ErectaStep's Prefabricated Metal Stair; All aluminum stair and metal work platform components are in stock and ready to ship today; ErectaStep’s experience building metal stairs and metal work platforms goes back over 20 years. We’re leading the industry when it comes prefabricated metal stair kits as well as custom stair solutions that bolt together on location with no custom tools or equipment. Improve safety, Security Gates, Building Material ...