10 Best Dog Doors That Lock 2025 in the United States

The PetSafe Doggy Door for Sliding Glass Doors stands out as an excellent choice for renters and apartment dwellers. Its no-cut, DIY installation is a significant advantage for those who are not handy with tools or prefer a hassle-free setup. The adjustable height feature, ranging from 75 7/8" to 81", adds to its versatility, allowing it to fit various sliding door tracks.

This dog door is designed to accommodate large dogs, with a flap opening that suits pets up to 100 pounds, ensuring comfort and safety for your furry friend. The aluminum material provides durability, while the inclusion of a security lock helps maintain your home's security. Additionally, the controlled access feature via a closing panel allows you to manage your pet's outdoor activities effectively.

It is worth noting that the aluminum panel might not offer the same level of insulation as some other materials, potentially affecting energy efficiency in extreme weather conditions. With a weight of nearly 8 pounds, it may require some effort during installation. Despite these minor drawbacks, the PetSafe Doggy Door offers a reliable and user-friendly option for pet owners who need a practical and secure solution for their large dogs.

The Petoasis Heavy Duty Aluminum Dog Door in extra-large size is designed for large dogs and fits doors at least 1 inch thick. Its main strength is the durable aluminum frame, making it sturdier and more rust-resistant than plastic or iron options, which is helpful if you want a long-lasting door. It features a magnetic closure with three insulated flaps that help keep out wind, rain, and insects, making it quite weatherproof and energy-efficient. The insulation layer can be removed for smaller dogs, adding flexibility.

The door has locking panels on both sides, improving security by preventing unwanted access when locked from the inside. Installation comes with a manual and all needed accessories, which should simplify setting it up. On the downside, the door’s weight (about 14.5 pounds) and materials may require careful handling during installation to avoid damage. While the magnetic flap is effective, very strong or persistent pets might challenge the seal over time. Also, it’s priced higher than some plastic doors, but Petoasis helps offset maintenance costs by offering flap replacements if damaged by pets.

Customer ratings are solid, indicating good satisfaction for this model. This dog door is an excellent option for pet owners wanting a sturdy, secure, and weather-resistant solution that can handle active large dogs and provide good insulation, though it may be more than needed for small or less active pets.

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.