One element retains its geometry while the geometry of the elements sharing the join is cut to create the single mass. Structural floors and walls possess dominant geometry characteristics and always maintain their geometry when sharing a join with other elements. Because of this, they will not automatically join with one another. Other concrete elements take precedence as follows.
| Element | Element | Dominant Element |
|---|---|---|
| Beam | Beam | In order of creation |
| Beam | Column | Column |
| Isolated Foundation | Isolated Foundation | In order of creation |
| Isolated Foundation | Wall Foundation | Isolated Foundation |
These joining rules cannot be changed and it is not possible to disable the automatic joining of geometry. However, the joins can be manually un-joined.