9 Best Dog Doors for Double Sliding Glass Doors (November 2026)
The best dog doors for double sliding glass doors include the PetSafe Dog Door for Sliding Glass Door (best overall), the PetSafe Dog Door for Sliding Glass Door for medium-to-large dogs, and the VEVOR Dog Door for Sliding Glass Door for drafty rooms.
On this page (8 sections)
- Which dog door for double sliding glass door suits your home?
- How these dog doors for double sliding glass doors compare
- How we compared these patio inserts
- What to measure before you buy a dog door for double sliding glass door
- Do you need a locking dog door for a double sliding glass door?
- Glass panel or screen insert for your patio door?
- Will a dog door fit a French door or a hinged door?
- The verdict on dog doors for double sliding glass doors
The best dog door for a double sliding glass door is the PetSafe 1-Piece XL, a single assembled panel that drops into the track without cutting glass and takes extra-large dogs up to 220 lb. If your dog weighs under 100 lb, the 2-Piece PetSafe in Large leaves more of the walkway open.
A double sliding door has two glass panels sharing a track, and the pet insert takes the place of one edge of that track beside your human door. That means the fit depends on two numbers: your track height and your dog's flap opening.
Our sliding glass dog door insert guide covers the full category if you want more options. And if you're unsure whether your glass door can take one at all, read can a dog door be installed in a glass door first.
Our picks at a glance
-
1
-
2
Best for medium-to-large dogsPetSafe Dog Door for Sliding Glass Door
9.2/10 our score
See it on Amazon -
3
- 4
Check itYGNNJY Dog Door for Sliding Glass Door
Best for warm climates - 5
Check itVEVOR Dog Door for Sliding Glass Door
Best for cold weather - 6
Check itFurrFinesse Large Dog Door for Sliding Glass
Best for dogs under 75 lb - 7
Best for multi-pet homesCheck it - 8
Check itEillion All-Metal Sliding Glass Dog Door, Large
Best for opening inward - 9
Check itPetoasis Magnetic 3-Flap Sliding Glass Dog Door
Best for windy spots
Which dog door for double sliding glass door suits your home?
The PetSafe 1-Piece XL is the best overall pick, while each of the others wins on a specific need, from drafty rooms to multi-pet households. Choose by your dog's size and the weather your patio faces before comparing extra features.
PetSafe Dog Door for Sliding Glass Door: Best overall
- One assembled glass panel
- Fits doors 75 7/8 to 80 11/16 in tall
- XL flap 13 11/16 x 23 3/4 in
- Latch kit locks the sliding door
A single assembled panel for extra-large dogs that slides into the track, takes no cutting and comes back out when you move.
Pros
- Arrives as one piece with no sections to connect
- Closing panel plus latch kit control access
- Tempered glass and aluminum frame
Cons
- Takes 16 1/2 in out of the walk-through opening
- Too wide a flap for small dogs
PetSafe's one-piece panel is the easiest of the group to live with. It arrives assembled, so there are no connecting bars to line up, and it adjusts from 75 7/8 to 80 11/16 in to sit in the track of most standard sliding doors.
The XL flap measures 13 11/16 in wide by 23 3/4 in high, with a 4 1/4 in step-over. That opening suits giant breeds up to 220 lb, so compare your dog's shoulder height and chest width to the flap rather than weight alone.
One thing to plan for: the panel is 16 1/2 in wide and eats that much of the walk-through opening. On a double slider where both panels move, that still leaves a workable gap for people.
The closing panel slides over the flap to hold your pet in or keep other animals out, and the latch kit lets you lock the sliding glass door afterward. The aluminum frame and tempered glass are built for outdoor weather, and the whole panel comes with you when you move.
It weighs 19.3 lb, which is light enough for one person to lift into the track. The flap uses a magnetic closure to pull itself shut, and the glass sweep and weather stripping work with the frame to keep drafts at the edges.
If your dog is smaller than the XL flap, the wide opening is wasted space and a smaller model leaves more walkway.
