To change the ceiling height, move the mouse cursor inside the room and right-click.
From the context menu, select the command Ceiling -> Height (see image below). At this point, a window appears showing the current height of the room, which you can then modify.
When the walls of the room have been tiled, the tiling is neither modified nor removed.
With DomuS3D version 2026 R2, if you are working on a multi-room layout, the programme will ask if you want to apply the change to all rooms in the floor plan.
This article is valid for version 2026 and later