20 Best Cat Doors [2024]

Are you looking for the best cat doors? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling cat doors.

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1 EGETOTA Cat Door Flap Medium (Outer Size 7.5' x 7.8'), 4 Way Locking for Interior Exterior Doors,... EGETOTA Cat Door Flap Medium (Outer Size 7.5" x 7.8"), 4 Way Locking for Interior Exterior Doors,...
2 Depets Large Cat Door (Outer Size 9.9' x 9.2'), 4 Way Locking Cat Flap Door for Interior Exterior... Depets Large Cat Door (Outer Size 9.9" x 9.2"), 4 Way Locking Cat Flap Door for Interior Exterior...
3 Interior Cat Door - No-Flap Cat Door for Interior Door, Cat Door Interior Door for Cats Up to 20... Interior Cat Door - No-Flap Cat Door for Interior Door, Cat Door Interior Door for Cats Up to 20...
4 CEESC Extra Large Cat Door (Outer Size 11' x 9.8'), 4 Way Locking Large Cat Door for Interior... CEESC Extra Large Cat Door (Outer Size 11" x 9.8"), 4 Way Locking Large Cat Door for Interior...
5 PetSafe Interior Cat Door: 2-Way Locking, Indoor Pet Door Flap - Tinted Privacy Door for Cat Litter... PetSafe Interior Cat Door: 2-Way Locking, Indoor Pet Door Flap - Tinted Privacy Door for Cat...
6 The Kitty Pass Interior Cat Door Hidden Litter Box Pet Door for Cats up to 21 lbs Pet Box The Kitty Pass Interior Cat Door Hidden Litter Box Pet Door for Cats up to 21 lbs Pet Box
7 PetSafe Plastic Dog and Cat Door, Small, For Pets Up To 15 lb, Paintable, Easy DIY Installation,... PetSafe Plastic Dog and Cat Door, Small, For Pets Up To 15 lb, Paintable, Easy DIY Installation,...
8 InTrans Cat Door Interior Door,No Noise Interior cat Door, Indoor cat Door,cat Hole Door for Cats Up... InTrans Cat Door Interior Door,No Noise Interior cat Door, Indoor cat Door,cat Hole Door for Cats...
9 【Upgraded Version】 EGETOTA Cat Doors Flap, Magnetic Pet Door with 4 Way Locking for Interior... 【Upgraded Version】 EGETOTA Cat Doors Flap, Magnetic Pet Door with 4 Way Locking for Interior...
10 ikuso Indoor Cat Door, Cat Door for Interior Door, Pet Doors for Cat, Kitties and Kittens ikuso Indoor Cat Door, Cat Door for Interior Door, Pet Doors for Cat, Kitties and Kittens
11 CEESC Cat Doors, Magnetic Pet Door with Rotary 4 Way Lock for Cats, Kitties and Kittens (Medium,... CEESC Cat Doors, Magnetic Pet Door with Rotary 4 Way Lock for Cats, Kitties and Kittens (Medium,...
12 PetSafe Exterior / Interior Cat Door: Staywell Big Cat 4-Way Locking Pet Door Flap for Large Cats -... PetSafe Exterior / Interior Cat Door: Staywell Big Cat 4-Way Locking Pet Door Flap for Large Cats...
13 Ideal Pet Products Cat Flap Door with 4 Way Lock, 6.25' x 6.25' Flap Size, Cream (SPF) Ideal Pet Products Cat Flap Door with 4 Way Lock, 6.25" x 6.25" Flap Size, Cream (SPF)
14 Ideal Pet Products Aluminum Sash Window Pet Door, Large, White, Cat Flap, 6.25' x 6.25' Flap Size,... Ideal Pet Products Aluminum Sash Window Pet Door, Large, White, Cat Flap, 6.25" x 6.25" Flap...
15 Baboni Pet Door for Wall, Steel Frame and Telescoping Tunnel, Aluminum Lock, Double Flap Dog Door... Baboni Pet Door for Wall, Steel Frame and Telescoping Tunnel, Aluminum Lock, Double Flap Dog Door...
16 Wordcam Large Cat Door Interior Door, XL Indoor Cat Door, Pet Doors for Cats, Kitties and Small Dogs... Wordcam Large Cat Door Interior Door, XL Indoor Cat Door, Pet Doors for Cats, Kitties and Small...
17 Ideal Pet Products Aluminum Modular Patio Pet Door, White, Medium, 7' x 11.25' Flap Size Ideal Pet Products Aluminum Modular Patio Pet Door, White, Medium, 7" x 11.25" Flap Size
18 Pet Door for Cats and Dog, Cat Flap Door for Interior Exterior Cat Door Weatherproof Pet Door 4-Way... Pet Door for Cats and Dog, Cat Flap Door for Interior Exterior Cat Door Weatherproof Pet Door...
19 Cat Door Holder Latch - Cat Door Alternative to Keep Dogs Out of Cat Litter Boxes and Food,Flex... Cat Door Holder Latch - Cat Door Alternative to Keep Dogs Out of Cat Litter Boxes and Food,Flex...
