The Little Giant Alta-One-Inch hinge locks and telescoping sides let you safely use the Alta-One as an adjustable extension ladder, A-frame ladder, staircase ladder, and as a trestle-and-plank scaffolding system. Wide-flared legs, rubberized feet, and high-quality construction give you unmatched stability in any of its configurations. Because it is constructed of aerospace-grade aluminum, the Alta-One is ultra-light and ultra-strong. The Alta-One is rated to hold up to 250 lbs. on both sides, so it’s perfect for medium-sized jobs. The Work Platform, included on this model, gives you a sturdy, large standing platform for improved balance and stability.