[header] How to choose and install a doggie door [title] Consider door mounts. [step] Door mounts are doggie doors that are installed onto doors in your home. These can be placed on exterior doors to allow your dog to easily travel inside or outside. 
They can also by placed on internal doors, to allow your dog to access certain rooms in your home. Door mounts can be added to wooden, aluminum, or screen doors and typically consist of a swinging flap door.