Natural Base – Dale's Landscaping
21A Crushed Concrete. 21A Crushed Concrete is most commonly used as a paver base rock. This rock is easily compactable and can also be used as a driveway stone. Coverage per yard 2": 100 Sq Ft. Bag Size: ½ Cu. Ft. Coverage Per Bag 2": 2 ½ Sq Ft. Also Known As: 21AA Crushed Concrete, Paver Base, ¾" Down, Driveway Stone, Concrete Base.