Troubleshooting Room Selection Issues

Reference Number: KB-02970
Last Modified: June 7, 2016

The information in this article applies to:

Chief Architect Premier or Chief Architect Interiors


I am having trouble selecting a room in my plan. What might be the cause, and how do I fix the issue?


There are several reasons why you may experience trouble with selecting a room in your plan, including:

  • A gap between walls.
  • One or more walls or railings are marked as "No Room Definition."
  • One or more incorrect wall connections.
  • The "Rooms" layer may locked.

In Chief Architect, room definition is established when a room is completely enclosed by walls, so the most common reason for being unable to select a room is if you have left a gap between walls, such as perhaps for an opening or doorway. To be recognized as a room by the Chief Architect software, a room must have an unbroken perimeter, then the floor and ceiling will be generated.

To correct a gap between walls

  1. A room in Chief Architect is a totally enclosed area defined by any combination of joined Walls, Railings, Half Walls, or Room Dividers (also known as invisible walls), and all of these tools can all be accessed under the Build menu.

  2. Depending on what you want to achieve, you may want to enclose a space with Walls first, and then use the Doorway  tool to create gaps in the walls.

Individual walls and railings can be marked as "No Room Definition" on the General panel of their Wall Specification dialog.  Some walls, such as automatically generated Attic walls which are typically created above Full Gable Wall, will have "No Room Definition" selected by default, and cannot be used to create room definition until this checkbox is unselected.

To check for "No Room Definition" walls/railings

  1. Open the Wall Specification dialog for every wall around the room that will not select.

  2. On the General panel, if any walls have "No Room Definition" checked, remove the checkmark and click OK.

    Note: If you want to be able to dimension to automatically generated Attic Walls, also uncheck "No Locate" before clicking OK.

  3. If the Room still will not select, continue around the room's entire perimeter until you have verified that all of the walls are not set as "No Room Definition."

If you do not think you have left a gap in between the walls, and you have checked every wall and made sure that they do not have "No Room Definition" selected, then you may have a bad wall connection. Often if this is the root cause, the entire Exterior Room will highlight, you may have a broken wall icon following your mouse cursor, and you may see a light grey filled-in circle around the problem wall connection, as shown in the image below.

Alternately, you may notice wall connections that look incorrect without a circle, particularly if three or more walls, or a curved wall is connected oddly, where visually the walls just do not look joined together as expected in floor plan view.

To fix bad wall connections

  1. First, select Edit> Preferences , then select the Architectural panel to make sure the Circle Unconnected Wall Ends setting is checked. If it is not, check it then click OK.

  2. If you see any wall connections circled, or that simply look incorrect in your 2D floor plan view, zoom in on these, select one of the walls, and use the edit handle to drag the wall back, then reconnect the segment to the other wall.

  3. Once all of the wall connections are corrected, you should be able to successfully select the room.

If you have not left any gaps, visually do not see any incorrect wall connects, and cannot select any rooms at all in your plan, then it is likely that you have locked the Rooms layer in your currently active layer set.

To unlock the Rooms layer

  1. Select Tools> Layer Settings> Display Options .

  2. Scroll down to the Rooms layer and click in the Lock field to remove the padlock icon from this field.

  3. Repeat this process for any other layer sets in which you have been unable to select rooms, then click OK to apply the changes.

If you are still unable to resolve the issue following these steps, please submit the plan file to our Technical Support team using the online Support Center, as discussed in the Related Articles section below.