Crushed Stone (1″ Minus, Idot, Ca-6, Type B)

Crushed Stone - IDOT CA-6 Type B, 1” Minus

Crushed stone labeled as IDOT CA-6 Type B in a 1" minus size range is a versatile aggregate commonly used in both residential and commercial construction. Produced by mechanically crushing larger rocks, this material features a mix of stone fragments up to 1 inch in size, along with fines that fill the gaps between larger pieces. The "minus" designation means all particles are 1 inch or smaller, which helps the material compact tightly.




The CA-6 Type B specification ensures the aggregate meets Illinois Department of Transportation standards, making it reliable for load-bearing applications. Its blend of sizes and fines provides excellent compaction and stability, making it ideal for use as a base material under driveways, parking lots, sidewalks, and patios. It is also commonly used for road construction, trench backfill, and as a subbase for concrete or asphalt. The main advantage of this material is its ability to create a solid, stable foundation with minimal settling. However, the presence of fines means it may not drain as freely as more open-graded aggregates, so it is best suited for areas where compaction and stability are priorities.