Crushed Stone Grades: A Complete Guide
Crushed stone #67 Sizes from 3/4″ down to fine particles. For fill, road and slab base. Crushed stone #1 Sizes are from 2″ to 4″. The largest of the crushed stone grades. For larger stone such a culvert ballast. Crushed stone #8 Sizes from 3/8″ to 1/2″. For concrete and asphalt mix. Crushed stone #3 -Sizes from 1/2″ to 2″.