RediStair® is the VE alternative precast concrete stair system that brings the value of a concrete stair to a building owner at a cost competitive with steel stair systems. The advantages of concrete stairs over steel are many; they are more durable, quiet, and architecturally appealing than steel or steel frame with concrete tread systems. RediStair® is a proprietary process that integrates precast concrete stair stringers and site-cast main and intermediate landings to form a “cantilevered truss” that has an unsupported mid-landing. It can be used inside cores, adjacent to cores, mid-slab, projecting off the building, as well as with steel frame construction. Designed to simplify the construction process, RediStair® allows installation of the stair system as the building rises, reducing or eliminating the need for temporary stairs. Having the permanent stair system in place significantly improves jobsite safety and efficiency without the redundancy and cost of temporary stair requirements.