Crown Heritage stairs are designed to your specifications and completely assembled at the factory with a custom-formed handrail, then "knocked down" (KD) for easy re-asebmly at the job site. Stair models are available with a variety of handrail materials, by slecting the alternate stair balusters, panels, or handrails. Please inquire. Back by a solid warrenty, each custom spiral stair is an example of exper engineering and meticulous metal craftsmanship. Made in the U.S.A.