PetSafe Dog Door for Sliding Glass Door: Best for medium-to-large dogs
- Two connecting panels
- Fits doors 76.8 to 81 in tall
- Large flap 10 1/4 x 16 3/8 in
- Comes apart for storage
The 2-Piece version in Large suits dogs up to 100 lb and breaks down into two panels when you move or store it.
Pros
- Smaller panel width than the XL
- Disassembles for easier storage
- Same closing panel and latch kit
Cons
- Recessed frames need a Patio Panel Kit sold separately
- Assembly takes longer than the one-piece
The 2-Piece PetSafe is the same idea in two connecting panels, and it's the better fit for most medium-to-large dogs. The Large size takes dogs up to 100 lb through a flap of 10 1/4 by 16 3/8 in.
Its narrower 13 1/2 in panel leaves more of the doorway free than the XL, which matters on a double slider where you still want room for people to pass. The height range runs 76.8 to 81 in.
Because it comes apart, storage and moving are easier than with the one-piece. You also get the same closing panel and latch kit, so you can lock the door once it's in.
The box adds a connecting bar, adhesive, glass sweep, keeper and latch, T-brackets and screws for the join between the panels.
One detail to know: it works with exposed and recessed frames, but recessed frames need a Patio Panel Kit sold separately. That's the main reason to consider the one-piece instead if your track sits deep in the frame.
It also takes longer to put together than the one-piece, and the join between panels is one more place to check for drafts.
VEVOR Dog Door for Sliding Glass Door: Best for drafty rooms
- Three-layer insulated flap
- Metal hinges
- Height adjusts 75 7/8 to 80 11/16 in
- Locking slide panel
A triple-layer flap with PVC on both sides and insulation in the middle helps block heat, cold and drafts in a room that faces the weather.
Pros
- Insulated flap with metal hinges
- No drilling needed
- Turn knob sets the height
Cons
- Heavier than the PetSafe one-piece
- Integrated flap design
VEVOR's XL model targets the same giant-dog market as the PetSafe one-piece, with a flap of 13 5/8 by 23 5/8 in for pets up to 220 lb. The difference is the flap itself.
It uses three layers, with PVC on both sides and insulation in the middle, so it blocks heat, cold and drafts better than a single sheet. Metal hinges keep it from warping, and the height adjusts from 75 7/8 to 80 11/16 in with a turn knob rather than drilling.
Installation needs no tools, and the integrated flap means the panel is ready in one step. A slide-down locking panel covers the opening at night or when you're out.
The frame is aluminum alloy with tempered glass in the material list, so the panel itself reads as a solid glass unit rather than a screen.
The trade-off is weight: at 25.8 lb it's heavier to lift into the track than the PetSafe. The integrated flap also means the flap comes as one unit with the panel.
If your patio gets cold or windy, that extra bulk buys you a tighter seal.
YGNNJY Dog Door for Sliding Glass Door: Best for warm climates
- Mesh screen in the upper panel
- Height adjusts 75 4/5 to 80 3/10 in
- Magnetic flap and locking mechanism
- For dogs up to 200 lb
The built-in mesh screen lets breezes through while keeping insects out, so the main glass door can stay shut on mild days.
Pros
- Screen section for airflow
- Magnetic flap seals between trips
- White aluminum frame
Cons
- Screen offers less insulation than glass
- Wide frame needs a tall track
YGNNJY's insert puts a mesh screen in the upper panel, so air moves through even when the glass door stays shut. That makes it the pick for a mild climate where you want ventilation more than insulation.
It handles large dogs up to 200 lb and adjusts from 75 4/5 to 80 3/10 in. A magnetic flap and locking mechanism close the opening between trips and seal out drafts.
The flap is the only closure type listed, so the locking mechanism works alongside the magnet rather than replacing it.
The frame is aluminum in classic white, so it blends with most patio doors. The screen keeps insects out while the flap handles the pet traffic, and the mesh covers the upper part of the panel so the dog passes through the lower opening.
