Fire-rated doors for residential, industrial and commercial applications. Frame material GI sheets of 1.5mm – 2mm thk. Single and double leaf doors are offered. The core material (i.e., infill) is honeycomb or rock wool. Shutters are also made with GI of std. Tested thickness, which is generally 1.2mm. Vision panels are also provided. Fire rating ranges from 20 minutes to 180/240 minutes. Customized sizes available subject to some width and length limitations and qty. A fire door or a fire rated door (tested for a specific duration of fire resistance) are doors which are made up of Fire Resistant materials. These fire safety doors are able to withstand smoke and fire for a certain period for which they were tested. These doors are used as a part of a passive fire protection system in buildings to decrease the spread of fire and smoke between two rooms to enable people to move out safely. Some people prefer these fire doors installed in their kitchens. A few sizes are standard, But some custom-sized doors are also offered.