National Ladder & Scaffold drop ship Cotterman Fixed Steel Ladders and Accessories across the country. Our fixed steel ladders are available with and without walk-thru handrails and safety cages. National Ladder & Scaffold has Cotterman Fixed Steel Ladders available in a wide variety of sizes, ideal for any type of job, big or small. Our Cotterman Fixed Ladders meet or exceed ANSI A14.3, OSHA 1910.27 and 1926.1053 standards. Contact our expert staff for questions, concerns or ladder recommendations.