8 Best Dog Doors for Small Dogs and Toy Breeds (October 2026)
The best dog doors for small dogs and toy breeds include the SureFlap Microchip Pet Door for selective entry, the PetSafe Wall Entry Telescoping Pet Door for wall installation, and the PetSafe Freedom Aluminum Pet Door for a sturdy door frame.
On this page (7 sections)
The best dog door for small dogs overall is the SureFlap Microchip Pet Door because it recognizes a compatible microchip or RFID collar tag on entry. For a basic flap, the PetSafe Freedom fits pets under 15 lb, while wall models work when cutting a human door isn't an option.
A small dog door needs to fit the dog's body, the opening and the place where you plan to install it. Measure your dog and compare the actual flap opening before you choose by weight limit alone.
Use our guide to measuring your dog and door to check height, width and the installation opening. If you're still comparing door types, see how to choose a dog door.
Our picks at a glance
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1
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2
Best for wall installationPetSafe Wall Entry Telescoping Pet Door, Small
8.4/10 our score
See it on Amazon -
3
Best for a sturdy door framePetSafe Freedom Aluminum Pet Door, Small
8.3/10 our score
See it on Amazon
- 4
Check itBaboni Double-Flap Wall Pet Door, up to 12 lb
Best for a small dog and a wall - 5
Check itPetSafe Electronic Collar Key Pet Door, Small
Best for keyed access - 6
Check itPetSafe Extreme Weather Plastic Pet Door, Small
Best for added flap insulation - 7
Check itBaboni Plastic Frame Dog Door, Small Plus
Best for a thicker plastic flap setup - 8
Check itHakuna Pets Aluminum 2-Way Lock Pet Door
Best for mixed door surfaces
How we chose dog doors for small dogs
The strongest picks combine a usable opening with a clear installation fit or access feature. We compared opening dimensions, stated weight limits, flap designs, installation locations and access controls.
Our score weighs specs, features and buyer feedback against what you're shopping for. A door with a suitable weight limit can still be a poor fit if its opening is too small or its installation range doesn't match your home.
Compare the best small dog doors
The right choice depends on your dog's measurements and the surface you can install into. Compare the opening and the fit range before weighing extra features.
| Product | Best for | Opening | Access | Installation | Our score |
|---|---|---|---|---|---|
| SureFlap Microchip Pet Door | selective entry | 6 11/16 x 7 in | Microchip or RFID collar tag | Door, window or wall | 8.6 |
| PetSafe Wall Entry Telescoping Pet Door, Small | wall installation | 5 1/4 x 8 1/8 in | 8.4 | ||
| PetSafe Freedom Aluminum Pet Door, Small | a sturdy door frame | 5 1/4 x 8 1/8 in | 8.3 | ||
| Baboni Double-Flap Wall Pet Door, up to 12 lb | a small dog and a wall | 5 1/4 x 8 1/8 in | 7.9 | ||
| PetSafe Electronic Collar Key Pet Door, Small | keyed access | Electronic collar key | Door; wall kit sold separately | 7.8 | |
| PetSafe Extreme Weather Plastic Pet Door, Small | added flap insulation | 7.7 | |||
| Baboni Plastic Frame Dog Door, Small Plus | a thicker plastic flap setup | 7.3 | |||
| Hakuna Pets Aluminum 2-Way Lock Pet Door | mixed door surfaces | Two-way locking panel | 7.1 |
Best dog doors for small dogs and toy breeds
These dog doors cover selective entry, standard door flaps and wall installation. Choose the option that matches your dog's body measurements and your home's installation limits.
SureFlap Microchip Pet Door: Best for selective entry
- Reads compatible implanted microchips or RFID collar tags
- Stores up to 32 identities
- Entry-only recognition
- Opening 6 11/16 x 7 in
The SureFlap reads a compatible microchip or RFID collar tag on entry, which helps prevent unrecognized animals from coming inside. Its opening is 6 11/16 in high by 7 in wide.
