Our original Tornado Resistant Steel Doors and Frames were developed to meet the ICC 500 standard and the FEMA 316 standard and have been used in commercial storm shelters throughout the United States. After years of the specialized commercial door industry only offering steel door solutions for storm shelters, AMBICO began designing a Tornado Resistant Wood Door and Steel Frame solution to offer architects an alternative to steel. Manufactured in compliance with ICC 500, our Tornado Resistant Wood Doors and Steel Frames are tested to include multipoint hardware and are available in virtually every species, cut, and grade. They can be custom stain matched or clear coat finished while the hardwood stiles are coordinated to match face veneers. Our Tornado Resistant Wood Doors and Steel frames are supplied as they are tested with hardware and at the largest size so anything smaller is guaranteed compliant.