aluminium frame with PetSafe's triple-flap insulated design, it provides a durable entrance while helping reduce draughts and cold air passing through the opening.

With an impressive 349mm × 603mm flap opening, this Extra Large model provides plenty of room for bigger dogs and is particularly well suited to busy households, kennels and exterior buildings where strength and durability are important.

Important: This aluminium model is designed for doors approximately 37.5mm to 50mm thick. If you're fitting into a thinner uPVC door panel, we also offer an Extra Large Dog Door suitable for uPVC panels.

Heavy-Duty Aluminium Frame for Large Dogs

Large dogs can put considerably more force through a pet door than a small dog or cat. The aluminium frame provides a strong and durable structure designed to cope with regular use by bigger and more active pets.

This makes the Extreme Weather Extra Large particularly suitable for:

• Large and extra-large dogs
• Active dogs
• Multi-dog households
• Kennels
• Exterior buildings
• Frequently used pet entrances

Triple-Flap Extreme Weather Design

A conventional dog door normally has a single flap separating your home from the outdoors. The PetSafe Extreme Weather design uses a three-flap system to provide additional protection against outside conditions.

The multiple flap arrangement helps:

• Reduce cold draughts
• Reduce flowing air through the pet opening
• Improve insulation compared with a conventional single-flap door
• Provide additional protection during cold and windy weather

Insulated Centre Flap

Positioned between the flexible outer flaps is a lightweight insulated centre section. This creates an additional barrier between the inside and outside of the building.

Although the insulating section is relatively slim, when all three flaps are correctly aligned it makes an important contribution to reducing heat loss through such a large pet opening.

Adjustable Flap Alignment

The triple-flap system can be adjusted after installation so the individual sections line up correctly.

Correct alignment helps the flexible flaps, centre insulating section and magnetic closures work together effectively, so it is important to follow the installation instructions carefully when fitting the door.

Flexible Flaps with Magnetic Closure

The flexible outer flaps are designed to move easily as your dog passes through the opening and then return towards their closed position.

Magnetic closures help hold the flaps in position when the door isn't being used, helping reduce unwanted movement caused by normal draughts and wind.

Extra Large Opening for Bigger Dogs

The Extra Large model has a substantial 349mm wide × 603mm high flap opening, providing comfortable access for many large and extra-large dogs.

Because dogs of the same breed can vary considerably in size, we strongly recommend measuring your individual dog before ordering.

Measure your dog at its widest point and check both its body width and height against the usable flap opening.

Internal Slide-In Closing Panel

An internal slide-in closing panel is supplied with the dog door. This allows you to close the pet entrance when you don't want your dog using it.

The panel can be particularly useful overnight, when you're away from home or whenever unrestricted access isn't required.

Key Features

• Genuine PetSafe Extreme Weather Dog Door
• Extra Large size
• Strong aluminium frame
• Designed for large and active dogs
• Triple-flap insulated construction
• Insulated centre flap
• Helps reduce draughts and cold air
• Flexible outer flaps
• Magnetic flap closures
• Adjustable flap alignment
• Large 349mm × 603mm pet opening
• Internal slide-in closing panel
• Replacement outer flap available
• Suitable for doors approximately 37.5mm–50mm thick

PetSafe Extreme Weather Extra Large Dimensions

• Overall Frame Size: 413mm × 689mm
• Flap Opening: 349mm × 603mm
• Door Thickness: 37.5mm–50mm

Important – Check the Cut-Out Before Installation

Always use the installation template and instructions supplied with the dog door when marking and cutting your door.

Do not cut the installation opening using website measurements alone. Check the supplied PetSafe template against the actual product before making any permanent alterations to your door.

Allow Space for the Closing Panel

The internal closing panel needs sufficient vertical clearance so it can be inserted and removed.

With a pet door of this size, this is particularly important. Check the available space around the proposed installation position before cutting the door.

Replacement Flap Available

If one of the flexible outer flaps becomes damaged or worn after extended use, a genuine replacement is available separately.

Replacement flap reference: PetSafe PAC11-11040 Extra Large Replacement Flap.

Being able to replace individual wearing components can considerably extend the useful life of the complete dog door.

Important – Check Your Door Thickness

This aluminium Extreme Weather model is designed for doors approximately 37.5mm to 50mm thick.

This is especially important when fitting into a uPVC door because many uPVC door panels are considerably thinner.

If you have a thinner uPVC panel, see our Extra Large Dog Door for uPVC Panels.

What's Included?

• PetSafe Extreme Weather Extra Large Aluminium Dog Door
• Triple-flap assembly
• Insulated centre flap
• Internal slide-in closing panel
• Installation fixings
• Installation instructions

Important Security Information

This is an exceptionally large pet opening and it must not be treated as a security device.

The opening is large enough that a person may potentially be able to pass through it. You should therefore consider the location of the dog door carefully and make sure appropriate security measures are used elsewhere within the property.

Young children must also be supervised around a dog door of this size, as they may be able to pass through the opening.

Frequently Asked Questions

Is the frame aluminium?

Yes. This Extreme Weather model uses a strong aluminium frame, making it particularly suitable for larger and more active dogs.

How big is the actual opening?

The usable flap opening is approximately 349mm wide × 603mm high.

How many flaps does it have?

The Extreme Weather design uses a triple-flap system with an insulating centre section positioned between the flexible outer flaps.

Does it help reduce draughts?

Yes. The three-flap construction and magnetic closures are designed to reduce air movement and draughts compared with a conventional single-flap pet door.

What thickness door will it fit?

This model is designed for doors approximately 37.5mm to 50mm thick.

Can I fit it into a uPVC door panel?

You must check the thickness of your particular panel first. Many uPVC panels are thinner than the minimum thickness required for this model.

For thinner panels, see our Extra Large Dog Door for uPVC Panels.

Can I stop my dog using the door?

Yes. An internal slide-in closing panel is supplied so you can close the pet entrance when required.

Can I buy replacement flaps?

Yes. The compatible replacement outer flap is available separately under reference PAC11-11040.

Which size should I buy for my dog?

Always measure your individual dog rather than choosing solely by breed. Compare your dog's width and height with the 349mm × 603mm usable opening before ordering.

I'm not sure whether this will fit my door. Can you help?

Yes. Send CatFlaps.co.uk a photograph of your door together with its approximate thickness and your dog's measurements. We'll be happy to help you choose the correct dog door before you start cutting.

Pet Door Specialists – Here to Help

CatFlaps.co.uk has been supplying cat flaps, dog doors and replacement pet door parts since 2001, backed by more than 30 years of experience in the window and door industry.

We've supplied hundreds of thousands of pet doors and accessories throughout the UK. With an extra-large dog door, getting the size and installation right is particularly important, so if you're unsure about anything, please contact us – we're happy to help.