PURPOSE: To provide a door by which an escape port can be secured when the door cannot be opened by deformation of a building by a fire of an earthquake or the like.

CONSTITUTION: An opening part for an escape is arranged in a door 1, and a cover 6 openable at disaster time is fitted in the opening part. A strong inside frame 5 is arranged on the inside edge of the opening part, and deformation of the door 1 is prevented from exterting influence on the cover 6, and the inside frame 5 is fixed to the door 1 through a deformation absorbing body 9, and deformation of the inside frame 5 caused by deformation of the door 1 is restrained.