20 Cat Door,Wulikeke Interior Cat Door Pet Door for Cats Indoor Cat Door, with Screws Interior/Install... Cat Door,Wulikeke Interior Cat Door Pet Door for Cats Indoor Cat Door, with Screws...
SaleBestseller No. 1
EGETOTA Cat Door Flap Medium (Outer Size 7.5" x 7.8"), 4 Way Locking for Interior Exterior Doors,...
  • 4 Way Locking Mode --- The pet door could be adjusted by the Red and Green switches with tabs to 4 modes: out only, in only, both in and out, and...
  • Size & Application --- Outer size 7.5" x 7.8" x 2"(W x H X D), inner size:6.1" x 6.3"(W x H), cut-out size: 6.3" x 6.7" (W x H), suitable for...
  • High Quality --- Made of ABS material, weather-resistant, the surface is smooth and durable. It provides a fixed groove with snap tabs for...
  • Easy to Install --- Step by step installation instruction in the instruction manual included in sales box and installation presentation video for you...
  • Applicable scene --- It fits to being installed to interior doors, exterior doors, walls, windows, cupboards, glass, etc.
SaleBestseller No. 2
Depets Large Cat Door (Outer Size 9.9" x 9.2"), 4 Way Locking Cat Flap Door for Interior Exterior...
  • 1> 4 Switch Modes: Four independent models to lock with switches-swing out only, in only, both in and out, and fully locked, easy control of your...
  • 2> Applications: Outer Size 9.25" x 9.92" x 2.16"(W x H X D), Inner size:7.08" x 7.48"(W x H), Cut-Out Size: 7.7" x 8.3" (W x H), suitable for...
  • 3> Easy To Install: Complete instructions included, make you easily install in windows, doors, cupboards etc..
  • 4> Thoughtful Design: Transparent flap let pet see through the cat door. Exterior screen is for water resistant. Brush strip reduces noise from the...
  • 5> Assured Quality: Made of ABS plastic, weather-resistant, the surface of this cat door interior door is smooth and durable.
Bestseller No. 3
Interior Cat Door - No-Flap Cat Door for Interior Door, Cat Door Interior Door for Cats Up to 20...
  • (PATENTED) PRIVACY FOR YOUR KITTY - Meow Manor pet door for cats is a magic portal to your cat's safe haven. With our indoor cat door, your baby can...
  • EASY DIY INSTALLATION - Most cat doors on the market are put up with flimsy tape. DIYers can set up this pet door for interior doors in minutes. Our...
  • THE ONLY NO FLAP KITTY DOOR IN THE MARKET - Our cat door interior door is built with you and your feline in mind. Unlike cat doors with flaps that can...
  • NO TRAINING NEEDED - A cat door interior door with a built-in flap requires training to be used and can be bothersome with the annoying flap noise. To...
  • FOR BIGGER BREEDS - Make cat doors indoor bigger you said. We heard you! Meow Manor measures at 8.25” high and 6.50” wide and is designed to be a...
SaleBestseller No. 4
CEESC Extra Large Cat Door (Outer Size 11" x 9.8"), 4 Way Locking Large Cat Door for Interior...
  • ☞4 WAY SWITCH MODE --- The pet door could be adjusted by the Red and Green switches with tabs to 4 modes: out only, in only, both in and out, and...
  • ☞SIZE & APPLICATION --- Outer Size: 9.8" x 11" x 2.15"(W x H x D), Inner size: 7.9" x 8.7"(W x H), Cut-Out Size: 8.3" x 9.5" (W x H), suitable for...
  • ☞SAFE & THOUGHTFUL --- The transparent flap let pet see through the door. Exterior rain seal is for waterproof. Brush strip eliminates noise from...
  • ☞EASY TO INSTALL --- Complete instructions included, make you easily install in windows, doors, cupboards, panels and walls etc.
  • ☞EXCELLENT QUALITY --- Made of ABS material, weather-resistant, the surface is smooth and durable.
SaleBestseller No. 5
PetSafe Interior Cat Door: 2-Way Locking, Indoor Pet Door Flap - Tinted Privacy Door for Cat Litter...
  • PRIVATE ACCESS FOR YOUR CAT: Give your cat unlimited access to her personal spaces even when the human door is closed
