Buy Gravel in Bulk Ozinga Aggregates
1 1/2″ river rock is primarily used in landscaping applications. CA6 Road Gravel. Grade 9, Road Rock. ... Roofing Ballast. ASTM #3, ASTM #4. Our roofing ballast is produced to meet ASTM standards often required by architects, engineers, and insurance companies. Boulders and Cobblestone. Boulders and cobblestone are available in various sizes ...