10 Best Dog Doors That Lock 2026 in the United States

The PetSafe Sliding Glass Pet Door is designed for extra large dogs (up to 220 lbs) and fits into sliding glass doors with no cutting or permanent changes, making it great for renters or anyone wanting an easy, DIY installation. Its size is generous, with a 13 11/16" wide by 23 3/4" high flap, allowing large pets comfortable access. The door uses a sturdy aluminum frame, which holds up well against daily use and various weather conditions. It also includes a magnetic flap that helps keep drafts out and a human door lock kit for added security, so you can control when the pet door is locked.

The installation is straightforward as it fits sliding door tracks between 1" and 0.75" thick without drilling, making it less invasive than many other options. Weather protection is a strong point here, with weather stripping and a closing panel to help maintain your home's energy efficiency across seasons. The product is not compatible with smart home systems, which may be a drawback for those wanting remote control features. Also, the panel extends slightly from the door frame, which may not suit all door setups aesthetically or spatially.

This dog door represents a solid choice if you want a secure, weather-resistant, and large-sized pet door that installs easily and locks manually without needing permanent modifications.

The Baboni Pet Door for Wall is designed for large dogs, accommodating pets up to 220 pounds. Its ample size ensures that even the largest breeds can comfortably use it without any issues. The door's locking mechanism is an aluminum lock, making it durable and secure, which is crucial for keeping unwanted guests out. The frame is constructed from a combination of high-quality aluminum and alloy steel, promising durability and longevity.

Installation is relatively straightforward, with a cut-out template and easy-to-follow instructions included. This makes it a good option for both interior and exterior walls, with the telescoping tunnel accommodating wall thicknesses from 4 3/4 to 7 1/4 inches. One of the key strengths is its double-flap design, which provides excellent weather resistance and energy efficiency by helping to maintain indoor temperatures and protect against drafts.

On the downside, the pet door is quite hefty, weighing in at 22.7 pounds, which might make installation a bit challenging for some users. However, the company offers a strong after-sales guarantee, which can provide peace of mind. This pet door is best suited for large dog owners who need a sturdy, weather-resistant, and easy-to-install solution for their pets.

The PetSafe 1-Piece Sliding Glass Pet Door is designed especially for small dogs and cats, supporting pets up to 15 pounds. It fits easily into a sliding glass door track without any cutting or drilling, making it an excellent choice for renters or those wanting a temporary solution. The door's frame is made of durable aluminum with a white finish, providing a sturdy and weather-resistant barrier.

For locking, it uses a magnetic flap combined with a human door lock kit and a closing panel, offering good security and helping to keep drafts out in colder months. Installation is straightforward, with no permanent changes needed to your door, which is a big plus for apartments or seasonal use. However, it is best suited for sliding doors with thickness between 0.75 and 1 inch, so it may not fit all doors. While the flap size is comfortable for small breeds, larger dogs won’t fit through.

The materials and design provide decent weather resistance, but because it relies on a magnetic flap, extreme weather conditions might reduce its efficiency slightly. This pet door isn’t compatible with smart home systems, so it’s a simple, manual option. If you have a small pet and want a secure, easy-to-install door that doesn’t alter your home permanently, this pet door can be a convenient and reliable choice.