How to Choose the Right Grade of Crushed Stone
A crushed stone with a size less than one inch, crushed stone #5 is best for filler materials, the top driveway layer, railroad ballast, and septic drainage fields. Crushed Stone #7 With a size from 3/4 inch to #8 sieve, crushed stone #7 is used for septic tank-line bedding, filtration, bio-retention ponds, asphalt production, retaining wall ...