  • DIY INSTALLATION: Easily fits any interior wood, storm, PVC, paneled or metal doors 1/2 - 2 in thick; includes detailed instructions, cutting template...
  • OPTIONS THROUGHOUT YOUR HOME: Place multiple cat doors in closet doors, laundry room doors, or cabinets for exclusive access to food or litterbox...
  • LOCK AND UNLOCK: The sliding lock lets you choose when to give your furry friend access to their pet area
  • DESIGNED FOR YOUR CAT: Door is designed for cats up to 15 lb
Bestseller No. 6
The Kitty Pass Interior Cat Door Hidden Litter Box Pet Door for Cats up to 21 lbs Pet Box
  • The Kitty Pass is the safest and cutest way to let your cat in and out, of closed doors.
  • Smooth, Wide opening allows your cat to pass through SAFELY, without tails getting snagged or caught up.
  • Beautiful clean lines that compliment your door perfectly.
  • Pass through opening is 7 1/2" wide and 6 1/2" height and can be used by all cats up to 20 lbs. Easily fits all standard (hollow and solid) interior...
  • Comes completely finished in a beautiful semi gloss white, or you can easily paint it yourself, to match your homes decor.
SaleBestseller No. 7
PetSafe Plastic Dog and Cat Door, Small, For Pets Up To 15 lb, Paintable, Easy DIY Installation,...
  • FREEDOM FOR YOUR PET: Let your dog go outside for potty breaks and playtime on their own schedule
  • SIZE SMALL: Designed for pets up to 15 lb; flap opening measures 5 1/8 in W X 8 1/4 in H
  • CONTROL YOUR PET’S ACCESS: The snap on closing panel allows you to control your pet’s access and keep stray animals out of your home
  • MATCH YOUR HOME DÉCOR: The paintable plastic frame allows you to match the pet door to your door’s existing color
  • DESIGNED FOR SMALL PETS: Flap opening is 5 1/4" W x 8 1/8" H and is designed for pets under 15 pounds
Bestseller No. 8
InTrans Cat Door Interior Door,No Noise Interior cat Door, Indoor cat Door,cat Hole Door for Cats Up...
  • InTrans cat door protects your cat's privacy in the most adorable way, allowing your cat to have a private space without light penetration at night....
  • InTrans innovative fixed structure of the door, suitable for any door, we provide ultra-high adhesive tape, strong screws, to achieve a foolproof...
  • Our Interior Cat door can be automatically fixed when opened at 180 degrees, without the need to install other fixed accessories. And the cat doesn't...
  • The InTans is the safest and cutest way to let your cat in and out, of closed doors.Smooth, wide opening allows your cat to pass through SAFELY,...
  • Comes completely finished in a beautiful semi gloss White, or you can easily paint it yourself, to match your homes decor.Pass through opening is 6.6"...
SaleBestseller No. 9
【Upgraded Version】 EGETOTA Cat Doors Flap, Magnetic Pet Door with 4 Way Locking for Interior...
  • 🐾 【4 Way Locking Mode】 - Our Interior Exterior Cat Door could be adjusted by the rotary lock with tabs to 4 modes: out only, in only, both in...
  • 🐾 【Size & Application】 - Outer Size 7.56" x 2.17" x 8.46"(W x H x D), Inner size:6.18" x6.30"(W x H), suitable for installation on doors and...
  • 🐾 【High Quality】 - Made of ABS material, weather-resistant, the surface is smooth and durable. It provides a fixed groove with Magnet for...
  • 🐾 【Easy to Install】 - Step by step installation instruction in the instruction manual included in sales box and installation presentation video...
  • 🐾 【Applicable scene】 - It fits to being installed to interior doors, exterior doors, walls, windows, cupboards, glass, etc.
SaleBestseller No. 10
ikuso Indoor Cat Door, Cat Door for Interior Door, Pet Doors for Cat, Kitties and Kittens
  • ღSAFE AND DURABLEღ: The indoor cat door is made of ABS material, which is wear-resistant and durable.The edges are smooth and burr-free to protect...
  • ღAPPLICABLE SCENEღ: The indoor cat door suitable for all hollow doors & solid doors & inner doors,Perfect for laundry rooms, bedrooms, basements,...
