Specify the Span Direction of a Structural Floor

Use the floor span direction symbol to change the orientation of the steel deck.

1. Select the structural floor.
2. Click Modify | Floors tab Mode panel (Edit Boundary).
3. Click Modify | Floors > Edit Boundary tab Draw panel (Span Direction).
4. Select from one of the following tools on the Draw panel of the ribbon:

   If you select...	then...
   (Line)	sketch a line, or pick a model line, to define metal deck span direction that is independent of the sketched boundary lines. This line has no other function than to define the direction of the flutes in a metal deck and therefore cannot be used to close a loop.
   (Pick Lines)	select the sketch boundary line to which you want all metal deck flutes to be parallel.

5. On the ribbon, click (Finish Edit Mode).

Optionally, you can also use the span direction symbol to align to geometry in the view.

6. Select the span direction component.
7. Click Modify | Span Direction Symbol tabAlign Symbol panel (Align Perpendicular).
8. Select a structural floor, beam, or grid line to which the span direction will be perpendicular.

   The deck aligns to the selected element.