Click the Whole Floor button. The Deck Assignment Mode dialog box will disappear, the new deck assignment will be shown as a solid color, and the RAM Modeler will enter Deck Assignment Add Layout Mode.

New grid lines are created 5 feet beyond the outermost model entities on each side, and a rectangular deck polygon is created using these grid lines. If subsequent modeling changes extend the floor framing beyond these grid lines, it will be necessary to assign deck to these new areas.

The Whole Floor command does not delete any previously defined deck polygons. It "covers" them up with a new polygon which takes precedence. Unwanted deck polygons should first be deleted, not just "covered up", so that processing speed during analysis is not adversely impacted.