Driveway Base Rock Carried in Bulk Click on the image below to enlarge it. CA-06 Coverage: 125 sf @ 2″ deep Recycled CA-06 Coverage: 125 sf @ 2″ deep Crushed Asphalt Millings Coverage: 100 sf @ 2″ deep 3/4″ Gray Slag Coverage: 125 sf @ 2″ deep 3/8″ White Rock Chips Coverage: 100 sf @ 2″ deep 1″ Clean White Rock Coverage: 100 sf @ 2″ deep 1 1/2″ Clean White Rock Coverage: 100 sf @ 2″ deep