Best Locking Flap Dog Doors in 2026

WEATHER RESISTANT: The soft, tinted flap has a magnetic closure to help keep your home protected from the outdoors

EASY INSTALLATION: Replacing the flap is a quick and easy do-it-yourself project the only tool you need is a screwdriver

COMPATIBLE DOORS: Flap fits PetSafe Extreme Weather Pet Door, PetSafe Wall Entry Pet Door, PetSafe Sliding Glass Pet Door, PetSafe Freedom Patio Panel Door, PetSafe Freedom Aluminum Pet Door, PetSafe Plastic Pet Door

FREEDOM FOR YOUR PET: Let your dog go outside for potty breaks and playtime on their own schedule

SIZE MEDIUM: Designed for pets up to 40 lb; flap opening measures 8 1/4" W x 12 1/4" 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

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 and hardware for your convenience

OPTIONS THROUGHOUT YOUR HOME: Place multiple cat doors in closet doors, laundry room doors, or cabinets for exclusive access to food or litterbox areas; designed for cats and small dogs up to 15 lb

SELECTIVE ENTRY CAT DOOR (Screens on Entry only): Uses RFID to read your cat’s implanted ID microchip, allowing your cat access without letting in stray animals—learns up to 32 identities; programmable collar tags are sold separately for cats without microchips. SIMPLE ONE BUTTON Programming. Helps prevent intruder animals from entering your home.

MICROCHIP COMPATIBILITY: Works with 9 (Avid Secure), 10 (FDXA) and 15 (FDXB) digit microchip numbers; if unsure of your pet’s microchip number, you can check with your veterinarian, pet shelter or animal rescue.

DOOR OPENING: The Microchip Cat Door Flap opening is 4 3/4” (H) by 5 5/8” (W) and can be installed in doors, windows or walls – accessories are available from SureFlap.

SOLID DESIGN - constructed with a sturdy Aluminium frame and featuring a hard wearing, Flexible Flap, the Aluminium Pet Door is ideal for homes with multiple Pets and can withstand even the most energetic of pets

EASY FITTING –The provided Cutting Template and flexible plastic screws provide a flush and precise finish through Wood, PVC, Metal and Brick.

MANUAL LOCKING - Allowing owners to control the movements of their Pets, the Aluminium Pet Door features a sliding Closing Panel, allowing you to keep Pets inside and harsh weather out

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: 10 1/4"W x 16 1/4"H. Frame: 14 1/4"W x 21 1/16"H. Cutout in wall:12"W x 17 3/4"H.

EASY INSTALLATION: This pet door easily installed in all types of interior and exterior walls; cut-out template and step-by-step instructions are included, simple to follow instructions walk you through the install.

Durable, low-maintenance, weatherproof pet flap with inner telescoping frame

Made from clear, weather-resistant, unbreakable Lexan

For cats up to 12 pounds

Energy efficient structural foam molded plastic

Adjustable frame telescopes ¾-inch to 1 ¾-inch thickness

Innovative Double Vinyl Flap design creates energy efficient air pocket for maximum insulation

Frame Size: 14" -by-19" ; Flap Size: 10.5”-15”, Recommended Door Thickness: 1 1/4" to 2"; White Plastic & Aluminum Lining: Keep Your Restless Pet Healthy And Active Without Ever Having To Open A Door Again

For Dogs & Pets Up To 100 LBS: Durable Enough To Handle Day-To-Day Use; Bite and Chew Proof Tested; Easily Prevent Any Unwanted Guests From Entering

Soft Flexible Heavy-Duty Vinyl Flap With Magnetic Closure: For Your Pet’s Comfort And Ease Of Use; Will Not Warp Over Time Or Under Extreme Temperatures

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

Namsan is dedicated to researching pet supplies, this pet screen door is authorized by Namsan, which made of quality ABS material, durable and sturdy.

Build-up the provided screws with nuts onto this dog door frame would enough sturdy and never fall down easily, the door flap can be replaced anytime.

Built magnetic into the door frame can keep automatically closing when your dog sliding the screen door, even you can lock the door by the 2 sides blue lock if you would like to prevent your pets from walking freely.

4 Switch Modes: Depets cat door interior door has four independent models to lock with switches - swing out only, in only, both in and out, and fully locked, easy control of your pet's in and out.

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), our cat door is suitable for installation on doors and thin walls. This cat door exterior door is suitable for cat lighter than 17.64 lb and waist circumference shorter than 23.62".

Easy To Install: Complete instructions included, you can easily install our doggy door in windows, doors, cupboards etc..

