Cat Mate 235W 4-Way-Lock Cat Flap with Liner

Cat Mate 235W is a four-way-lock cat flap with a liner, listed for small to average-sized cats. Its selectable in-and-out, in-only, out-only and locked settings provide control over access, while the supplied cut-out dimensions help assess fit before installation.

At a glance

Four manual settings allow entry and exit, entry only, exit only or fully locked access.
Listed for small to average-sized cats, with a 145 mm by 145 mm flap opening.
The listing names UPVC, metal and wooden doors, as well as walls, as installation options.
Brush strips and magnetic closure are intended to help reduce draughts and rain ingress.

Price

£14.44Save 15%

Reference price: ~~£16.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Four access settings let owners restrict movement without relying on an electronic control system.
The listing provides cut-out, flap-opening and overall dimensions to help plan an installation.
Customer feedback describes quiet operation and straightforward installation into existing pet-door holes.

Technical specifications

14 specifications

Identity
Brand	Cat Mate
Model	235W
Size	M
Suitable pet	Cat
Colour	White

Dimensions and installation
Cut-out size	165 mm (6 1/2”) width by 174 mm (6 7/8”) height
Flap opening size	145 mm width by 145 mm height
Overall size	192 mm (7 5/8”) width by 200 mm (7 7/8”) height
Weight listed	0.85 Pounds
Listed installation surfaces	Suitable for UPVC doors, metal doors, wooden doors, and walls

Materials and protection
Material listed	Super-tough polymer
Closure type	Magnetic
Weather-related design	Designed with brush strips and magnetic closure to help minimise draughts and rain ingress

Access control
Lock settings	in-and-out, in-only, out-only, or locked

What to know before buying

Listing details to confirm

The title says the liner suits thicknesses up to 50 mm, while detail fields give mattress thickness, maximum compatible thickness and minimum compatible thickness as 2 Inches. Those thickness descriptions are inconsistent, so confirm the intended panel or wall depth and liner fit before buying. The listing also describes the flap for small and average-sized cats but labels its size M and dog breed size Extra Small. The magnetic closure and brush strips are stated to help minimise draughts and rain ingress, not to guarantee a sealed opening. Customer feedback reports that some users find the locking mechanism painful to operate.

Who is it for?

A good fit for

Owners of small to average-sized cats who want four manual access settings.
Buyers replacing a flap in an existing opening who can compare it with the stated cut-out dimensions.
Installations in a UPVC, metal or wooden door, or a wall, subject to confirming the thickness and required fitting method.

Less suited to

Buyers who need microchip-based access control, which is not listed for this model.
Buyers who need confirmed compatibility with a particular wall or door thickness without checking the inconsistent thickness details.

Cat Mate 235W 4-Way-Lock Cat Flap with Liner · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 5,664 ratings

5 stars72%72%
4 stars19%19%
3 stars5%5%
2 stars2%2%
1 star2%2%

Customer feedback highlights perceived quality, quiet operation, ease of use and installation into existing pet-door holes. Some customers report difficulty using the locking mechanism, so that trade-off matters if the four access settings will be changed often. These are customer impressions, while the opening dimensions and lock options are listing claims rather than evidence that the flap will fit a particular opening or feel comfortable to operate.

Positive themes

Customers describe the flap as good quality and easy to install in existing pet-door holes.
Feedback mentions quiet operation, straightforward use and cats learning to use the flap quickly.
Some customers like its appearance and report that it blends with their décor.

Negative themes

Some customers find the locking mechanism painful to use.

Mixed feedback

Feedback on the locking mechanism is mixed, with reports that it works in both directions alongside difficulty operating it.

Frequently asked questions

What access settings does the Cat Mate 235W offer?

The listing describes four settings: in-and-out, in-only, out-only and locked.

What opening and cut-out dimensions are listed?

The cut-out is 165 mm wide by 174 mm high, and the flap opening is 145 mm by 145 mm. Overall dimensions are 192 mm wide by 200 mm high.

Which surfaces can it be installed in?

The listing names UPVC, metal and wooden doors, and walls. Confirm the installation method and panel depth for your chosen location.

Does the listing clearly confirm the liner's compatible thickness?

No. The title states up to 50 mm, while detail fields report 2 Inches and do not consistently describe a minimum or maximum. Check the intended thickness with the listing before purchase.