Compare it against the Hakuna Pets if you also have cats: YGNNJY is sized for large dogs, while Hakuna offers three smaller flap sizes in one screen panel. For a cold-weather patio, skip both and choose the VEVOR with the insulated flap.
The screen also insulates less than glass, so it suits a mild patio better than a frosty one.
VEVOR Dog Door for Sliding Glass Door: Best for cold weather
- Metal cover over the flap
- Hinge built for low temperatures
- Height adjusts 75 7/8 to 80 11/16 in
- Tempered glass window
The upgraded metal cover and low-temperature hinge keep the flap working when the weather turns cold, and the glass window adds impact resistance.
Pros
- Hinge holds up in low temperatures
- Metal cover adds durability
- Three sizes to match your dog
Cons
- No height knob like the other VEVOR
- Heavier frame than the PetSafe
This is VEVOR's second XL entry, and it's built for winter. The metal cover over the flap is tougher than plastic, and the hinge structure is made to survive low temperatures without cracking.
The flap measures 13 5/8 by 23 5/8 in and the height adjusts from 75 7/8 to 80 11/16 in. It comes in medium, large and extra-large, so you can match a smaller dog without buying a giant opening.
The model number is CWM03-XL and the product dimensions run about 16.97 in wide by 80.32 in tall at 23.15 lb.
The tempered glass window resists impact, and the aluminum frame stands up to harsh weather. A secure lock lets you close off access at night or while you're away.
Its edge over the other VEVOR is cold-weather durability; its disadvantage is the height setup, which uses the standard slide rather than the turn knob on the triple-layer model. The metal cover also sits over the flap rather than wrapping it in insulation.
Pick this one if your patio sees hard frost and you want a flap that won't stiffen.
FurrFinesse Large Dog Door for Sliding Glass: Best for dogs under 75 lb
- Upper mesh screen
- Adjusts 75 3/5 to 80 in
- Soft frosted flap with magnetic contact
- Closing panel for planned access
A lighter insert for screen tracks that gives medium dogs a soft flap to push through and leaves the main glass panel free to slide.
Pros
- Soft flap flexes over the dog's back
- Glass door stays usable
- Removable for renters
Cons
- Not a substitute for the home security lock
- Screen-track fit only
FurrFinesse makes a lighter insert that fits screen-door tracks and adjusts from 75 3/5 to 80 in. It suits dogs up to 75 lb, so it's the pick for a medium dog rather than a giant breed.
The soft frosted flap flexes over the dog's back instead of swinging like a rigid panel, and magnetic contact pulls it shut after each trip. An upper mesh screen lets fresh air in while the dog uses the lower passage.
FurrFinesse has filed a patent application for the screen design.
Because it installs at the far left or right of the screen track, the main glass panel can still slide. A solid closing panel covers the opening at night, in bad weather or when the yard is off limits.
The aluminum frame keeps the weight down, which matters when you lift the insert in and out.
One limit to note: FurrFinesse says the closing panel does not replace the home's security lock. The fit is also limited to screen-door tracks, so measure track width and depth as well as height.
If a keyed lock matters to you, choose one of the PetSafe panels with a latch kit instead.
Hakuna Pets Dog & Cat Door: Best for multi-pet homes
- Full-height mesh screen insert
- Three flap sizes from 6.7 x 9.1 to 11.2 x 15.9 in
- Magnetic self-closing flap
- Weather panels included
One screen panel with a small, medium or large flap that serves cats and dogs together, with weather panels for the colder months.
Pros
- Works for cats and dogs in one opening
- Fits tracks up to 84.3 in tall
- UV-resistant frame and flap
Cons
- Magnetic hold is not a keyed lock
- Mesh screen insulates less than glass
Hakuna Pets sells a full-height screen insert with three flap sizes: Small at 6.7 x 9.1 in, Medium at 8.9 x 12 in and Large at 11.2 x 15.9 in. That range makes it the pick when cats and dogs share one opening.
