Cat Mate 234 and 235 Manual Cat Flaps
- Simple cat door solution: Cat Mate 234 and 235 Manual Cat Flaps provide a secure and convenient way for your cat to access different areas of your home or explore the outdoors
- Door and wall installation: Perfect for door installations between 0"– 2" (wall liners available separately)
- Lockable cat flaps: Two-way (Cat Mate 234) and four-way (Cat Mate 235) locking options for personalized access control
- Energy efficient: Brush strips and magnetized flaps minimize energy loss and keep airflow outside
- Durable and long-lasting: Sturdy plastic frame and rigid polypropylene flap provide reliable performance for years

Product Details
The Cat Mate 234 and 235 cat doors are sturdy, plastic-framed cat doors with a sturdy rigid flap. The designs are compatible with doors that lead outside, as well as for those that access bedrooms, laundry rooms, and garages. The cat door features a magnet on the bottom of the flap to keep it in place when not in use as well as to prevent any outside air from entering your house. With simple instructions for easy installation, your cat will be going in and out independently in no time.
The Cat Mate 234 and 235 Manual Cat Flaps are designed for easy installation on various door materials, including aluminum, hollow core, metal, solid core, and steel doors. With lockable cat flaps and a durable plastic frame, you can trust these cat doors to offer a reliable performance for years to come.
The Cat Mate 234 features a two-way locking system, allowing you to manage your cat's movements by choosing between locked and unlocked settings.
The Cat Mate 235 comes with a four-way locking system, providing complete control over your cat's access by manually switching the lock to exit only, enter only, completely locked, or completely unlocked.
Both cat doors are designed with a tinted, opaque flap that provides privacy for your feline friend while ensuring secure closure and reducing outside air intrusion. The magnet at the bottom of the flap keeps it in place after each use, while the brush strips around the opening minimize energy loss and keep drafts at bay. These features make the Cat Mate 234 and 235 Manual Cat Flaps an energy-efficient choice for your home.
Installation is a breeze, thanks to the comprehensive instructions included with each cat door. For wall installations, additional liners will need to be purchased separately.
Backed by a 3-year warranty and a 30-day return period, you can feel confident in the quality and performance of these cat doors. Give your cat the freedom they crave while maintaining control over their movements with the Cat Mate 234 and 235 Manual Cat Flaps.
Features:
- Customizable access: Choose between Cat Mate 234's two-way locking or Cat Mate 235's four-way locking system for complete control over your cat's movements
- Tinted, opaque flap: Offers privacy while ensuring secure closure and reduced outside air intrusion
- Easy installation: Comprehensive instructions included for quick installation on a variety of door materials
- Compatibility: Works with aluminum, hollow core, metal, solid core, and steel doors
- Peace of mind: 3-year warranty and 30-day return period ensure confidence in your purchase
Size Chart
- Cat Flap5 3/4” w x 5 3/4"h
Flap Dimensions:
5 3/4" x 5 3/4"h
The entry way your dog goes through.Outside Frame Dimensions
7 5/8"w x 7 7/8"h
The outer edge of the pet door.


Rough Cut Out:
6 1/2"w x 6 7/8"h
The size of the hole needed to fit your pet door into your door.Flap Size | Lock | Flap Dimension | Rough Cut-Out | Outside Frame Dimension | Recommended Pet Height |
---|---|---|---|---|---|
Cat Flap | 2-Way Locking | 5 3/4" w x 5 3/4" h | 6 1/2" w x 6 7/8" h | 7 5/8" w x 7 7/8" h | 4" - 9" |
4-Way Locking | 4" - 9" |
Not sure if this is the correct flap size? Here is a measurement guide to help you out.
Installation Instructions

