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Cat Mate 221 Cat Door

Cat Mate 221 Cat Door

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$49.99
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$49.99
Regular price
$39.99
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  • Large 7" x 7" cat door designed for big cats and small dogs up to 14" shoulder height
  • Four-way lock mechanism for secure control of pet access
  • Suitable for materials 0"–2" thick, including doors, storm doors, and thin panels
  • Energy-efficient brush strip around the clear, rigid Polypropylene flap
  • Easy installation with included template and hardware

Product Details


The Cat Mate 221 Large Cat Door is a top cat flap for those seeking a versatile and efficient solution for their furry friends' comings and goings. With its generous 7" x 7" flap, this pet door accommodates large cats weighing over 20 pounds and small dogs up to 14" shoulder height. It's perfect for indoor or outdoor use, giving your pets the freedom to explore while you enjoy peace of mind.

The Cat Mate 221 features a four-way locking system, offering you ultimate control over your pet's access. Easily set the lock to unlocked, locked, in-only, or out-only as needed. The durable plastic frame is lined with brush weatherstripping for a weather-proof seal, and the clear, rigid Polypropylene flap is designed to withstand daily use.

Installation is a breeze, thanks to the included template and hardware. This cat door fits materials 0"–2" thick, making it ideal for storm doors, interior/exterior doors, and thin panels like plexiglass. Once installed, the magnetic closure ensures the flap remains in place, keeping out drafts and wind.

The large flap size also accommodates even the "fluffiest" of kitties, making it a favorite among those with larger pets.

The Cat Mate 221 Large Cat Door is the perfect blend of functionality, durability, and convenience for you and your pets. Experience the freedom of a well-designed pet door today.

 Please Note: The Cat Mate 221 "Large Cat Flap" and the Cat Mate 221 "Small Dog Door" are identical products except for the packaging (the part you throw away). Since the Cat version is available in brown and, currently, the Small Dog version is not, purchase the large cat version if you want a brown frame and have a small dog.

Not the indoor cat door you're looking for? Check out our full selection of cat doors for doors and small dog flaps.  

Features:

  • Versatile access control with four-way locking system (unlocked, locked, in-only, out-only)
  • Durable plastic frame and lined with brush weatherstripping for a weather-proof seal
  • Magnetic closure keeps the flap in place and prevents wind from entering
  • Clear, easy-to-clean Polypropylene flap makes it easy for pets to see through
  • Ideal for controlling access to litter boxes, food, or outdoor spaces
 

Benefits:

  • Prevents active nocturnal cats from interrupting your sleep to eat or use the litter box
  • For indoor installations, it allows you to put your litter box in a more convenient place to eliminate odors from entering certain parts of the house
  • 4-Way lock allows you to control your pet's entry and exit 

Size Chart

Flap Dimensions:

7"w x 7 1/4"h

The entry way your dog goes through.

Outside Frame Dimensions

9 1/4"w x 10"h

The outer edge of the pet door.
flap dimensions
frame dimensions
rough cutout dimensions

Rough Cut Out:

8 5/8"w x 10"h

The size of the hole needed to fit your pet door into your door.

Flap Dimensions:

7"w x 7 1/4"h

The entry way your dog goes through.

Outside Frame Dimensions

9 1/4"w x 10"h

The outer edge of the pet door.
flap dimensions
frame dimensions
rough cutout dimensions

Rough Cut Out:

85/8"w x 10"h

The size of the hole needed to fit your pet door into your door.

Flap Dimensions:

7"w x 7 1/4"h

The entry way your dog goes through.

Outside Frame Dimensions

9 1/4"w x 10"h

The outer edge of the pet door.
flap dimensions
frame dimensions
rough cutout dimensions

Rough Cut Out:

85/8"w x 10"h

The size of the hole needed to fit your pet door into your door.

Flap Dimensions:

7"w x 7 1/4"h

The entry way your dog goes through.

