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Dog Doors for Walls

Wall-mounted dog doors create a dedicated route without occupying an exterior door. Choose the model by finished wall depth, pet size, access controls and exposure.

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Showing 9 products, sorted by featured.

Choose a through-wall dog door by depth and access style

Measure the finished wall from inside face to outside face, including siding and trim. Check utilities and structure before cutting; a tunnel from one model family is not a substitute for another.

Compare current models and starting product prices. Select options on the product page.
ProductChoose it forFrom
Wall-Mounted Pet Door - Up to 3 in. WallsManual flap system for thin walls up to 3 inches. Verify the model-specific cutout.$263.00
Wall-Mounted Pet Door - 4–10 in. WallsManual flap system for finished wall depths from 4 to 10 inches.$279.00
Wall-Mounted Pet Door - Up to 16 in. WallsManual flap system for deeper walls up to 16 inches.$309.00
Power Pet WiFi Automatic Wall-Mount Pet DoorMotorized collar-activated wall door with WiFi controls. Plan the matched tunnel and power route.$629.99
Power Pet WiFi Roll-Up Wall-Mount Pet DoorAutomatic Roll-Up wall system. Check housing clearance and electrical access.$744.99
Armor Flex Wall-Mount Pet DoorManual segmented magnetic flap with its matching wall installation system.$429.99
DuraFlex Wall-Mount Pet DoorManual flexible magnetic flap with its matching wall installation system.$304.99

Read the buying and sizing guide · Review shipping · Get help matching your opening or replacement part

Buyer's guide

Choosing dog doors for walls

Start with the pet, the opening and the conditions around it. Then compare the details that make the installation comfortable, durable and easy to service.

Power Pet Automatic Wall-Mount Pet Door product detail
Start here

The right dog doors for walls starts with the project

Compare custom-size flap models with motorized Power Pet systems, compact Roll-Up doors and heavy-duty Armor Flex or DuraFlex magnetic-flap models.

  • Wall configurations include or pair with a model-specific tunnel; tunnel pieces are not interchangeable across families.
  • Measure the complete finished wall - not just one layer - and check for wiring, plumbing and structure before cutting.
  • Automatic systems also require a protected AC power route and clearance for the complete housing.
Power Pet WiFi Automatic Wall-Mount Pet Door product detail
Fit and clearance

Fit the pet, then fit the frame

Size the pet first, then verify that the corresponding rough opening and full frame fit between framing, utilities and exterior constraints at the proposed height.

  • Separate animal fit from construction fit.
  • First choose a clear opening that lets the pet pass with modest clearance at the shoulders and sides.
  • Dog Doors Depot carries 11 standard flap sizes from Small Medium through Giant, including tall intermediate sizes that separate height from width.
Power Pet Automatic Wall-Mount Pet Door product detail
Installation planning

Plan the installation before ordering

A wall opening can involve studs, wiring, plumbing, sheathing, insulation, flashing, cladding and interior finish.

  • Investigate the assembly before ordering and use an experienced installer when conditions are uncertain.
  • Read the model-specific manual before layout, not after the opening is cut.
  • Verify tools, fasteners, sealants, tunnel pieces, frame orientation and any professional trade requirements.
Power Pet Automatic Wall-Mount Pet Door product detail
Ownership and service

Weather, service and long-term use

A square tunnel, intact weather components and correct exterior water management help the flaps close and the wall remain serviceable after the cutout is complete.

  • Surface choice changes maintenance.
  • Exterior walls and doors need periodic perimeter and water-management inspection.
Power Pet WiFi Automatic Wall-Mount Pet Door product detail
Common pitfalls

Mistakes to avoid

Do not use the flap dimensions as the wall cut dimensions and do not select a tunnel depth until the entire finished assembly has been measured.

  • A strong preflight is deliberately repetitive: measure again, check the dimensional label, compare both faces of the opening and read the exact manual.
  • Confirm that the host door, wall, screen, glass or kennel panel remains safe and functional after the cutout.
Power Pet Automatic Wall-Mount Pet Door product detail
Order readiness

From a shortlist to an order-ready configuration

Move from shortlist to order only after four checks agree.

