Little Giant Ladder Systems 10403 22-Feet Super Duty M22 375-Pound Duty Rating, Aluminum Invest in quality and complete versatility with an adjustable A-frame, staircase, and 90-Degree ladder in one compact, easy-to-use package Use a true professional's ladder that is built to stand a heavy-duty payload and is backed by a lifetime warranty The industrial strength, special-duty Little Giant Super Duty exceeds all OSHA and ANSI standards and is rated to hold up to 375-Pound