Cardinal CSY0CSPXXXDY6XR 20' Poured Step/Sundeck with Liner Track - Entry steps, benches, sundecks, and lounges add dimension and personality to any pool design. Cardinal offers over 150 standard step and bench models, available in any height and shape. This Cardinal Step/Sundeck is unmatched for performance, function, and elegance. It includes a liner track made from heavy-duty, aluminum extrusion that is electrostatically coated.