Every fire door should have a Fire door keep shut sign fitted. Where doors can be used from either side a fire door sign is required on both sides. Doors which open on to a fire escape corridor, should be locked shut and signed accordingly.

When installing outside, place on wall either to the opposite side to the door's hinges or above the door. All the signs in this section conform to the Health & Safety Signs and Signals Regulations - BS 5499-1.