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Commercial fire rated doors with 120-minute (2-hour) rating are specifically built to withstand exposure to fire for up to 120 minutes, making them essential in protecting critical areas in commercial buildings. These doors are commonly required by building codes in stairwells, emergency exits, corridors, high-occupancy areas, and industrial sites.<br><br>Key features of commercial 120-minute fire rated doors:<br><br>Materials: Available in both steel (galvanized iron with rockwool or mineral wool infill) and timber (engineered, fire-tested hardwood, or fully insulated wood).<br><br>
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