To Convert a Line to Duct

1. Define the path of a segment with the AutoCAD Line command. For more information, see .
2. On the command line, enter DUCTCONVERT.
3. Select the line to convert, and press Enter.
4. Do one of the following:
   • Press Enter or enter n (no) to leave the layout geometry in the drawing.
   • Enter y (yes) to erase the layout geometry from the drawing.
5. Modify the duct properties in the Modify Run dialog.