The frame extends to suit tracks up to 84.3 in tall, so it covers taller sliders than most glass-panel inserts here. Step height is 1.4 in on every size, and an optional bottom riser adds 3 in for small pets.
Hakuna suggests measuring your pet across the widest point and from chest to shoulder, then sizing up for comfort.
A magnetic centring catch closes the flap and holds it, though Hakuna is clear that it's a magnetic hold and not a keyed security lock. Weather panels slide in to block wind and rain when you want the opening closed.
The kit weighs about 4.33 kg and the frame accepts track thickness up to 1.37 in.
The powder-coated aluminum frame and UV-resistant flap are built for sun and daily traffic. For a big dog above 75 lb, though, the flap sizes top out short of the XL options from PetSafe and VEVOR.
Eillion All-Metal Sliding Glass Dog Door, Large: Best for opening inward
- All-metal frame and panel
- Openable design swings inward
- Height adjusts 75 7/8 to 81 in
- Safety lock and weatherproof strips
An all-metal panel that opens inward to free up patio space, though it needs drilled holes in the door frame.
Pros
- All-metal frame and panel
- Swing design frees walkway space
- Safety lock included
Cons
- Needs a drill to bore holes in the door frame
- Flap direction depends on which side you fit it
Eillion takes a different approach: its panel opens inward like a small door, which frees up patio space for people moving furniture or garden gear. The all-metal frame and panel are built to handle daily use.
Eillion has filed a patent for the openable design.
It adjusts from 75 7/8 to 81 in and the flap is 10 by 16 in for dogs up to 100 lb. A safety lock controls access, and magnetic seals plus weatherproof strips keep the frame tight.
A slide-in closure panel covers the opening when the dog door is not in use.
The catch is installation. Eillion says you need to drill holes in the door frame, so this is not the renter-friendly option the others are.
The flap's swing direction is also fixed by which side you mount it on: left opens inward, right opens outward. Measure from the top track to the inner bottom track of the frame, since the stated height is based on that.
Choose it if the swing design solves a space problem and you're fine with drilling. Otherwise the no-drill PetSafe panels are easier to set up and remove.
The 14.8 in panel width also sits between the two PetSafe sizes, so walkway loss falls in the middle of the group.
Petoasis Magnetic 3-Flap Sliding Glass Dog Door: Best for windy spots
- Three-flap design with double magnets
- Tempered glass and aluminum alloy
- No-drill or drilled install
- Locking door panels
A triple-flap insert built to stay shut in strong wind and rain, with the option to drill for extra security.
Pros
- Three flaps resist blowing open
- Flap replacement service available
- Renter-friendly no-drill option
Cons
- Narrowest track range in this group
- Hardware for a drilled fix is not included
Petoasis builds its panel around three flaps with double magnets, a design aimed at staying shut in strong wind and heavy rain. If your patio is exposed, that's the feature that matters most.
The flap opening is 10 1/4 by 16 1/4 in for medium and large dogs. The frame runs 76-1/4 to 83-1/4 in and the recommended track range is 77-1/2 to 82 in, which is the narrowest fit window in this group, so measure carefully.
Petoasis also lists a 14-1/4 in reduction in the clear passage width once the panel is in.
You can install it without drilling or drill it for better security. Note that the hardware for a drilled fix is not included.
Aluminum panels and locking mechanisms control pet access, and the frame uses thickened aluminum alloy with tempered glass. Petoasis offers a flap replacement service and one free replacement within three years.
It's the lowest-scoring pick here because of that narrow track range and the missing drill hardware. Choose it when wind is your main worry and your track height falls squarely inside its window.
