The rugged beauty of natural stone with the safety and comfort of a uniform rise. Perfect for free-flowing, natural staircases, the Irregular Step collection gives you the the rugged attractiveness of natural stone but combines it with the safety and comfort of uniform rise. Here at Castohn, we celebrate innovation and success, specializing in manufacturing high-quality cast architectural elements to produce unique outdoor living experiences. We are a company made up of knowledgeable and talented people with a wide range of experiences. We believe that people want to grow and learn. We believe that mentorship is key for developing a "learning organization."