Using Open Below Rooms to Define an Opening to a Lower Floor

Reference Number: KB-00210
Last Modified: July 16, 2015

The information in this article applies to:

Home Designer Professional or Home Designer Architectural or Home Designer Suite or Home Designer Interiors or Home Designer Essentials


I want to create an opening or a hole to a lower floor, such as in a loft, balcony or mezzanine from my current floor but I cannot seem to make it work. How do I accomplish this task?


Creating a loft can be accomplished in Home Designer by utilizing a specialized room type called Open Below.

To create an area within a room that opens to a room below

  1. Define the area you wish to open to the floor below by using any combination of the various wall types.
    • If you don't want any actual walls or railings, use a Room Divider , or an invisible wall in Home Designer 2014 and earlier versions.

  2. Using the Select Objects tool, select the room, then click on the Open Object edit button to display the Room Specification dialog.

  3. On the General panel select Open Below from the Room Type drop down menu.

  4. Click on the OK button.

  5. You should now be able to view an open area in a 3D view.

    Note: In Home Designer version 10 and prior versions, if the area you defined is not connected to any other walls, you will need to draw an invisible wall to connect the area to another wall. Home Designer 2012 and newer programs will automatically create the invisible wall for you.