Parts
- Cutout template
- Interior frame
- Exterior frame
- Screws and screw covers
Tools
- Jigsaw
- Measuring tape
- Drill
Step 1 Position the Template
- Position the template on the installation location and trace around it.
- Make sure that the bottom of the template is about level with your pet’s stomach. You can place it lower if you would like. If you choose to place it lower, make sure that it is not too low that it compromises the structural soundness of the door/panel or forces your pet to stoop when in use.
Step 2 Make the Rough Cutout
- Prior to cutting, make sure that the cut-out line is level. Using a jigsaw, cut along the inside of that line, and be very careful to cut that hole square to the door.
- The cut-out must be level and even for the pet door flap to swing freely and function correctly.
Step 3 Test Fit the Frames
- Dry fit the frame cut-out to make sure that the pet door is swinging properly. Then follow the recommended instructions for your door or material thickness.
Step 4 Determine Door Thickness
- Take a measuring tape and determine the thickness of your door/panel.
- If you are installing your 234/235 door into a thinner panel, less than 1-¼”, it may be necessary to trim the interior frame (the one that does NOT have the swinging flap). Make sure to keep hands away from the blade and use a piece of wood to support the inside of the frame.
Step 5 For Doors/Panels 0" – 7/8” Thick
- Put the INSIDE frame (one without the flap) on the inside of the door/panel and mark the screw spots with a pencil.
- Remove the frame and drill out the 4 holes to 3/16” in diameter.
- Choose the appropriate screws from the ones included in the instruction packet.
- Position the OUTSIDE frame (one with the flap) on the exterior and screw the inside frame to it, sandwiching it to the door/panel.
- Put on the screw covers.
Step 6 For Doors/Panels 7/8” – 2” Thick
- Put the OUTSIDE frame (one with the flap) on the exterior of the door/panel and mark the screw spots with a pencil and drill them out to 3/16” diameter.
- Screw the inside frame on interior of the door using ½” screws.
- Screw exterior frame on the outside of the door with the ¾” screws.
- Put on the screw covers.
- Enjoy your new Cat-Mate 234/235.
Videos
To Replace the Flap in a Catmate or Dogmate Pet Door
FAQ
Where can I find replacement flapsThe replacement flap for this pet door can be found at Cat Mate Replacement 234 & 235 Replacement Flaps. The dimensions of these doors are identical to the now discontinued 304 and 309 cat flaps. |
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What is the difference in 2-way locking cat door and 4-way locking cat door?The two-way only locks or is unlocked, where the four-way can be set for locked, open, in only, or out only. |
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Does this come with all the Cat Mate cat door instructions and hardware?Yes, it will come with everything you need to install it, except the tools. |
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Is there a difference between the Cat Mate 4-Way Locking Cat Flap with Door Liner and the Cat Mate 4 Way Locking Cat Flap?They are actually the same doors, only the first model is just more descriptive letting you know that it does come with the liner. |
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Can you use this on an interior door?The two-way locking model 234 is actually the best cat door for interior door or wall installation. It's a simple design, but is still lockable and can be paired with tunnels for wall installs. |
||||||||||||
Is the Cat Mate 4-way locking cat flap the same size as the 221?No, the 221 is slightly larger. However, this is the same size as the Cat Mate 309 and Cat Mate 304 which is discontinued. |
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What tunnel section do I need for a Cat Mate 234 or 235 door to put it through a 7" wall and how many?The Cat Mate 234 or 235 Manual Cat Flap and Wall Framing Kit would work for the tunnel sections and you would need 3 to put it through a 7". In this case as the 235 would frame out 2" on its own and the 3 sections would give you an additional 6" and you just trim down the extra.Below is a table that outlines the liner requirement based on the thickness of the wall you are installing the dog door for wall in: |
||||||||||||
Do you have Cat Mate 4 way locking cat flap instructions?Each pet door ships with operation and installation instructions. If you want to know in advance you can find Installation instructions on this page in the Installation Instructions tab. |
||||||||||||
I lost my installation manual, where can I find instructions?On this page, go the Installation Instructions tab for detailed information. |
||||||||||||
What Manual Cat Mate pet door should I order to get the locking 4 way flap?You will want to order Model 235 which has a stock number os 03AM235. |
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Is there a version of this door big enough for dogs?Not exactly, but you can check out Dog Mate dog doors to find similar options. |
Warranty
Cat Mate/ Dog Mate/ Ani Mate 3 Year Limited Warranty
Guarantees your purchase for a period of three years from the date of original purchase against any defect arising due to faulty materials or manufacture. Accordingly, any defective item will be repaired free of charge or replaced at the manufacturer’s option provided that the defect has not been caused by neglect, misuse, or normal wear and tear and proof of purchase date is supplied. Your statutory rights are not affected.
Customer Reviews

Size Chart
- Cat Flap5 3/4” w x 5 3/4"h
Flap Dimensions:
5 3/4" x 5 3/4"h
The entry way your dog goes through.Outside Frame Dimensions
7 5/8"w x 7 7/8"h
The outer edge of the pet door.


Rough Cut Out:
6 1/2"w x 6 7/8"h
The size of the hole needed to fit your pet door into your door.Flap Size | Lock | Flap Dimension | Rough Cut-Out | Outside Frame Dimension | Recommended Pet Height |
---|---|---|---|---|---|
Cat Flap | 2-Way Locking | 5 3/4" w x 5 3/4" h | 6 1/2" w x 6 7/8" h | 7 5/8" w x 7 7/8" h | 4" - 9" |
4-Way Locking | 4" - 9" |
Not sure if this is the correct flap size? Here is a measurement guide to help you out.

