How many square feet will a yard of river rock cover?

Answer 1

The answer depends on the depth of the layer.

1 yard of river rock actually means "1 cubic yard" of river rock.

A cubic yard is 3 ft x 3 ft x 3 ft = 27 cubic ft

If you want a layer that is 3 ft deep, it would cover 9 square ft (i.e. 3 ft x 3 ft = 9 sq ft)

If you want a layer that is 4 inches deep, it would cover 81 square ft

x^2 * (4"/12") = 27

x^2 = 27 * 12/4 = 81

x = sqrt (81)

x = 9

9 ft x 9ft = 81 sf