Pet door
Encyclopedia
A pet door is a hinged flap set into a vertical surface to allow cats to enter and exit a location without needing a human aid.

Pet door may refer to:
  • Cat flap
    Cat flap
    A cat flap or cat door is a hinged flap set into a door, wall or window to allow cats to enter and exit a house on their own without needing a human to open the door, while offering a degree of protection against wind and rain entering the dwelling...

  • Dog door
    Dog door
    A dog door is a hinged or spring operated door rather than the more commonly known 'flap' set into a door, wall or window to allow dogs to enter and exit a house on their own without needing a person to open the door. Flaps are hung from the top of the opening and do exactly that - flap. Dog doors...

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