Werner; Extension Ladder; Series D1100-2, Flat D-rung, Type Iii, Duty Rating; Ladder Height: 16 Ft; Rung Size: 1-1/2 In; Base Size: 16 In Outside Rails; Material: Aluminum; Load Capacity: 200 Lb; Rail: 2-3/4 In Wide; Flange: 15/16 In Wide;maximum Working Length: 13 Ft; Approx. Cu. Ft. Per Unit: 4.900