  • ღBARRIER-FREE DOOR DESIGNღ: There is no one in the house. Put the cat food in the house. With the cat door for interior door, there is no need to...
  • ღNO FALLING OFFღ:The indoor cat door is installed with screws, avoid falling off and gaps caused by tape installation, no noise and no trouble...
  • ღSIZEღExternal size: 10.55"*9.05"*2.45", pass through opening: 6.89”*1.38", suitable for 0.8"-1.78" thick doors.
SaleBestseller No. 11
CEESC Cat Doors, Magnetic Pet Door with Rotary 4 Way Lock for Cats, Kitties and Kittens (Medium,...
  • ☞CONVENIENT LOCK --- The knob-style switch is 4 way rotary, you can easily rotate it to 4 modes with the arrow and icons to control your cat's...
  • ☞IMPROVED WEATHER-PROOF BRUSH STRIP --- It provides a fixed groove with snap tabs for weather-proof brush strip, firmly fix the brush strip. Even if...
  • ☞THOUGHTFUL SCREWS --- It comes with 2 packs of 8 screws each, one is packed with short screws, the other long. Please screw in with them from both...
  • ☞EASY TO INSTALL --- Step by step installation instruction in the instruction manual included in sales box and installation presentation video for...
  • ☞MEDIUM SIZE --- Outer size: 7.56" x 8.46" x 2.17"(W x H x D), Inner size: 6.18" x 6.30" (W x H) , Cut-Out Size: 6.3" x 6.5" (W x H). it's suitable...
SaleBestseller No. 12
PetSafe Exterior / Interior Cat Door: Staywell Big Cat 4-Way Locking Pet Door Flap for Large Cats -...
  • PET SIZE: The large flap opening is perfect for cats and dogs up to 25 lb
  • TRANSPARENT FLAP: Provides visibility for your cat for shorter acclimation times
  • DURABLE DESIGN: High-impact plastic flap stands up to frequent use; may be used indoors or outdoors
  • CONTROL YOUR PET'S ACCESS: 4-way locking system allows you to set parameters around your cat's access at any time
Bestseller No. 13
Ideal Pet Products Cat Flap Door with 4 Way Lock, 6.25" x 6.25" Flap Size, Cream (SPF)
  • Durable, low-maintenance, weatherproof pet flap with inner telescoping frame
  • Made from clear, weather-resistant, unbreakable Lexan
  • For cats up to 12 pounds
  • Installs easily and securely
  • Measures 6.25 inches square
SaleBestseller No. 14
Ideal Pet Products Aluminum Sash Window Pet Door, Large, White, Cat Flap, 6.25" x 6.25" Flap Size,...
  • High quality white finish aluminum construction installs easily into most aluminum sash window styles. Minimum sash window height requirement is...
  • Locking rigid flap is made of unbreakable clear Lexan to allow pet to see through opening and is non-toxic for added safety
  • Recommended for pets 2 to 25 Pounds
  • Manufacturer Warranty does not apply to product purchased through Amazon Warehouse Deals
  • Need Assistance? E-mail Ideal Pet Products expert US-based customer care specialists seven days a week!
SaleBestseller No. 15
Baboni Pet Door for Wall, Steel Frame and Telescoping Tunnel, Aluminum Lock, Double Flap Dog Door...
  • FREEDOM AND INDEPENDENCE: Give your cats and dogs freedom to go in and out without your help, arrangement for potty breaks or play time by themselves.
  • DIMENSION AND TELESCOPING WIDTH: The telescoping tunnel accommodates walls that are 4 3/4 - 7 1/4 in thick. Flap Opening:5 1/4"W x 8 1/8"H. Frame: 9...
  • EASY INSTALLATION: This pet door easily installed in all types of interior and exterior walls; cut-out template and step-by-step instructions are...
  • DURABLE, SAFE :This Pet Door frame is made of metal laser welding process and high-quality steel aluminum alloy oxidation to ensure...
  • ENERGY-SAVING: The double-flap provides weatherproofing and energy efficiency and helps protect against extreme weather, air drafts.
Bestseller No. 16
Wordcam Large Cat Door Interior Door, XL Indoor Cat Door, Pet Doors for Cats, Kitties and Small Dogs...
  • 【TEMPLATE INSTALLATION】 : Includes full instruction manual.Using the cutting template to cut holes in the door and use the included screws to...