Parts
- Cutout template
- Interior frame
- Exterior frame
- Screws and screw covers
Tools
- Jigsaw
- Measuring tape
- Drill
Step 1 Position the Template
- Position the template on the installation location and trace around it.
- Make sure that the bottom of the template is about level with your pet’s stomach. You can place it lower if you would like. If you choose to place it lower, make sure that it is not too low that it compromises the structural soundness of the door/panel or forces your pet to stoop when in use.
Step 2 Make the Rough Cutout
- Prior to cutting, make sure that the cut-out line is level. Using a jigsaw, cut along the inside of that line, and be very careful to cut that hole square to the door.
- The cut-out must be level and even for the pet door flap to swing freely and function correctly.
Step 3 Test Fit the Frames
- Dry fit the frame cut-out to make sure that the pet door is swinging properly. Then follow the recommended instructions for your door or material thickness.
Step 4 Determine Door Thickness
- Take a measuring tape and determine the thickness of your door/panel.
- If you are installing your 234/235 door into a thinner panel, less than 1-¼”, it may be necessary to trim the interior frame (the one that does NOT have the swinging flap). Make sure to keep hands away from the blade and use a piece of wood to support the inside of the frame.
Step 5 For Doors/Panels 0" – 7/8” Thick
- Put the INSIDE frame (one without the flap) on the inside of the door/panel and mark the screw spots with a pencil.
- Remove the frame and drill out the 4 holes to 3/16” in diameter.
- Choose the appropriate screws from the ones included in the instruction packet.
- Position the OUTSIDE frame (one with the flap) on the exterior and screw the inside frame to it, sandwiching it to the door/panel.
- Put on the screw covers.
Step 6 For Doors/Panels 7/8” – 2” Thick
- Put the OUTSIDE frame (one with the flap) on the exterior of the door/panel and mark the screw spots with a pencil and drill them out to 3/16” diameter.
- Screw the inside frame on interior of the door using ½” screws.
- Screw exterior frame on the outside of the door with the ¾” screws.
- Put on the screw covers.
- Enjoy your new Cat-Mate 234/235.
Videos
To Replace the Flap in a Catmate or Dogmate Pet Door
FAQ
Where can I find replacement flapsThe replacement flap for this pet door can be found at Cat Mate Replacement 234 & 235 Replacement Flaps. The dimensions of these doors are identical to the now discontinued 304 and 309 cat flaps. |
||||||||||||
What is the difference in 2-way locking cat door and 4-way locking cat door?The two-way only locks or is unlocked, where the four-way can be set for locked, open, in only, or out only. |
||||||||||||
Does this come with all the Cat Mate cat door instructions and hardware?Yes, it will come with everything you need to install it, except the tools. |
||||||||||||
Is there a difference between the Cat Mate 4-Way Locking Cat Flap with Door Liner and the Cat Mate 4 Way Locking Cat Flap?They are actually the same doors, only the first model is just more descriptive letting you know that it does come with the liner. |
||||||||||||
Can you use this on an interior door?The two-way locking model 234 is actually the best cat door for interior door or wall installation. It's a simple design, but is still lockable and can be paired with tunnels for wall installs. |
||||||||||||
Is the Cat Mate 4-way locking cat flap the same size as the 221?No, the 221 is slightly larger. However, this is the same size as the Cat Mate 309 and Cat Mate 304 which is discontinued. |
||||||||||||
What tunnel section do I need for a Cat Mate 234 or 235 door to put it through a 7" wall and how many?The Cat Mate 234 or 235 Manual Cat Flap and Wall Framing Kit would work for the tunnel sections and you would need 3 to put it through a 7". In this case as the 235 would frame out 2" on its own and the 3 sections would give you an additional 6" and you just trim down the extra.Below is a table that outlines the liner requirement based on the thickness of the wall you are installing the dog door for wall in: |
||||||||||||
Do you have Cat Mate 4 way locking cat flap instructions?Each pet door ships with operation and installation instructions. If you want to know in advance you can find Installation instructions on this page in the Installation Instructions tab. |
||||||||||||
I lost my installation manual, where can I find instructions?On this page, go the Installation Instructions tab for detailed information. |
||||||||||||
What Manual Cat Mate pet door should I order to get the locking 4 way flap?You will want to order Model 235 which has a stock number os 03AM235. |
||||||||||||
Is there a version of this door big enough for dogs?Not exactly, but you can check out Dog Mate dog doors to find similar options. |
Warranty
Cat Mate/ Dog Mate/ Ani Mate 3 Year Limited Warranty
Guarantees your purchase for a period of three years from the date of original purchase against any defect arising due to faulty materials or manufacture. Accordingly, any defective item will be repaired free of charge or replaced at the manufacturer’s option provided that the defect has not been caused by neglect, misuse, or normal wear and tear and proof of purchase date is supplied. Your statutory rights are not affected.