Trust your home to the industry-leader with century’s supreme aluminum series of folding attic stairways. With safety in every step, it is the most durable solution on the market that also boasts an aesthetically pleasing design. Engineered for residential use, it offers a hefty 350 lb. Load rating, a rough opening of 25-1/2 in. x 54 in., adjusts to ceiling heights between 7 ft. – 8 ft. 9 in., and utilizes landing space of 68 in., and a minimum clearance-projection space of 70 in. Includes energy efficiency bundle: factory-installed bulb weather stripping, foam weather stripping along the metal hinge for a tight four-sided air seal. Thermo shield, insulation for the door panel and fireguard, a fire retardant door panel. This bundle eliminates air flow and has been third-party certified to reduce heat loss by about 50%.