There are 76 collapsible widget positions. If no widget is published to a position, it will not appear, collapsing the entire area.
Control all widget positions with Gantry, in terms of widths within the position row, and left/right/middle placement for the mainbody/sidebar area.
[readon url=”http://gantry-framework.org/documentation/wordpress/configure/layouts”]Gantry Framework : Layouts Documentation[/readon]
The below diagram is of the Widget Variations page.