A room says "not enclosed"

A room between walls stores its point, number, name, usage and whether it counts as Regelfall or Sonderfall, but no outline: its outline and area always come from the walls around it. "not enclosed" means those walls don't close: there is a gap somewhere, so there is no area to give.

How it happens

1. The Room tool places a room only where the walls close around the point, and only one per space: it refuses anything else at once.
2. So "not enclosed" and "second room here" appear later, when a wall is moved, shortened or deleted. A room keeps its point, and the walls around it no longer close, or two spaces have become one.

Finding the gap

1. Zoom in on the room's corners. Walls join only where their ends meet, or where one ends inside another; two ends that stop a few millimetres apart leave a gap you can hardly see.
2. Select the wall with the gap and drag its end grip onto the other wall. With object snap on (F3), the end catches the corner.
3. The room's area appears as soon as the walls close. Doors and windows don't open a room: it runs along the wall faces past them.

Also good to know

• "second room here": two rooms now lie in one space, for instance after a wall between them was deleted. Only one room per space gets the area; delete the other, or put the wall back.
• An enclosed space without a room counts as KGF until a room is placed in it, and Areas in the side panel says the schedule is incomplete.
• Walls on hidden layers count too, so hiding a layer never changes an area.