Industrial Heavy-Duty Fibreglass Extension Ladders(6900 Series) CSA grade 1A , ANSI type 1A, 300-lb. load rating• Durable non-conductive fiberglass side rails in high visibility safety yellow • Rung through rail design • Slip-resistant serrated "D" rungs for safe climbing and comfort • Black ABS, high impact non-marring end caps• Large heavy duty pivot feet with slip-resistant rubber pads and ice pickBase Section Outside Width": 17 1/8Base Section Inside Width": 14 3/4Available from 16 to 32 feet in heightManufactured by:  Featherlite Industrial Ladders