The FAST Global Solutions Spiral Box Stairs can be created to fit every customer’s safety department to ensure they meet appropriate specifications and tolerances. The company uses high-quality materials and components, along with rigorous testing to ensure its stairs are as safe as possible for flight crews. With OSHA- and CE-recommended safety features built into its stairs to minimize risk and liability, the main frames for the staircases feature tubular steel for optimal stability and capacities of 1,000 pounds (454 kilograms) or more, as required. Grip Strut steps and platforms provide slip protection, and the stairs also are equipped with towbar-actuated brakes. The staircases feature durable lead-edge rubber bumpers to protect aircraft from damage. The Spiral Box Stairs offer casters with a 10" diameter and 10-ply pneumatic tires. They feature a U.S. military-grade powdercoated finish. Spiral Box Stairs are available in fixed or adjustable height options. The fixed model features a height of 185" (4.7 meters) and the adjustable height provides a range of 171-195" (4.3 to 5 meters).