3D Helical Stair is a plugin for AutoCAD that builds circular stairs. The AutoCAD add-in is an easy to use Autolisp (FAS) application that has a dialog interface allowing you to draw stairs quickly! Our Helical Stair add-on for AutoCAD will draw hundreds of different 3D stair models all within AutoCAD.

Build a complete circular stair in AutoCAD, including fancy handrails and tread finishes. 3D Helical Stair is available for metric and imperial units.

This dialog box driven, Fast Load Autolisp (FAS) application, lets you build a complete 3D helical stair in seconds, including fancy handrails and tread finishes. Built for AutoCAD 2000 / ADT thru AutoCAD 2010.

• Helpful dialog box.
• 5 design parameters.
• Each stair element has its unique layer.
• Metric (m, cm and mm) and Imperial units.
• Final model suitable for rendering.
• Imperial and Metric Graphical Tutorials.
• AutoCAD 2000 thru 2010 and ADT compatible.
• Supports non-English versions of AutoCAD.