Dover & Company offers a wide array of rolling steel doors to meet the most demanding fire safety standards, unusual opening sizes and discerning aesthetic requirements. Designed to close automatically in the event of a fire or alarmed event, our fire-rated doors are available for service door and counter applications in commercial, industrial, institutional and retail projects. Dover & Company provides fire doors with UL or FM labels and are listed for both masonry and non-masonry applications. Our FireKing® fire door collection offers fire protection, innovative design and optimized performance for the end user. The Fire Sentinel® time-delay release device provides an added measure of safety to control the doors’ closure.