How these dog doors for double sliding glass doors compare
The comparison comes down to fit first and features second. Every pick here slides into an existing track, so track height and flap size decide which ones can work in your home at all.
| Product | Best for | Pet size | Flap opening | Panel width | Our score |
|---|---|---|---|---|---|
| PetSafe Dog Door for Sliding Glass Door | overall | Up to 220 lb | 13 11/16 x 23 3/4 in | 16 1/2 in | 9.7 |
| PetSafe Dog Door for Sliding Glass Door | medium-to-large dogs | Up to 100 lb | 10 1/4 x 16 3/8 in | 13 1/2 in | 9.2 |
| VEVOR Dog Door for Sliding Glass Door | drafty rooms | Up to 220 lb | 13 5/8 x 23 5/8 in | 8.8 | |
| YGNNJY Dog Door for Sliding Glass Door | warm climates | Up to 200 lb | 8.7 | ||
| VEVOR Dog Door for Sliding Glass Door | cold weather | Large dogs | 13 5/8 x 23 5/8 in | 8.5 | |
| FurrFinesse Large Dog Door for Sliding Glass | dogs under 75 lb | Up to 75 lb | 8.2 | ||
| Hakuna Pets Dog & Cat Door | multi-pet homes | Cats and dogs of all sizes | 8.0 | ||
| Eillion All-Metal Sliding Glass Dog Door, Large | opening inward | Up to 100 lb | 10 x 16 in | 14.8 in | 7.9 |
| Petoasis Magnetic 3-Flap Sliding Glass Dog Door | windy spots | Medium and large dogs | 10 1/4 x 16 1/4 in | 7.4 |
Our score weighs specs, features and buyer feedback against what you're shopping for. A product with a latch kit and a wide size range scores higher than one with a narrow fit window.
How we compared these patio inserts
We checked each panel's stated track height, flap opening, step-over, panel width and closure type against what a double sliding door needs. Fit range and flap size carried the most weight, since a panel that won't sit in your track or fit your dog is useless.
Next came access control: whether the panel includes a closing panel and a latch kit so the human door can still lock. Weather sealing, frame material and how easy the panel is to remove came after that.
Renters got extra credit for no-drill setups. Screen inserts were judged on airflow and flap size range rather than insulation, since they aren't built to seal a room.
We also weighed the size lines each brand offers. A model that comes in several flap sizes gives you room to size down without changing brands, which matters on a double slider where walkway space is already tight.
Panel width got its own check, since the widest pick here takes more than a foot and a half out of the opening people use.
What to measure before you buy a dog door for double sliding glass door
Measure your track height and your dog before you order, because those two numbers rule out most of the field. The flap opening matters more than the dog's weight on the box.
How tall is your sliding door track?
Run a tape from the top track to the bottom track, right where the insert will sit. PetSafe's one-piece fits 75 7/8 to 80 11/16 in, the 2-Piece fits 76.8 to 81 in, and the VEVOR models fit 75 7/8 to 80 11/16 in.
Taller sliders in the 91 7/16 to 96 in range need the 96 in PetSafe version instead. Hakuna's screen insert reaches 84.3 in, so it covers some taller tracks the glass panels can't.
On a double slider, measure both tracks if the two panels don't sit at the same height, and note whether the frame is exposed or recessed.
How wide should the flap be for your dog?
Measure your dog's shoulder height and chest width at the widest point, then compare those to the flap. A 220 lb dog needs something near the 13 5/8 by 23 5/8 in openings on the PetSafe XL and VEVOR XL models.
A 75 to 100 lb dog fits the 10 1/4 by 16 3/8 in PetSafe Large flap. Cats and small dogs can use Hakuna's small or medium flap.
Add a size up if your dog is between sizes. The step-over height matters too: the XL PetSafe and both VEVOR models sit 4 1/4 in off the floor, so a very small dog would need a riser or a smaller panel.
How much walkway will the panel take?
Each panel sits in the track beside your human door, so it narrows the opening people use. The XL PetSafe takes 16 1/2 in, the 2-Piece PetSafe takes 13 1/2 in, and the Eillion takes 14.8 in.
Petoasis lists a 14-1/4 in reduction in clear passage width.
On a double slider, one glass panel usually stays fixed while the other slides. Put the pet insert on the edge nearest the fixed panel so the moving panel still has room to travel.
Check that the leftover gap clears whatever you carry through the door most often, from laundry baskets to garden tools.
Do you need a locking dog door for a double sliding glass door?
