Pea Gravel Primary Uses: Making of concrete, roofing gravel, landscaping,   1/2" or 7/8" Round Rock Primary Uses: Playground material, dog runs, landscaping   Concrete Rock Primary Uses: Making of concrete, roofing gravel, landscaping   1" Washed Gravel Primary Uses: Making of concrete, weeping tile, concrete base, parking pads, landscaping   2" Washed Gravel Primary Uses: Drain rock, landscaping   Washed Sand Primary Uses: Making of concrete, laying paving stones, sand boxes   Mortar Sand Primary Uses: Stucco and sand boxes