2021-11-2 · CRUSHED STONE. Our Crushed Stone is blasted and crushed in a licensed mining environment. The stone is screened to sizes ranging from 9.5mm to 22mm. Our larger range include unselected dump rock (1mm – 200mm), Gabion Rock/Selected Dump Rock (80mm – 200mm), Boulders (200mm+). 9.5mm Stone: Used in Construction of Roads and Asphalt MIxes.