The best dog door wall insert depends on your dog’s size, wall thickness, and preferred frame material. The Baboni medium model suits pets up to 40 pounds, while its large version is listed for pets up to 100 pounds. VOSOIR is an option for dogs up to 110 pounds and walls within its stated thickness range. PetSafe offers medium and large wall-entry choices, with extension kits available separately for thicker walls.
| Product | Best For | Key Fit Detail |
|---|---|---|
| Baboni Medium | Pets up to 40 lb | Wall thickness 4 3/4–7 1/4 in |
| Baboni Large | Pets up to 100 lb | Wall thickness 4 3/4–7 1/4 in |
| VOSOIR Large | Pets up to 110 lb | Wall thickness 3.95–7.5 in |
| PetSafe Medium | Dogs up to 40 lb | Extensions sold separately for thicker walls |
| PetSafe Large | Dogs up to 100 lb | Extensions sold separately for thicker walls |
Baboni Medium Three-Flap Wall Door

Best for: Dogs or cats weighing up to 40 pounds when the wall is between 4 3/4 and 7 1/4 inches thick. This model has an 8 1/4-by-12 1/4-inch flap opening, a steel frame, a telescoping tunnel, and an aluminum lock.
Baboni lists a 9 7/8-by-13 3/4-inch wall cutout and includes a cutout template and step-by-step installation instructions. Its three-flap design and size make it a practical choice for buyers who need a smaller opening than the large models provide.
Limitation: The opening is smaller than the large options, and the stated tunnel range does not cover walls thicker than 7 1/4 inches.
Baboni Large Three-Flap Wall Door

Best for: Larger dogs or pets up to 100 pounds. The flap opening measures 10 1/4 by 16 1/4 inches, and the product includes a steel frame, telescoping tunnel, and aluminum lock.
The listed wall-thickness range is 4 3/4 to 7 1/4 inches. Baboni specifies a 12-by-17 3/4-inch cutout and includes an installation template and instructions. Choose this model over the medium version if your pet needs the larger listed opening and the wall fits the tunnel range.
Limitation: Confirm the cutout dimensions before installation; the larger frame requires a larger wall opening than the medium model.
VOSOIR Large Aluminum Wall Door

Best for: Large pets up to 110 pounds and buyers seeking an all-aluminum frame. Its flap opening is 18.7 by 9.92 inches, and the stated wall cutout is 10.6 by 18.9 inches. The expandable channel fits walls from 3.95 to 7.5 inches thick.
The product describes double magnetic flaps, heat- and cold-resistant flap materials, and dust-proof furring strips. These details make it worth comparing with the other large options when reducing drafts and keeping dust or insects out is a priority.
Limitation: The manufacturer advises checking the size chart in product images before buying. Its weight guidance and opening measurements should both be checked against your pet.
PetSafe Medium Telescoping Wall Door

Best for: Dogs up to 40 pounds in homes where installing a pet door in a human door may not be possible. The telescoping tunnel fits walls 4 3/4 to 7 1/4 inches thick. PetSafe describes its frame as durable plastic that will not rust.
Choose this medium model if the dog’s size and wall thickness suit the listed specifications and you prefer a plastic frame. It provides a wall-entry option without requiring a door-mounted installation.
Limitation: For walls thicker than 7 1/4 inches, compatible extension kits are sold separately.
PetSafe Large Telescoping Wall Door

Best for: Dogs up to 100 pounds that need a large PetSafe wall-entry model. Like the medium version, it has a telescoping design for walls 4 3/4 to 7 1/4 inches thick and a plastic frame that the brand says will not rust.
This option is better suited than the medium PetSafe door when the dog falls within the large model’s stated weight limit. Compare the opening dimensions in the product listing with your dog’s height and width before choosing.
Limitation: The supplied product details do not state the flap opening dimensions. Extension kits for walls thicker than 7 1/4 inches are sold separately.
Buying Guide: How To Choose A Dog Door Wall Insert
What size opening does your dog need?
Do not choose by weight limit alone. Compare your dog’s shoulder height and body width with the listed flap opening, and allow comfortable clearance. The supplied details give opening measurements for both Baboni sizes and VOSOIR, but not for the PetSafe models. Check the current listing for PetSafe dimensions before purchase.
How thick is the wall?
Measure the full wall thickness where the door will sit. Baboni’s listed tunnel range is 4 3/4 to 7 1/4 inches; VOSOIR’s is 3.95 to 7.5 inches. PetSafe lists a 4 3/4-to-7 1/4-inch range and separately sold extensions for thicker walls. A mismatch can prevent the tunnel from fitting as intended.
Which frame and flap features matter?
Baboni lists a steel frame and aluminum lock. PetSafe specifies a durable plastic frame that will not rust. VOSOIR describes an all-aluminum alloy frame and double magnetic flaps. Compare materials and flap construction according to your priorities, but verify all measurements and installation requirements for the specific model.
What should you check before cutting the wall?
Confirm the cutout size, wall thickness, and installation location before making an opening. Baboni includes a template and instructions, while VOSOIR provides a cutout measurement and recommends checking its size chart. If the wall contains wiring, plumbing, or structural components, identify them before cutting.
Frequently Asked Questions
Can a dog door wall insert fit an exterior wall?
Baboni says its door can be installed in interior and exterior walls. For other models, check the product listing and installation instructions for the intended wall type.
Is a telescoping tunnel necessary?
A telescoping tunnel helps accommodate a range of wall thicknesses. Measure your wall and compare it with the model’s stated range before buying.
Are the Baboni medium and large models interchangeable?
No. They have different flap openings, frames, and cutout dimensions. Select the model whose opening suits your pet and whose cutout fits your installation plan.
Which listed model supports the highest pet weight?
VOSOIR lists pets up to 110 pounds. Baboni Large and PetSafe Large list pets up to 100 pounds.
Do PetSafe wall doors include extensions for thick walls?
The product details say compatible extension kits are sold separately for walls thicker than 7 1/4 inches.