A pet door or pet flap (also referred to in more specific terms, such as cat flap or dog door a.k.a. doggie door) is a small portal in a wall, window or human door to allow pets to enter and exit a house (or other structure) on their own without needing a person to open the door. Originally simple holes, the modern form is a hinged and often spring-loaded panel or flexible flap, and some are electronically controlled. They offer a degree of protection against wind, rain, and larger-bodied intruders entering the dwelling. Similar hatches can let dogs through fences at stiles. A related concept is the pet gate, which is easy for humans to open but acts as a secure pet barrier.
Read more about Dog Door: Purpose, Features, History, Electronic Pet Doors, Patio Door Pet Flaps, Dog Stiles, Pet Gates
Famous quotes containing the words dog and/or door:
“All you’ve got is the word of a fool dog. It’s been my experience that a bloodhound is the foolishest dog that is. I don’t remember of anybody ever keeping a bloodhound for a yard dog. They’re such dad blasted fools.”
—Laurence Stallings (1894–1968)
“It’s true, as Marya Mannes says: “No one believes [a woman’s] time to be sacred. A man at his desk in a room with a closed door is a man at work. A woman at a desk in any room is available.””
—Lillian Breslow Rubin (20th century)