Little Giant Alta One 22 Foot Ladder with Work Platform (250-lb. Weight Rating, Type 1 14016-104) Aircraft-grade aluminum, wide-flared legs, and high-quality construction provide solid stability Can be used in up to 33 configurations, including A-frame, extension, 90-degree ladders, and three different scaffolding positions Highest standing level extension: 7' 10" to 15' 6"; highest standing level stepladder: 2' 10" to 6' 7" Exceeds all OSHA and ANSI standards Rated to hold up to 250 lbs.