Louisville Ladder L-2094-17 Type IA 300-Pound Rated Aluminum Multipurpose Ladder, 17-Foot 4 ladders in one, step, extension, stairway and plank support Type IA, 300 lbs duty rating Convenient storage and transportation 17 Feet The ladder meets or exceeds the safety standards set by ANSI, American National Standards Institute and OSHA, Occupational Safety and Health Administration