The information in this article applies to:
Whenever I create a 3D view of the interior of my structure I see a base molding. Why is this, and how do I get rid of the base molding in just one room?
The base molding in any room appears by default once you have a room.
If another object in the room initially selects, use the Next edit tool, or press the Tab key on your keyboard, to select the next object until the Status Bar indicates that you have the Room highlighted.