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 Pet Door: Purpose, Features, History, Electronic Pet Doors, Patio Door Pet Flaps, Dog Stiles, Pet Gates
Famous quotes containing the words pet and/or door:
“Just see how it glints and sparkles. Of course it is a nucleus and focus of crime. Every good stone is. They are the devil’s pet baits. In larger and older jewels every facet may stand for a bloody deed....”
—Sir Arthur Conan Doyle (1859–1930)
“And we passed to the end of a vista,
But were stopped by the door of a tomb—
By the door of a legended tomb;
And I said—” What is written, sweet sister,
On the door of this legended tomb?”
She replied—”Ulalume—Ulalume!—
‘Tis the vault of thy lost Ulalume!””
—Edgar Allan Poe (1809–1849)