Outside Frame Dimensions

9 1/4"w x 10"h

The outer edge of the pet door.
flap dimensions
frame dimensions
rough cutout dimensions

Rough Cut Out:

85/8"w x 10"h

The size of the hole needed to fit your pet door into your door.
Flap SizeFlap DimensionRough Cut OutOutside Frame DimensionRecommended Pet Height
Large Cat Door7" w x 7 1/4" h8" w x 8 3/4" h9-1/4" w x 10" h5" - 10"

Not sure if this is the correct flap size? Here is a measurement guide to help you out.

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Additional Information

Frame Material

Plastic

Flap Material

Acrylic

Flap Colors

Clear

Flap Thickness

1/8

Warranty Period

3 years

Return Period

30 days

Flap Type

Single Flap

Your Maximum Pet Size

Cats, Large Cats

Climate Suitability

Temperate-3 Season

Flap Design

Single, One Part, Rigid, Thin Flap

Ability to Lock Flap

Deluxe (4-way lock)

Can Be Installed In

Aluminum Door, Hollow Core Door, Metal Door, Polycarbonate, Plywood or Other Thin Material, Solid Core Door, Steel Door

Award Winning Design

No

Sealing Value

Average

Wind Resistance

Average

Self Framing

Yes

Replacement Flaps Available

Yes

Insulation Value

Low

Installation Instructions

installation video image
Installation icon Difficulty Easy
Installation icon Steps 11
Installation icon Time Required 1-2 Hours
Installation icon Sections 02
Installation icon Flags 02

Parts

  • Cat Mate 221 Pet Door
  • Installation Template
  • Screws

Tools

  • Electric Jigsaw
  • Drill

Please read instructions & notes thoroughly before installation.

Step 1 Mark the Outline

  • Place template in desired position on door and draw round it.
  • We recommend the bottom of the hole is approximately level with your pet’s stomach.

Step 2 Make the Cutout

  • Use an electric jig-saw to cut along inside of drawn line.
  • Be careful to cut hole square to the door, particularly with thicker doors.
  • Ensure frames are free-fitting in hole.

Step 3 Door Thickness

  • Determine thickness of door panel (t).

Step 4 Adjust the Frame

  • If necessary, cut interior frame (frame without swinging flap) to correct length with sharp knife.
  • Keep hands clear of blade and support inside of moulding with a suitable piece of wood.

Step 5: For door panels 0 - 7/8" thick Position the Frame

  • Position interior frame on inside of door and mark four screw positions.

Step 6 Drill Holes

  • Remove frame and drill screw clearance holes in panel to approximately 3/16 inch diameter.

Step 7 Select Screws

  • Select appropriate screws.

Step 8 Position the Outside Frame

  • Position exterior frame on outside of door. Screw interior frame to it by using appropriate screw for panel thickness (t) (see Fig. 8).
  • Finally, fit screw caps.

Step 9: For door panels 7/8" or more thick Drill the Holes

  • Drill out four screw holes in exterior frame to allow close clearance on screws.
  • (Recommended drill 3/16 inch diameter).

Step 10 Attach Interior Frame

  • Screw interior frame on inside of door, using short 1/2 inch screws.

Step 11 Attach Exterior Frame

  • Screw exterior frame on outside of door using 3/4 inch screws. Finally, fit screw caps.

Videos

To Replace the Flap in a Catmate or Dogmate Pet Door

FAQ

Where can I find replacement flaps?

Replacement Flaps for this Cat Flap may be found at Cat Mate 221 Large Cat Replacement Flap.

Is the flap on the cat mate 221 large cat door clear?

The flap is clear, but tinted darker.

Can I use a different flap that is clear instead?

Flaps usually are not interchangeable between models as they attach to the door differently, so the flap that comes with the door is the only option that is compatible for pet mate cat mate doors.

Is the flap flexible?

No, the flap is hard plastic.

What is the thickness range for this door?

This door fits materials 0-2" thick and is great for storm doors and interior/exterior doors.

Can I install the 221 in a wall?

It is possible to install the two halves on either side of your wall for an interior cat door, however there is no cat mate 221 wall liner, so you would need to find a diy way to build a tunnel and attach the frames, making sure to caulk the edges to prevent water leaking into the wall. The Cat Mate 234/235 is a similar smaller product that can be installed in walls.

Are the magnets removable?

No, they are not. If your cat is having issues pushing through, you can put some tape over the magnets on the frame to lessen the attraction.

