How Much River Rock Do I Need Calculator
How Much River Rock Do I Need Calculator . Hardscape vendors calculate river rock usage the same way as gravel—by the cubic yard— when the size is up to three inches, and by the ton at sizes over three inches. If you are building a boulder wall, check out the boulder wall calculator. 4"8" River Rock in Tyler, TX All Natural Stone & Grass from wesellgrass.com Crusher run #89 stone #57 stone #34 stone. Square feet of coverage area ÷ coverage area per 1 ton = tons of rock needed. The standard depth is about 12″.