Pros
- Selective entry for recognized pets
- Stores up to 32 identities
- Can be set to lock and open at chosen times
Cons
- Requires 4 C batteries, not included
- Glass or wall installation may need separate accessories
The SureFlap is the best fit here when keeping unrecognized animals from entering matters more than having a simple flap. It scans for a compatible implanted microchip or RFID collar tag on entry and can store up to 32 identities.
Its opening measures 6 11/16 in high by 7 in wide. Compare those dimensions with your dog's shoulders and body width, and check that the flap opening leaves room for comfortable passage.
The door can be installed in a door, window or wall. Wall or glass installations may need separate mounting accessories, so account for those parts and the installation method before choosing a location.
You can set a curfew time for locking and opening. The door is battery powered, using four C batteries that aren't included, and has a low-battery indicator.
Choose it for controlled entry when your dog already has a compatible microchip or can wear an RFID tag. Any animal can exit, so this is selective entry rather than a two-way lock.
PetSafe Wall Entry Telescoping Pet Door, Small: Best for wall installation
- For pets up to 15 lb
- Telescoping tunnel for 4 3/4–7 1/4 in walls
- Double flap
- Opening 5 1/4 x 8 1/8 in
This small wall door includes a telescoping tunnel for walls from 4 3/4 to 7 1/4 in thick. Its double flap and slide-in panel give you ways to limit drafts and access.
Pros
- Tunnel is included for stated wall thickness
- Closing panel controls access
- Cutting template and instructions included
Cons
- Thicker walls need a separate extension kit
- Wall cutting is required
The PetSafe Wall Entry model suits a small dog when a wall is the practical route outdoors. Its telescoping tunnel fits walls from 4 3/4 to 7 1/4 in thick, and the small size is for dogs up to 15 lb.
The flap opening measures 5 1/4 in wide by 8 1/8 in high. Measure your dog and compare that opening before you cut, even if your dog is below the stated weight limit.
The double flap is designed to provide weatherproofing, and a slide-in closing panel adds another way to control access. A cutting template and step-by-step instructions are included.
For walls thicker than 7 1/4 in, PetSafe sells compatible extension kits separately. Read our guide to choosing a wall dog door if you're comparing tunnel designs and wall materials.
PetSafe Freedom Aluminum Pet Door, Small: Best for a sturdy door frame
- For pets under 15 lb
- Reinforced aluminum frame
- Door thickness 3/8–2 in
- Opening 5 1/4 x 8 1/8 in
The Freedom pairs an aluminum frame with a flexible, tinted flap. It fits doors 3/8 to 2 in thick and includes a slide-in panel to control access.
Pros
- Reinforced aluminum frame
- Fits a range of door materials
- Installation template and hardware included
Cons
- Requires cutting the door
- The opening is smaller than some small-dog models
The PetSafe Freedom is a straightforward choice when you want an aluminum frame in an entry door. It is designed for pets under 15 lb, with a flap opening of 5 1/4 in wide by 8 1/8 in high.
The frame fits interior or exterior doors from 3/8 to 2 in thick. PetSafe includes a cutting template, installation hardware and a slide-in closing panel, which lets you close off the flap when you need to limit access.
Its flexible tinted flap is designed for storm, wood, PVC and metal doors. Confirm your door's construction and thickness before cutting, and measure your dog against the opening.
If you're deciding between a standard flap and other access controls, our pet door guide for dogs and cats covers the main options and where each can work.
Baboni Double-Flap Wall Pet Door, up to 12 lb: Best for a small dog and a wall
- For pets up to 12 lb
- Telescoping tunnel for 4 3/4–7 1/4 in walls
- Double flap
- Opening 5 1/4 x 8 1/8 in
This wall model is sized for pets up to 12 lb and uses a telescoping tunnel for walls 4 3/4 to 7 1/4 in thick. Its double flap is designed to help weatherproof the opening.
