The stairs in this home in Golden, CO are a large radius curved staircase. That means that every stair curves and the stair lift rail has to be curved along every inch. This does take extra work, but the end result perfectly matches the wall and looks like a piece of custom trim along the stairs. The lift will ride just a smooth in this configuration, but the lift does take a few week longer to create due to the custom nature of this curved stairlift.