Slab Fire Rated Doors are flat, unfinished door panels specifically engineered to resist fire for a designated period, typically 20, 45, 60, or 90 minutes. Unlike prehung doors, slab fire rated doors come without a frame, hinges, or hardware, offering greater flexibility for custom installations and retrofits. These doors are constructed using fire-resistant materials such as mineral core, steel reinforcements, or solid wood cores, and are tested and certified according to recognized fire safety standards.