Use this procedure to create a hole in an existing ceiling grid. The hole is created from a closed polyline or AEC object placed within the boundaries of the grid. Any parts of the grid inside the hole are not displayed.
- If it does not already exist within the boundaries of the grid, draw a closed polyline in the shape of the desired hole.
- Select the ceiling grid to which you want to add a hole.
- Click
. 
- Select a closed polyline or AEC object for the hole.
A hole is cut in the ceiling grid.
- Press Enter to end the command.
Adding a hole to a ceiling grid