  • The pet fits the clear opening; the building can accept the rough opening and full frame; the selected model matches the surface and thickness; and the flap, finish, cover and accessory choices match the intended use.
  • Read the finished configuration back as a complete sentence before approving it: model family, named size or custom dimensions, measurement basis, frame finish, flap count, installation surface, finished thickness and mounting location.
  • Then compare that sentence with the cart, worksheet and installer scope.
Designed around real homes

What a good dog-door decision includes

Photograph both sides of the location
Identify material and complete thickness
Map the rough opening and full frame
Check structure, utilities and hardware
Review the model installation manual
Installed pet door in a glass patio door
Decision summary

Compare the project from four angles

Primary decision

Choose the wall model by the complete finished wall depth, not just the visible drywall or masonry layer. Thin, standard and deep-wall families use different tunnel ranges.

Fit check

Size the pet first, then verify that the corresponding rough opening and full frame fit between framing, utilities and exterior constraints at the proposed height.

Installation check

A wall opening can involve studs, wiring, plumbing, sheathing, insulation, flashing, cladding and interior finish. Investigate the assembly before ordering and use an experienced installer when conditions are uncertain.

Ownership check

A square tunnel, intact weather components and correct exterior water management help the flaps close and the wall remain serviceable after the cutout is complete.

Ready when the details agree

Find the door that fits the pet and the project.

Use the sizing quiz for a guided recommendation, or return to the products above with your measurements in hand.

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Related dog-door collections and guides

Brick and masonry wallsWeather-ready wall optionsWall installation manualsInteractive sizing guideCustom size calculator
Questions, answered

Common questions about dog doors for walls

What should I compare first when shopping dog doors for walls?+

Choose the wall model by the complete finished wall depth, not just the visible drywall or masonry layer. Thin, standard and deep-wall families use different tunnel ranges. The defining question for Dog Doors for Walls is what the frame will pass through and what must remain functional around it. A flap opening is only the pet passage; the installed frame occupies more room and may interact with structural members, door rails, glass edges, screen frames, locks, trim and weather seals. Compare the product’s rough opening and outer dimensions with a drawing or taped outline on both faces of the proposed location. If the outline crosses hardware, uneven panels or required edge clearances, change the location or model before ordering.

How do I know whether dog doors for walls will fit?+

Size the pet first, then verify that the corresponding rough opening and full frame fit between framing, utilities and exterior constraints at the proposed height. Check the clear flap opening for the pet, the rough opening for the cut and the tip-to-tip frame for the available mounting area.

What should an installer verify for dog doors for walls?+

A wall opening can involve studs, wiring, plumbing, sheathing, insulation, flashing, cladding and interior finish. Investigate the assembly before ordering and use an experienced installer when conditions are uncertain. The exact product instructions and selected SKU should be available before any permanent opening is made.

How should I maintain dog doors for walls?+

A square tunnel, intact weather components and correct exterior water management help the flaps close and the wall remain serviceable after the cutout is complete. Record the model and size, keep moving surfaces clean and replace only verified compatible service parts.

Can I use the sizing quiz before ordering dog doors for walls?+

Yes. The sizing quiz is a useful starting point because it asks for the pet, opening type, size and weather conditions before pointing you toward a model family.

What if a standard size does not work for dog doors for walls?+

Use the custom-size workflow after checking the standard size chart. Enter whether the measurement is based on flap opening, rough opening or outer frame so the order and installer are working from the same dimensions.

How do I choose the right pet door size?+

Measure from the floor to the top of your pet’s shoulders and measure the widest point of the body. The flap should generally sit about 1–2 inches above the shoulders, with a comfortable step-over height. Use the actual pet measurements rather than breed averages.

Are these pet doors made to order?+

Yes. Frame color, flap count, size and installation type are selected for your opening. Review the measurements and selected configuration carefully before submitting an order.

Can I replace the flaps later?+

Yes. Replacement flaps, flap kits, magnets, weather stripping, locks and covers are available. Match the replacement part to the original pet-door size and model.