Lightweight, versatile Little Giant Alta-One articulating ladder provides quality performance for years to come. The Triple-Locking Hinge and telescoping sides let you safely use the Alta-One as an adjustable extension ladder, A-frame ladder, staircase ladder, and as trestle-and-plank scaffolding system. (Additional items needed for Trestle/Scaffolding system: refer to Model No. 10813 - available Drop Ship) Wide-flared legs, rubberized feet, and high-quality construction give you unmatched stability in any of its dozens unique 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 Lb. on both sides, so it is perfect for medium-sized jobs. Complies with all applicable OSHA, ANSI A14.2 standards. No. 14013-001: Maxium Reach: 17 Ft., Material: Aluminum, Load Capacity: 250 Lb., Duty Rating: Type I, Base Spread: 64 In., Extension Ladder Min. & Max. Height: Extends 9 Ft. To 15 Ft., Step Ladder Min. & Max. Height: 4 Ft. To 7 Ft., Scaffold Dimension: 4 Ft., Number of Steps: 14, Rung/Step Depth: 1 In., Step Rise: 12 In., Storage Height: 4 Ft. 7 In., Ladder Weight: 29 Lb., Warranty: Limited Lifetime Warranty, Pkg Qty: 1, Package Type: Box No. 14016-001: Maxium Reach: 22 Ft., Material: Aluminum, Load Capacity: 250 Lb., Duty Rating: Type I, Base Spread: 77 In., Extension Ladder Min. & Max. Height: Extends 11 Ft. To 19 Ft., Step Ladder Min. & Max. Height: 5 Ft. To 9 Ft., Scaffold Dimension: 5 Ft., Number of Steps: 18, Rung/Step Depth: 1 In., Step Rise: 12 In., Storage Height: 5 Ft. 7 In., Ladder Weight: 37 Lb., Warranty: Limited Lifetime Warranty, Pkg Qty: 1, Package Type: Box