Both commercial buildings and residential homes contain codes regarding the paths of egress.
Commercial door code requirements.
The building codes enforced in your area mandate the fire resistance rating of the fire door.
Commercial fire door requirements.
What is building egress code.
Doors to individual hotel or motel units shall operate similarly except that when the bolt and unlatching operation is key operated from corridor or exterior side of the unit door large bow keys 2 inch full bow or 1 1 4 inch half bow shall be provided in lieu of lever type hardware on the corridor side.
Code requirements for exterior doors are covered in chapter 10 of the ibc.
Fire rated doors are considered an important part of a passive fire protection system and along with being a smart safety feature they are also required by local state national and international building codes.
Any door that is along the path of exit the egress path is considered an egress door.
That is if someone needs to go through that door to exit the building then.
This chapter provides guidelines on door height and width based on the function of the structure.
Minimum number at least 60 of public entrances must be accessible in new construction in addition to entrances directly serving tenancies parking facilities pedestrian tunnels and elevated walkways.
Section r311 2 states the width of the clear opening of the required egress door must be at least 32 inches from the face of the door to the door stop at the jamb or the opening and the height of the opening must be a minimum of 78 inches from the door stop at the head of the opening to the top of the threshold.