Fire rated door refers to the door that can meet the requirements of fire stability, integrity and thermal insulation in a certain period of time, together with the frame. Fire door is one of the measures for building fire prevention separation. They are usually used on fire walls, stairwell entrances or pipe wells, requiring smoke and fire isolation. Fire doors not only have the function of ordinary doors, but also have the function of preventing the spread of fire and smoke. They can prevent the spread of fire in a certain time and ensure the evacuation of people.

Fire rated for use on single doors the Marathon Fire Door Kit is a system developed as part of a half hour sliding fire door assembly to BS 476: Part 22: 1987, and should be installed on the non-fire risk side of an aperture.

UL is an acronym for D&D hardware which is an independent product safety certification organizations. UL develops standards by which they test fire rated door hardware to verify that it meets certain safety requirements during use, or in the event of a fire or other circumstances.

Fire Rated Double Door Hardware is suitable for Auditorium Exits Double Door, Escape Gallery Double Door, Gallery Double Door, Lift Lobby, Stairwell Emergency Exit Double Door, Stairwell Emergency Exit Double Door, etc.

A fire can be devastating to company property, but it doesn't have to be if you take into account fire-rated wood doors. With the right products, a fire can be controlled to minimize damage and provide safety to employees and customers.

Steel fire doors are "rated" by time (in minutes or hours) that a door can withstand exposure to fire test conditions. Hourly ratings include 1-1/2-hours, 1-hour, 3/4-hour, and 1/3-hour, with the maximum rating required of any swinging type fire door being three hours.