Keuka Studios provided a complete system of railings and staircases for this project. The interior and exterior railings are both crafted in our Chicago style. The railings are made at 42 inches for the exterior and 36 inches for the interior. The floating mono-stringer staircase was custom made of steel with wood treads. The exterior spiral staircase leads from the backyard patio to the driveway below. Keuka Studios Creates Complete Custom Railing and Stair Systems for Interior and Exterior applications.