Watson Stairs offers CAD drawing services. Below are wire-frame drawings of  double circular stairs. The left drawing shows an isometric view of the stairs with the framing of the room around them. The right drawing shows the stairs from a front slightly elevated view with the framing removed. These drawings can be rotated to view the stairs from different prospectives, when displayed to the customer in person. We can also turn off different layers (drawn as different colors) to show just the framing, the stair without the framing, just the treads, or many different combinations.  These drawings are time consuming and therefore expensive, but may be just what is needed to choose the perfect combination of stairs, handrail, and balustrade.