The FireKingЁ Model 630Кfire-rated rolling service door offers superior protection wherever a listed fire door is required for a larger size door opening (max. width 41Х2УХ; max. height 25Х4У).The 630 Model rolling steel fire door is designed for masonry mounted applications including: facilities with paint booths, file rooms, material storage locations, warehouses, shared walls between businesses, public record storage and public buildings such as libraries. Customized fire doors are available for conveyor openings.