Take quality and dependability to an all-new level with Century's Supreme Aluminum Series of folding attic stairways. The safest, most durable solution available on the market it boasts a clean, aesthetic profile and impressive performance features. This ultra-durable residential stairway offers a sturdy 350-lb. load rating, a rough opening of 22-1/2 in. x 54 in., fits ceiling heights between 7 ft. 8 ft. 9 in., uses landing space of 68 in., and a minimum clearance-projection space of 70 in. This model has heavy-duty, rust-resistant aluminum stairs and stiles and is engineered with Century's tri-fold design for seamless pull-down function. The double-riveted construction delivers added stability, durability and strength. Reinforced bracing adds safety where it is needed most. The adjustable foot extension and the pivotal floor pad make this fully-assembled model ready for quick and easy installation. All Century attic stairways are independently certified to meet ANSI safety standards.