I think it would be funny to see this huge Mastiff disappearing through the wall because people from the street wont be able to see the doggie door.
Dog Requiring Low Step Over | Let's say your dog is 15" tall, and needs a pet door at least 8" wide to comfortably pass through. Your dog also suffers from arthritis, so he needs the step over to be as low as possible. You will be installing the pet door through a wall, so you can build a ramp to make the step over just 1". Your pet door flap size needs to be at least 16" tall, and 8" wide. Hale has the perfect pet door with a flap size of 8.5" x 16"!
Hale Pet Doors can be installed through virtually any wall type. This picture shows a typical house with siding with the wall dog door frame chosen to blend colors nicely.
Endura Flap Double Flap Doggie Door for Walls ..
Pet Doors | Door Entry & Wall Entry Dog Doors - PetSafe
Installing your dog door in the wall uses a tunnel (through the wall) and two flaps, one outside and one inside. Wall installations are the most energy efficient configuration due to the air space between flaps, especially with an extra large dog door. With more than 10 years in the construction business, Doggie Door Door Company offers professional installation of all pet doors sold. We can install your pet doors in doors, though walls, in French doors, in sliding glass doors and/or through windows and screens. Wall installations can be done through standard frame with stucco, brick and adobe. Get a pet door installed and make you and your pets happier. High quality pet doors are energy efficient, safe and durable. Rather than opening your “people” door many times a day, a doggie door will allow your dog to go outside as many times as he needs to – whether you're home or not.You can have your pet door installed in any area of your home or garage. Through walls, through doors, in windows and sliding glass patio doors are some of the pet door installations that I've done. You may even want a pet door installed between interior rooms of your home to allow your pet free access to the basement, bedroom or bathroom – anywhere to make life easier for you and your pets.You choose the most convenient place in your home for your pet door, and I’ll install it for you.A door doggie door can be very convenient—especially if you want your dog to use your entrance. Most of the time, there are no special arrangements—such as a ramp or steps—necessary because it’s easy to walk through the door. Door dog doors can be installed in all types of doors:The wall doggy door is the most energy efficient dog door because of the air space between the double flaps that hang on each side of the wall. No matter the type of wall you have: frame with stucco, brick, block or concrete—you can have a wall pet door installed. If there are electrical, phone or bug lines in the wall, I’ll reroute them for you.If you like to enjoy fresh air when the weather is nice, your dog would love a screen dog door. You can relax while your pets go out to the yard and back.