Your medium-sized dog deserves the freedom to step outside for a quick potty break or a burst of playtime without waiting for you to open the door. A wall entry pet door solves that problem beautifully, especially when you cannot cut into your main entry door. In this guide, we review the top options for medium pets up to 40 pounds, focusing on the PetSafe Wall Entry Pet Door and the Baboni Pet Door for Wall. Whether you prioritize energy efficiency, durability, or ease of installation, we have you covered. For more insights, check out our PetSafe wall entry pet door review.

Buying Guide

Installation Ease and Wall Compatibility

Installing a wall entry pet door can be a weekend DIY project, but the level of difficulty varies by product. Look for models that include a cutting template and step-by-step instructions. The telescoping tunnel design is a game-changer because it adjusts to wall thicknesses from 4 3/4 to 7 1/4 inches. This means you can fit it in standard interior and exterior walls without custom modifications. For a deeper dive into installation tips, read our PetSafe Wall Entry Aluminum Pet Door Review.

Energy Efficiency and Weatherproofing

A wall pet door that leaks drafts defeats its purpose. The best models use double flaps or insulated flaps to keep your home comfortable year-round. Look for features like magnetic closures and weather-resistant materials that block wind, rain, and extreme temperatures. The PetSafe Wall Entry Pet Door uses a double-flap system with a slide-in closing panel for extra insulation when your pet is indoors. This is especially important if you live in a region with harsh winters or hot summers.

Durability and Material Quality

Your pet door will face daily use, weather exposure, and maybe even a few enthusiastic scratches. Choose a frame that resists rust, UV damage, and warping. Plastic frames are lightweight and insulate well, while steel frames offer extra strength. The Baboni Pet Door for Wall uses a steel frame with aluminum alloy oxidation for durability and thermal insulation. Meanwhile, the PetSafe plastic frame is UV-resistant and won’t rust. Both options are built to last, but your choice may depend on your climate and pet’s activity level. For more on durable options, see our PetSafe plastic door review.

Size and Pet Weight Capacity

Getting the right size is crucial for your pet’s comfort and safety. Measure your dog’s height and width at the shoulders, then compare with the flap opening dimensions. For medium pets up to 40 pounds, a flap opening around 8 1/4 inches wide by 12 1/4 inches high works well. Both the PetSafe Wall Entry Pet Door and the Baboni Pet Door for Wall offer this size. If you have a smaller pet, consider the PetSafe Wall Entry Pet Door for pets up to 15 pounds. For larger dogs, the large version supports up to 100 pounds.

Final Thoughts

After evaluating the key features, we recommend the PetSafe Wall Entry Pet Door, Telescoping for its excellent insulation, DIY-friendly telescoping tunnel, and trusted brand reputation, making it ideal for pet owners who want a reliable, energy-efficient solution. If you prefer a steel frame for added durability and a sleek look, the Baboni Pet Door for Wall is a strong contender with its double-flap design and easy installation. Both options give your medium-sized dog the freedom they deserve while keeping your home comfortable and secure.

Frequently Asked Questions

Can I install a wall entry pet door myself?

Yes, most wall entry pet doors are designed for DIY installation. They include a cutting template, step-by-step instructions, and all necessary hardware. If you are comfortable using a saw and drill, you can complete the project in a few hours. For more guidance, check out our Smart Pet Doors category page.

How do I measure my pet for a wall entry door?

Measure your pet’s height from the floor to the top of their shoulders (withers) and their width at the widest point of their chest. Add a few inches to both measurements for comfort. For medium pets up to 40 pounds, a flap opening of 8 1/4 by 12 1/4 inches is usually sufficient.

Will a wall entry pet door affect my home’s energy efficiency?

High-quality wall entry pet doors use double flaps, magnetic seals, and insulated materials to minimize drafts. The PetSafe Wall Entry Pet Door, for example, includes a slide-in closing panel for added insulation when not in use. Proper installation also helps maintain energy efficiency.

What is the best wall entry pet door for medium dogs in 2026?

For most medium dogs, the PetSafe Wall Entry Pet Door offers the best balance of insulation, ease of installation, and durability. If you prefer a steel frame, the Baboni Pet Door for Wall is an excellent alternative. Both are top-rated choices for 2026. For more options, see our PetSafe Sliding Glass Pet Door Medium Review.