Nov 28, 2017 Different applications require different sizes of crushed stone. The Definition of Crushed Stone 8. Crushed stone 8 is also referred to as clean crushed stone or 3 8-inch washed stone. The crushed clean stone of 3 8 inches is considered an aggregate. During the crushing process, the stones size is reduced, then it is screened using a 3 8-inch.Please enter the measurements below and press Calculate to receive the approximate tons of 4 ledge or chopped stone needed for edging the specified area. Length (in Feet) Calculate. Tons Needed. 6” CHOPPED STONE WILL COVER 70-75 LINEAR FEET PER TON. 8” CHOPPED STONE WILL COVER 45-50 LINEAR FEET PER TON.