Can I install this in glass?

Yes, thin panels and thinner material like plexiglass can accommodate this door.

Can I lock this door at night?

Yes, there is a built-in 4-way locking feature.

What does a 4-way lock mean?

That means there are 4 locking options: 1) unlocked 2) locked 3) locked going out only 4) locked coming in only

What pet supplies hardware comes with this door?

Short and long screws, and screw hole covers.

Is the cat mate large cat door good for interior installation?

It can be used on interior or exterior doors.

Is the cat mate large cat flap door the same as the chubby kat door?

It is not the same, they are just both for larger pets.

Is this considered a good big cat door?

Yes this is a very good, best seller, economical choice if you need a cat flap with a little extra room.

Where can I find a Dog Mate large dog door?

The Dog Mate 215 and 216 are larger pet doors in stock that are available in two sizes. The flap size for the 215 is 8 3/4" w x 10 1/4" h and the 216 is 11 3/4" w x 14 1/8" h.

Does the manufacturer make a dog mate large dog door?

They do, those would be the Dog Mate 215 and 216 dog doors.

I bought a Model # 221WD in the past. Is this the same pet door?

Yes it is. It is the Small Dog Door with a flap size of 7"w x 7"h.

How much does shipping cost?

Shipping is calculated at checkout.

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

Cat Mate 221 Cat Door

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Cat Mate 221 Cat Door

Size Chart

Flap Dimensions:

7"w x 7 1/4"h

The entry way your dog goes through.

Outside Frame Dimensions

9 1/4"w x 10"h

The outer edge of the pet door.
flap dimensions
frame dimensions
rough cutout dimensions

Rough Cut Out:

8 5/8"w x 10"h

The size of the hole needed to fit your pet door into your door.

Flap Dimensions:

7"w x 7 1/4"h

The entry way your dog goes through.

Outside Frame Dimensions

9 1/4"w x 10"h

The outer edge of the pet door.
flap dimensions
frame dimensions
rough cutout dimensions

Rough Cut Out:

85/8"w x 10"h

The size of the hole needed to fit your pet door into your door.

Flap Dimensions:

7"w x 7 1/4"h

The entry way your dog goes through.

Outside Frame Dimensions

9 1/4"w x 10"h

The outer edge of the pet door.
flap dimensions
frame dimensions
rough cutout dimensions

Rough Cut Out:

85/8"w x 10"h

The size of the hole needed to fit your pet door into your door.

Flap Dimensions:

7"w x 7 1/4"h

The entry way your dog goes through.

Outside Frame Dimensions

9 1/4"w x 10"h

The outer edge of the pet door.
flap dimensions
frame dimensions
rough cutout dimensions

Rough Cut Out:

85/8"w x 10"h

The size of the hole needed to fit your pet door into your door.
Flap SizeFlap DimensionRough Cut OutOutside Frame DimensionRecommended Pet Height
Large Cat Door7" w x 7 1/4" h8" w x 8 3/4" h9-1/4" w x 10" h5" - 10"

Not sure if this is the correct flap size? Here is a measurement guide to help you out.

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Frame Material

Plastic

Flap Material

Acrylic

Flap Colors

Clear

Flap Thickness

1/8

Warranty Period

3 years

Return Period

30 days

Flap Type

Single Flap

Your Maximum Pet Size

Cats, Large Cats

Climate Suitability

Temperate-3 Season

Flap Design

Single, One Part, Rigid, Thin Flap

Ability to Lock Flap

Deluxe (4-way lock)

Can Be Installed In

Aluminum Door, Hollow Core Door, Metal Door, Polycarbonate, Plywood or Other Thin Material, Solid Core Door, Steel Door

Award Winning Design

No

Sealing Value

Average

Wind Resistance

Average

Self Framing

Yes

Replacement Flaps Available

Yes

Insulation Value

Low

Installation Instructions

installation video image
Installation icon Difficulty Easy
Installation icon Steps 11
Installation icon Time Required 1-2 Hours
Installation icon Sections 02
Installation icon Flags 02

Parts

  • Cat Mate 221 Pet Door
  • Installation Template
  • Screws

Tools

  • Electric Jigsaw
  • Drill

Please read instructions & notes thoroughly before installation.

