Type B Rip Rap A little smaller than Type A riprap, Class B rip rap works for many of the same projects as Type A. Typically, this type is used on slopes with less erosion than Type A. Type B rip rap is excellent for steep slopes and smaller than type A on average, but still prevents erosion efficiently.

Rip Rap (Class A & Class B) Rip Rap is a larger cut rock, like a gravel type rock though much larger in size. The Rip Rap comes in two sizes. Class A ranges in size from roughly the size of a softball to a football. Class B ranges in size from a football to a basketball.

One ton of rip rap, whose rocks range from 3 to 8 inches in size, will cover about 35 linear feet, and 3 feet of width. So, all told, likely about 12 or so square yards. These are some of the most frequently asked questions regarding rip rap, along with some of its advantages.

Class C rip-rap should vary in size from 5 inches (12.7 cm) to 3 feet (0.94 m) with no more than 20% by weight being less than 9 inches (22.9 cm). The thickness of the layer should be 3.5 feet (1.1 m) with a tolerance of 6 inches (15.2 cm).