Our quality aircraft maintenance ladders are preferred by many in the aviation industry as well as commercial industrial environments. Available with a standard 20in x 20in head design. This A-frame style ladder is perfect for many rugged repair applications. Double riveted 3-3/4in non-skid steps in an aggressive perforated design for extreme environmental applications. Heavy duty 5in wheels provide easy mobility. Reinforced heavy duty gusseting on all steps provides maximum stability and strength. Heavy duty cast aluminum feet are standard but slip resistant rubber feet are available upon request. Available with optional rubber bumper. ANSI Type 1A 300 lb. Rating