1910 36 d 3 an exit route door may be locked from the inside only in mental penal or correctional facilities and then only if supervisory personnel are continuously on duty and the employer has a plan to.
Emergency exit door height.
For more detail on exit routes and related standards see exit routes emergency action plans and fire prevention plans in title 29 of the code of federal regulations cfr 1910 33 39.
Exit discharge means the part of the exit route that leads directly outside or to a street walkway refuge area public way or open space with access to the outside.
Outdoor exit routes are permitted but must meet the minimum height and width requirement for indoor exit routes and must have guardrails to protect unenclosed sides if a fall hazard exists.
Objects that project into the exit must not reduce its width.
If there is a fire in the area where occupants are they are already being exposed to smoke fire and heat.
The exit and exit discharge must be at least equal to the width of the exit access.
A path of travel door is a door in the egress pathway leading to or between a fire door or exit door.
A steel fire resistant door frame is also used.
An exit door is a door that allows an emergency exit from a building.
Path of travel door.
Dependant on its location it need not necessarily be fire rated or steel framed.
The nfpa emergency exit door requirements code states there is a maximum travel distance allowed to find an exit.