Pros
- Wall tunnel is included
- Double flap and slide-in metal panel
- Template and step-by-step instructions included
Cons
- Weight limit is lower than the PetSafe wall pick
- Wall cutout is required
The Baboni wall door is aimed at smaller dogs up to 12 lb. Its tunnel fits walls 4 3/4 to 7 1/4 in thick, and its flap opening is 5 1/4 in wide by 8 1/8 in high.
A double-flap design and slide-in metal panel give you options for limiting drafts and access. The product includes a cutout template and step-by-step installation instructions.
This is a close alternative to the PetSafe wall pick, but its stated weight limit is lower. Measure the dog and compare the opening before choosing, then check your wall thickness and the planned cutout.
PetSafe Electronic Collar Key Pet Door, Small: Best for keyed access
- Selective entry, exit and auto-locking options
- Works with collar keys
- Stores up to 5 keys
- For pets 4–15 lb
This electronic door uses a collar key to control entry and exit, with settings that include automatic locking. It can be programmed for up to five keys.
Pros
- Selective access in both directions
- Supports up to 5 keys
- Access options include auto-locking
Cons
- Requires 4 D-cell batteries, not included
- Wall installation needs a separate kit
The PetSafe Electronic Pet Door suits households that want selective entry and exit with a collar key. It is sized for cats and dogs weighing 4 to 15 lb and can be programmed for up to five electronic keys.
Its settings include selective entry, selective exit and automatic locking. The door installs in interior or exterior doors; a separate wall installation kit is available if you want to mount it through a wall.
It runs on four D-cell batteries, which aren't included. Check that your dog can comfortably pass through the small door and that a collar key is practical for daily wear.
PetSafe Extreme Weather Plastic Pet Door, Small: Best for added flap insulation
- Three-flap design
- Center insulated flap
- Fits doors 1 5/8–2 1/4 in thick
- Paintable plastic frame
The three-flap layout adds an insulated center flap between the outer flaps. Check your door thickness before choosing it, since it fits doors from 1 5/8 to 2 1/4 in thick.
Pros
- Three flaps with an insulated center flap
- Snap-on closing panel included
- Frame can be painted
Cons
- Fits a narrower door-thickness range
- Second closing panel is sold separately
The PetSafe Extreme Weather model suits a buyer looking for an insulated center flap. Its three-flap design includes a center insulated flap, and the plastic frame can be painted to match your door.
It fits standard paneled, wood, metal and PVC doors from 1 5/8 to 2 1/4 in thick. The snap-on closing panel blocks access when the flap isn't in use, while a second panel is sold separately for another layer.
Door thickness is the main fit check for this pick. Confirm the opening dimensions and your dog's fit before cutting, since the small label alone doesn't tell you whether the opening will be comfortable.
Baboni Plastic Frame Dog Door, Small Plus: Best for a thicker plastic flap setup
- For pets up to 15 lb
- Fits doors 1 3/8–1 31/32 in thick
- Two vinyl flaps and insulated middle flap
- Magnetic closure
This small door model is designed for pets up to 15 lb and doors 1 3/8 to 1 31/32 in thick. Its flap setup combines two vinyl flaps with an insulated middle flap.
Pros
- Fits many common door thicknesses
- Magnetic closure
- Template and instructions included
Cons
- Door opening dimensions aren't stated here
- Door cutout is required
Baboni's Small Plus door is an option for a two-flap setup in a standard door. It is designed for pets up to 15 lb and fits doors from 1 3/8 to 1 31/32 in thick.
The flap arrangement uses two vinyl flaps and an insulated middle flap, with magnetic closure. A cutout template and step-by-step instructions are included for installation in interior and exterior doors.
The opening dimensions aren't stated here, so confirm them before buying and compare them with your dog's measurements. Its stated door thickness range is the key fit check available for planning the installation.