  • 【SAFE AND DURABLE】:The indoor cat door is made of ABS material, which is wear-resistant and durable.The edges are smooth and burr-free to protect...
  • 【BARRIER-FREE DOOR DESIGN】: There is no one in the house. Put the cat food in the house. With the cat door for interior door, there is no need to...
  • 【SIZE】:External size:12.4"x 10.63"x 2.44",pass through opening:8.46"x 7.87",suitable for 0.8"-1.78" thick doors.This extra-large cat door fits...
  • 【FRIENDLY AFTER-SALE SERVICE】:Please feel free to contact us if you need any help from us or any inquiries about the cat door, we will give you a...
Bestseller No. 17
Ideal Pet Products Aluminum Modular Patio Pet Door, White, Medium, 7" x 11.25" Flap Size
  • "modular pet door designed to fit in your sliding aluminum patio door. Adjustable height for standard aluminum sliding patio door sizes 77-5/8 inch -...
  • made from sturdy aluminum with clear tempered safety glass
  • this item will fit aluminum patio sliders only and comes in two modular sections that easily assemble into a full size pet patio door.
  • "medium size 7" x 11.25" flap size, magnetic vinyl flap". Animal Lock-Out Slide
  • manufacturer warranty does not apply to product purchased through amazon warehouse deals
Bestseller No. 18
Pet Door for Cats and Dog, Cat Flap Door for Interior Exterior Cat Door Weatherproof Pet Door 4-Way...
  • Convenient Lock: the pet door knob style switch is 4 way rotary, you can easily rotate it to 4 modes with the arrow and icons to control your cat's...
  • Quality Material: the pet door is made of quality plastic material, the surface is sturdy and durable, not easy to deform and wear, supporting for a...
  • Applicable for: the size of weatherproof pet door is approx. 8 x 8.6 x 1.2 inches, and the pet flap door is designed with slots, it's suitable for cat...
  • Easy to Install: for pet door detailed installation steps, please refer to the installation steps on the package and display it in a conspicuous place...
  • Wide Application: the cats dog pet door fits on pet carrier, glass door, interior doors, steel door, security door and window, cupboards and so on
Bestseller No. 19
Cat Door Holder Latch - Cat Door Alternative to Keep Dogs Out of Cat Litter Boxes and Food,Flex...
  • 【Let's Cat in & Keeps Dogs Out】Our Cat Door Latch allows the cat to enter and leave the room to look for food freely, the smaller space can...
  • 【Easy to Install】No tools and glue required, no modifications to the door. Simply hang the Pet Latch on the door handle and put the pin on the...
  • 【High Quality Materials】The pet door holder is made of nylon and stainless steel, which is very strong and can deter the dogs, safe baby proof.
  • 【Small Things, Big Effects】Effectively stops puppies, large dogs, crawling babies, and early toddlers from entering any room you don't want them...
  • 【The Best Choice for Pet Owners】Try LUBERDUSH's pet door Latch. You no longer have to put your cat in a cramped pet cage, to give your cat a...
SaleBestseller No. 20
Cat Door,Wulikeke Interior Cat Door Pet Door for Cats Indoor Cat Door, with Screws Interior/Install...
  • [Cute and Unique Design]: The cat door is installed with screws, no need to use glue or adhesive strips like other cat doors, avoiding peeling and...
  • [Fits Scenario]: Indoor cat door safely fits any solid or hollow interior door, perfect for laundry room, bedroom, basement, etc. Fits doors...
  • [Durable Last]: Indoor cat door made of ABS material, safe and durable. Smooth, wide opening allows your cat to pass through safely, smooth lines...
  • [Easy To Assemble]:No need hose complicated cat holes that require messy glue, pins, and tape. Your door installs easily in only 15 to 20 minutes....
  • [Without Flap Design]:There is no one in the house. Put the cat food in the house. With the cat door for interior door, there is no need to worry...

