Hale Door Mounted Pet DoorAdd a Hale Pet Door to your people door. This is one of the best selling dog doors and is one of the easiest to install yourself. The Door Pet Door fits perfectly in wood doors, metal doors, hollow core doors, raised panel doors, and even French doors. Quality, energy efficiency, safety, and security are priorities with Hale Pet Door. All of the door dog doors are rated highest in insulating and sealing, ensuring protection against wind, dust, and