Hakuna Pets Aluminum 2-Way Lock Pet Door: Best for mixed door surfaces
- Small size for pets up to 20 lb
- For doors, walls, screens and glass up to 2.8 in thick
- Two-way locking panel
- Adjustable tunnel sections
The Hakuna Pets door can fit doors, walls, screens and glass panels up to 2.8 in thick. Choose the small size for pets up to 20 lb, and confirm its flap dimensions for your dog.
Pros
- Works across several surface types
- Two-way locking panel
- Adjustable tunnel sections
Cons
- Small flap dimensions aren't included here
- Installation requires cutting an opening
The Hakuna Pets door is useful when you need one model for different surfaces, including doors, walls, screens and glass panels. The adjustable tunnel sections fit surfaces from 0 to 2.8 in thick, and the small size is for pets up to 20 lb.
A two-way locking panel lets you set access to open or locked. The magnetic flap centers itself after use, and a brush seal is designed to help block drafts.
The small flap dimensions aren't stated here. Measure your dog and confirm the opening size for the small version before cutting an opening or choosing it for a toy breed.
How do you size a dog door for a toy breed?
Measure your dog's width and height, then compare both numbers with the flap opening. The opening should let your dog pass without squeezing, and the installation cutout needs its own measurements.
A weight limit is a useful first screen, not a substitute for measuring. Our dog door sizing guide walks through the measurements to take before installation.
Which installation style fits your home?
Choose a door model if its thickness and material match the entry door you can cut. Choose a wall model if a wall is the better route and its tunnel range matches the wall thickness.
The PetSafe Wall Entry and Baboni wall model both fit walls from 4 3/4 to 7 1/4 in thick. For an overview of flap styles, see the door flaps category guide.
Do small dog doors need extra draft protection?
A flap door can let air pass through, so the flap design and closing panel matter if drafts are a concern. The PetSafe Extreme Weather model adds an insulated center flap, while the PetSafe Wall Entry uses a double flap and closing panel.
No flap design removes the need to check the fit and installation. See our guide to insulated dog doors and ways to stop drafts around a dog door.
The best small dog door depends on your dog's fit
Choose SureFlap if you want recognized pets to enter and can confirm microchip compatibility. Pick the PetSafe Freedom for a door-mounted aluminum frame, or a wall model when your wall thickness and dog's measurements fit its tunnel and opening.
Before cutting, measure your dog and installation surface. For more options by location, compare the best pet doors for dogs and cats.
Our top 3 picks at a glance
-
1
-
2
Best for wall installation
PetSafe Wall Entry Telescoping Pet Door, Small
8.4/10 our score
See it on Amazon -
3
Best for a sturdy door frame
PetSafe Freedom Aluminum Pet Door, Small
8.3/10 our score
See it on Amazon
Frequently asked questions
How do I choose the right dog door size for a toy breed?
Measure your dog's width and height, then compare those measurements with the usable flap opening. A weight limit alone can't confirm fit, since dogs with the same weight can have different body shapes.
Our dog door measuring guide explains what to measure before you choose.
Is a small dog door safe for a toy breed?
It can be a suitable fit if your dog can pass through without squeezing or catching its back. Check the opening dimensions and your dog's height and width, and make sure the flap moves freely for your dog.
Choose an access control that fits your home, such as a closing panel or selective-entry door.
Should I choose a wall or door dog flap?
Choose a wall model when you can't or don't want to cut an entry door, and check the wall thickness against its tunnel range. A door flap is usually a simpler fit when the door material and thickness match the model.
See our wall dog door guide for more wall options.
Can a microchip dog door keep other animals out?
A selective-entry door can recognize a compatible microchip or RFID tag on entry and keep unrecognized animals from entering. The SureFlap stores up to 32 identities and allows any animal to exit, so check whether that access pattern suits your home.
Confirm your pet's microchip type before choosing.
