v10, the raft slab gap is defined as in 7 and 8. There is no difference logically. If you had entered the same project in 7 or 8, you would probably ask the same question. In your project: 1. Columns in the air According to the data entry you entered, you should give your columns -0.90 elevation 2. First define the raft space and the raft edge, then enter the column S03. The problem you mentioned will not occur. Sample data entry: Plan view of the improved project: 3. The raft tile you defined in the raft space remains in the air. You should adjust the element elevations.For such gaps(elevator shafts), I suggest you to review the following links:
[ url]http://www.idecadsupport.com/forum/viewtopic.php?f=5&t=4426&p=20094&hilit=asans%C3%B6r&sid=60698590c1e1fcf54802a63d4bbff15f#p20094[/url]
Good work