The Series 1000 Ladders by Cotterman feature a 59° climbing angle and are available in 18 inch, 26 inch, or 32 inch sizes. Options also include 1 to 5 steps or 6 to 16 steps depending on the model and your specific rolling steel ladder needs. Whether you need rugged, self-cleaning steps for outdoor use or indoor office use, there is a step for you. National Ladder & Scaffold Co. offers Rubber Tread, Perfoma Perforated, and Grip Strut steps to meet your ladder needs. The 1000 Series also meets or exceeds OSHA 1910.29 and ANSI A14.7 standards. For more information regarding the Cotterman Series 1000 Ladders, please visit us online at or call us toll-free at 1-888-725-5995.