River rock measuring 3 to 6 inches will cover roughly 50 square feet per ton. River rock measuring 6 inches and over will cover roughly 25 square feet per ton.

How many sq ft will a ton of river rock cover?

One (1) ton of river rock covers approximately a 50-75 sq. ft.

How do you calculate rock coverage?

Rock Coverage Calculation To calculate this size, measure the length and width of the project area. Multiplying those numbers will give you the square footage (or square meters for our metric friends). For example, if your project area is 20 feet long by 20 feet wide, your coverage area is 400 square feet.