foundation-genesis-layouts.scss

// Change the column widths to match your site
@media #{$large-up} {

	.content-sidebar .content-sidebar-wrap {
		main {
			@include grid-column(9);
		}
		aside.sidebar-primary {
			@include grid-column(3);
		}
	}

	.sidebar-content .content-sidebar-wrap {
		main {
			@include grid-column($columns:9, $push:3);
		}
		aside.sidebar-primary {
			@include grid-column($columns:3, $pull:9);

		}
	}
}