Step 1 Mark the Outline

  • Place template in desired position on door and draw round it.
  • We recommend the bottom of the hole is approximately level with your pet’s stomach.

Step 2 Make the Cutout

  • Use an electric jig-saw to cut along inside of drawn line.
  • Be careful to cut hole square to the door, particularly with thicker doors.
  • Ensure frames are free-fitting in hole.

Step 3 Door Thickness

  • Determine thickness of door panel (t).

Step 4 Adjust the Frame

  • If necessary, cut interior frame (frame without swinging flap) to correct length with sharp knife.
  • Keep hands clear of blade and support inside of moulding with a suitable piece of wood.

Step 5: For door panels 0 - 7/8" thick Position the Frame

  • Position interior frame on inside of door and mark four screw positions.

Step 6 Drill Holes

  • Remove frame and drill screw clearance holes in panel to approximately 3/16 inch diameter.

Step 7 Select Screws

  • Select appropriate screws.

Step 8 Position the Outside Frame

  • Position exterior frame on outside of door. Screw interior frame to it by using appropriate screw for panel thickness (t) (see Fig. 8).
  • Finally, fit screw caps.

Step 9: For door panels 7/8" or more thick Drill the Holes

  • Drill out four screw holes in exterior frame to allow close clearance on screws.
  • (Recommended drill 3/16 inch diameter).

Step 10 Attach Interior Frame

  • Screw interior frame on inside of door, using short 1/2 inch screws.

Step 11 Attach Exterior Frame

  • Screw exterior frame on outside of door using 3/4 inch screws. Finally, fit screw caps.

Videos

To Replace the Flap in a Catmate or Dogmate Pet Door

FAQ

Where can I find replacement flaps?

Replacement Flaps for this Cat Flap may be found at Cat Mate 221 Large Cat Replacement Flap.

Is the flap on the cat mate 221 large cat door clear?

The flap is clear, but tinted darker.

Can I use a different flap that is clear instead?

Flaps usually are not interchangeable between models as they attach to the door differently, so the flap that comes with the door is the only option that is compatible for pet mate cat mate doors.

Is the flap flexible?

No, the flap is hard plastic.

What is the thickness range for this door?

This door fits materials 0-2" thick and is great for storm doors and interior/exterior doors.

Can I install the 221 in a wall?

It is possible to install the two halves on either side of your wall for an interior cat door, however there is no cat mate 221 wall liner, so you would need to find a diy way to build a tunnel and attach the frames, making sure to caulk the edges to prevent water leaking into the wall. The Cat Mate 234/235 is a similar smaller product that can be installed in walls.

Are the magnets removable?

No, they are not. If your cat is having issues pushing through, you can put some tape over the magnets on the frame to lessen the attraction.

Can I install this in glass?

Yes, thin panels and thinner material like plexiglass can accommodate this door.

Can I lock this door at night?

Yes, there is a built-in 4-way locking feature.

What does a 4-way lock mean?

That means there are 4 locking options: 1) unlocked 2) locked 3) locked going out only 4) locked coming in only

What pet supplies hardware comes with this door?

Short and long screws, and screw hole covers.

Is the cat mate large cat door good for interior installation?

It can be used on interior or exterior doors.

Is the cat mate large cat flap door the same as the chubby kat door?

It is not the same, they are just both for larger pets.

Is this considered a good big cat door?

Yes this is a very good, best seller, economical choice if you need a cat flap with a little extra room.

Where can I find a Dog Mate large dog door?

The Dog Mate 215 and 216 are larger pet doors in stock that are available in two sizes. The flap size for the 215 is 8 3/4" w x 10 1/4" h and the 216 is 11 3/4" w x 14 1/8" h.

Does the manufacturer make a dog mate large dog door?

They do, those would be the Dog Mate 215 and 216 dog doors.

I bought a Model # 221WD in the past. Is this the same pet door?

Yes it is. It is the Small Dog Door with a flap size of 7"w x 7"h.

How much does shipping cost?

Shipping is calculated at checkout.

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.