Having trouble finding a great cat doors?

This problem is well understood by us because we have gone through the entire cat doors research process ourselves, which is why we have put together a comprehensive list of the best cat doorss available in the market today.

After hours of searching and using all the models on the market, we have found the best cat doors for 2023. See our ranking below!

How Do You Buy The Best Cat Doors?

Do you get stressed out thinking about shopping for a great cat doors? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching cat doors, which is why we have assembled a comprehensive list of the greatest cat doors available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for cat doors that you consider buying. Your questions might include the following:

  • Is it worth buying an cat doors?
  • What benefits are there with buying an cat doors?
  • What factors deserve consideration when shopping for an effective cat doors?
  • Why is it crucial to invest in any cat doors, much less the best one?
  • Which cat doors are good in the current market?
  • Where can you find information like this about cat doors?

We’re convinced that you likely have far more questions than just these regarding cat doors, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for cat doors, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible cat doors. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an cat doors buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available cat doors currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of cat doors has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an cat doors?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your cat doors.
  5. Customer Ratings: Number ratings grade cat doors objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their cat doors.
  7. Product Quality: You don’t always get what you pay for with an cat doors, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an cat doors is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining cat doors information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding cat doors is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: What is the best exterior cat door?

A: Stick the cat flap template to your door,and use a spirit level to ensure it’s straight Drill a pilot hole in each corner of the template Remove the template,and join the holes together with a pencil or chalk line Use a jigsaw to cut out the correct shape (wear goggles) Sand down the edges of the hole with fine-grit sandpaper

Q: How to build your own cat door?

A: Put two of the shelves together side-by-side the long way. Attach the long sides together at the very ends and middle using the cable ties. … Tighten the cable ties until they are tight enough to hold the shelves together steadily,but loose enough to serve as a hinge. … Next,attach the last shelf the same way. …

Q: How to get your cat to use a cat door?

A: Maintenance. It’s common knowledge that cats are natural groomers. … For fun. Cats have ways of entertaining themselves,which includes scratching wooden surfaces. … Marking. Felines are territorial so they will use their scratching habits to mark their territories. …

Q: What size should a cat door be?

A: Start by measuring the distance from the bottom of your cat’s stomach to the floor. … Remove the door from its hinges and set it on two sawhorses. Place the template on the door,using the measurement from Step 1 to determine where the bottom of the cat door should be positioned. …

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