White Large cat flap W/liner

4 way locking

Brush strip to reduce energy loss and silent action

✔ FLEXIBLE INSTALLATION: A through wall pet door or cat door is perfect for an insulated dog house, dog kennel, or patio landing; Small, Medium, Large, and Extra Large size dog door for wall gives any sized pet a doggy door for ideal pet door use; includes secure locking cover. Pet door for wall allows pets to come and go; dog doors for large dogs can be hard to come by, but Endura offers doggy door for wall for big and small dogs alike to use with ease.

✔ SAVE ON YOUR ENERGY BILL: Award winning double flap dog doors and cat doors are designed for maximum energy efficiency even in the most extreme weather; doggie door for wall patented technology seals against 50 mph winds and resists temperatures as low as -40 degrees F. An XL dog door (extra large dog door), is great for larger breeds; the small size is perfect as a cat door for wall; pet doors for dogs free up your time playing doorman to them. No more pet accidents with dog door flap.

✔ EASY TRAINING FOR YOUR DOG OR CAT: Endura Flap wall mount dog door features a three-sided magnet design adjustable for training or for timid pets while providing the strength you need to keep the wind out. Dog door replacement flaps available to keep your dog door wall mount good as new; pet door replacement flap made with the same insulating material. Dog door in wall entry blends in with your home; extra large dog door extreme weather wall entry pet door; the best doggy door wall mount.

🐱 4 WAY LOCKING : The cat door with lock have 4 switch modes, the pet doors for cats could be adjusted by the red and green switches with tabs, can be set to open, in only, out only or fully locked, easily adjustable making it easy to keep your pets in or out

🐱 EASY TO INSTALL : The cat doors for interior doors have detailed installation steps, this large cat door can be installed easily in a short time. 8 screws and its caps included in the set make you easily install in doors, cupboards, panels and walls, etc

🐱 SAFE&THOUGHTFUL : The cat door with lock have transparent cat flap that cat can see through. The pet doors for cats have silent brush that can reduce the noise from the door closing. 4 way locking of the big cat door meets cat's daily need. The cat flap door with magnet that let the flap can be quickly reset when the cat passes. Inner frame edge of the cat interior door get polished, so as not to hurt cat

SIZE: It’s a large cat door, outer size: 9.25"(w) x 9.92"(H) x 2.16"(D), Inner size: 7.08"(W) x 7.48"(H), Cut-Out Size: 7.7"(W) x 8.3"(H), suitable for installation on doors, thin metal doors and walls, The cat door is suitable for walls with a thickness of 2.36 inches. If the wall exceeds this thickness, there will be gaps in the cat door. suitable for cats lighter than 17 Lb and waist circumference less than 23"

4 WAY LOCKING: The cat flap door could be adjusted by the Red and Green switches with tabs, can be set to open, in only, out only or fully locked, easily adjustable making it easy to keep your pets in or out

CAT FLAP: Transparent flap preferred by most pets, draft and rainproof brush sealed flap with closure. Brush strip to reduce energy loss and silent action, ensure that neither the pets nor the owner will be disturbed

☞4 WAY SWITCH MODE --- The doggie door could be rotate it to 4 modes with the arrow and icons to 4 modes: out only, in only, both in and out, and fully locked, easy control of your pet's in and out.

☞SIZE & APPLICATION --- Outer Size: 9.8" x 11.6" x 2.15"(W x H x D), Inner size: 7.7" x 8.9"(W x H), Cut-Out Size: 8.27" x 9.25" (W x H), suitable for installation on doors and thin walls, suitable for cat and doggie lighter than 27.54 lb and waist circumference shorter than 24.8"

☞SAFE & THOUGHTFUL --- The transparent flap let pet see through the door. Exterior rain seal is for waterproof. Brush strip eliminates noise from the door closing.

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 fully locked, easy control of your pet's in and out.

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 installation on doors and thin walls, suitable for cat lighter than 27.54 lb and waist circumference shorter than 24.8" Improved Weather.

High Quality --- Made of ABS material, weather-resistant, the surface is smooth and durable. It provides a fixed groove with snap tabs for weather-proof brush strip, firmly fix the brush strip. Even if the brush strip comes off, easy to put it back into the fixed groove. This greatly help the brush strip reduce noise, stop rain drop, wind or pest like mosquito to the most.

Convenient Pet Screen Door: Inside size 14x12x0.5inch, outside size: 16x14x0.5 inch.This pet screen door is designed for screen windows or doors to allow your pets to get in/out. It's so convenient that they can get indoor or outdoor on their own.

Self-Closing & Lockable: Our dog screen door with built-in magnetic can keep the door automatically closed when your dog leaves. You can even lock the door to prevent your pets go out at night or when you are not at home.

Sturdy & Durable: Made of high quality ABS material. Screws reinforcement makes our pet screen door sturdy enough and never easily fell apart. It can last for long time.

