In straightforward terms, a fire door is a structure that will restrict the spread of flames. In day-to-day operations, they’ll act like a typical door, but they’re composed of material that is heat resistant. Fire doors can be critical in passive fire protection, giving staff longer to escape a fire since the spread is restricted. Both internal and external options are available, and they should always be kept closed in case of emergency. A fire risk assessment will help you determine suitable placement for fire doors.