Yes, if you want the door secure when the panel is in place. Look for a closing panel that slides over the flap plus a latch kit for the human door.
The PetSafe panels and both VEVOR models include a closing panel and lock. Eillion includes a safety lock.
The screen inserts, Hakuna and FurrFinesse, use a magnetic hold only and say so plainly. YGNNJY lists a locking mechanism next to its magnetic flap, which puts it between the two groups.
If locking is your main concern, our guide to a dog door for sliding glass door with lock covers the models built around it. A magnetic hold keeps the flap shut against drafts and bugs but won't stop a person from opening it.
The closing panel on a glass model is the part that blocks the opening, so the latch kit matters as much as the flap.
Glass panel or screen insert for your patio door?
A glass panel wins for insulation and security, while a screen insert wins for airflow and multi-pet homes. Pick glass if your patio faces weather or you want a latch kit; pick screen if you want ventilation and have cats as well as dogs.
When a glass panel makes more sense
Glass panels from PetSafe and VEVOR use tempered glass and aluminum frames, so they block heat and cold and include a closing panel. They also carry a latch kit, which screen inserts don't.
They're heavier and take more walkway, but they handle winter better. The VEVOR with the insulated triple-layer flap is the strongest choice for a cold, drafty patio.
The PetSafe one-piece is the lighter lift if you move the panel in and out with the seasons.
When a screen insert makes more sense
Screen inserts from Hakuna, YGNNJY and FurrFinesse let air through and keep insects out. Hakuna's three flap sizes serve cats and dogs together, and FurrFinesse leaves the main glass panel free to slide.
They insulate less and use a magnetic hold rather than a lock. Choose one for a mild climate or a multi-pet household where ventilation matters more than a tight seal.
FurrFinesse's 75 lb limit keeps it in medium-dog territory, while Hakuna's largest flap measures 11.2 x 15.9 in.
Will a dog door fit a French door or a hinged door?
No, these inserts are built for sliding tracks. A French door swings on hinges and needs a different product, so check your door type before ordering.
Our guide on whether you can put a dog door in a french door explains the options for hinged doors. A double sliding door and a French door look similar in photos but work in completely different ways.
The panels here rely on a straight track to slide into, which a hinged door doesn't have.
The verdict on dog doors for double sliding glass doors
The PetSafe 1-Piece XL is the best dog door for a double sliding glass door for most large-dog homes. It arrives assembled, fits standard track heights and includes a closing panel plus a latch kit.
Pick the 2-Piece PetSafe Large if your dog is under 100 lb and you want more walkway left over. Choose the VEVOR triple-layer model for a cold, drafty patio, or Hakuna Pets if cats and dogs share the opening.
Measure your track height and your dog's chest width first. Those two numbers decide which panel you can actually use.
Our top 3 picks at a glance
-
1
-
2
Best for medium-to-large dogs
PetSafe Dog Door for Sliding Glass Door
9.2/10 our score
See it on Amazon -
3
Frequently asked questions
How much walk-through space does a dog door panel take up?
It varies by model. The PetSafe 1-Piece XL takes 16 1/2 in out of the opening, the PetSafe 2-Piece Large takes 13 1/2 in, and the Eillion takes 14.8 in.
Leave enough clear width for people to pass.
Can I lock my sliding glass door with a pet panel in the track?
Yes, if the panel includes a latch kit. PetSafe includes one so you can lock the human door once the panel sits in place.
Screen inserts like the Hakuna Pets use a magnetic hold, which is not a keyed security lock.
Do these dog doors fit extra-large dogs?
The PetSafe 1-Piece XL and both VEVOR XL models take dogs up to 220 lb with a flap around 13 5/8 by 23 5/8 in. Measure your dog's shoulder height and chest width against the flap, not weight alone.
Do I need to cut glass to fit one of these?
No. Every pick here slides into the existing track without cutting glass, walls or frames.
The Eillion is the one exception to the no-drill idea, since its design asks you to bore holes in the door frame.
