AFV Software just released 3D Helical Stair. This AutoCAD add-on allows you to build circular stairs in AutoCAD, including fancy handrails and tread finishes.
3D Helical Stair features an easy to use Dialog that will allow you to draw hundreds of different circular stair combinations all in 3D .
Supports both metric and imperial units. Runs in AutoCAD 2000 / ADT thru AutoCAD 2007. A tutorial download is available.
... read more about »Build 3D Circular Stairs
