1. Go to Theme Options > Header > select 14 (or 13) type of header
2. Import Essential Grid as described in our documentation http://www.8theme.com/demo/docs/royal/index.html#!/essential_grid
3. Go to Pages > Add new. Use visual Composer and add Essential Grid element. Select Agency One. All Page Layout settings (Sidebar, footer, heading) should be disabled. Save page and set it as Front page in Settings > Reading.