River Rock Coverage Calculator
Calculate River Rock Coverage
Estimate river rock for landscaping and ground cover
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Formula
Tons = Area (sq ft) x Depth (in) / 12 / 27 x Weight per cu yd / 2,000
Frequently Asked Questions
How deep should river rock be for landscaping?
For ground cover and landscaping, 2-4 inches of river rock is standard. Use 2 inches minimum for decorative beds and 3-4 inches for walkways and drainage areas.
How much does river rock weigh per cubic yard?
River rock weighs approximately 2,200-2,600 pounds per cubic yard depending on size. Smaller rocks are denser (2,600 lbs/yd3) while larger rocks have more air gaps (2,200 lbs/yd3).
What size river rock should I use?
Use 1-2 inch rocks for decorative beds and borders, 2-4 inch rocks for ground cover and dry creek beds, and 4-8 inch rocks for drainage, retaining features, and bold accent areas.
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