Medium dog door

Robust locking panels

Suitable for dogs up to 18-inch

GIVE YOUR PETS FREEDOM: No more planning your schedule around potty breaks, your four-legged friends can come and go on their time

SOLID ALUMINUM FRAME: Designed to withstand wear and tear, the strong metal frame with its reinforced aluminum corners can handle active and multi-pet households

DURABLE CONSTRUCTION: Includes a flexible, tinted flap; great for indoor and outdoor storm, wood, PVC, and metal doors

Medium Size: Outer Size: 7.5" x 7.8" x 2" ( W x H X D); Inner size: 5.9" x 6.3" ( W x H) ; Cut-Out Size: 6.3" x 6.7" (W x H); Fit Cats up to 15 lbs (with a waistline less than 15")，Suitable for any wall or door that is up to 50mm thick.

Perfect Cat Door: A great solution to give your cat access to any interior room, while giving you complete control. Perfect for accessing to the bedroom or the litter box when kept behind closed doors to keep the dog and kids out.

Thoughtful Design: Transparent flap let pet see through the door. Exterior screen of the cat door is for water resistent. Brush strip reduces noise from the door closing.

SELECTIVE, SAFE – The Magnetic Locking system frees your feline to explore, allowing only your Cats to return through the Cat Flap due to the convenient and safe Magnetic collar key.

WEATHER PROOFING - The Staywell Deluxe Magnetic Cat Flap features a Magnetic Door and internal Draught Excluder that act as insulation, resisting strong winds and Keeping heat in your home.

CUSTOMISABLE LOCKING – The 4 Way Locking system gives owners the opportunity to control their Cat´s movements, safely keeping them inside or letting them out with ease

EASY INSTALLATION this cat door is suitable for wooden doors, PVC doors, metal doors and walls//INSTALLATION IN GLASS NO. A tunnel extension is available separately

LOCKING SYSTEM to close your cat door, simply place the closure panel

DIMENSIONS the dimensions of the small cat flap (S) are 23.60 cm x 19.80 cm; maximum shoulder width 14.70 cm. It is well suited for cats, kittens and small dogs up to 7 kg

【Weather Resistant】-The soft colored water baffle has a magnetic closure device, which can be environmentally friendly and reduce noise, and can also help protect your house from outdoor weather.

【Compatible Doors】-Soft, durable, two-way flap suitable for extreme weather pet doors, in-wall pet doors, sliding glass pet doors, free terrace panel doors, free aluminum pet doors, plastic pet doors, effectively protect pets from being clamped by hard door panels hurt.

【Easy to install】 - The Replacing flap is a quick and easy do-it-yourself project; the only tool you need is a screwdriver. Let your dog go outside for free breaks and playtime on their own schedule.

★PERFECT SOLUTION : The 4 Way Locking Pet Door for cats and dogs can be set to unlocked, in-only, out-only or locked. Give your cat or small dog the freedom to come and go without bothering you or lock it at night. Can also be used on an interior door to give your cat access to a bedroom or litter box closet, for example.

★SUITABLE PET DOOR FOR SMALL DOGS AND CATS: Can be used for pets up to 15 pounds (7.5 x 2.2 x 7.6"). doggie door ,doggy door,kitty door,cat door,dog door.

★EASY TO INSTALL CAT FLAP: Complete instructions included for easily installing in windows, doors, cupboards etc; The telescopic frame fits perfectly without leaving the inner part of the door exposed to your pet's paws, dirt or moisture.

A locking device made of plastic for secure locking when the flap is not needed

Suitable for any thickness with optional doors or customers own tunnel

For cats and small dogs up to 7 kg

【2-WAY MODELS, SIMPLE OPERATION】The 2 Way adaptable locking system pet door provides owners control over their pet's movements, ensuring safety and peace of mind. Easy to operate -open in/out; closed- only inside/only outside.

【ULTIMATE CONVENIENCE】The ultimate convenience for owners, the pet door offers your pets the freedom and independence to come and go as they please.

【EASY INSTALLATION】Our 2 Way Pet Door can be Easily installed with the provided cutting template and installation guide. Fitting the Pet Door into thicker Doors has been made simple with the optional tunnel extension.

White electromagnetic cat door

Includes two magnets

Self lining to 2-3/8-inch

Dog Door Size: Ownpets dog door size of inner frame is 6.61(W) * 9.53(H)inches and the outline border measures 9.84(W) * 13.38(H)inches. Suitable for pets up to 20 lbs small dogs/puppy or cats.

Energy-saving Flap: Weatherproof magnetic closure and UV-resistant flap, Perfect for hot and cold climates,provides energy efficiency and helps protect against extreme weather.

Solid Aluminum Frame: This type of pet door for dogs is made out of Aluminum material that is proved to be sturdy and stainless. Do not worry about broken and bitten easily.