#9 Stone (#16 To #4, Ca-6)

#9 Stone with Ca-6 Attribute, Size Range #16 to #4

#9 stone with a Ca-6 attribute in the #16 to #4 size range is a versatile crushed aggregate commonly used in construction and landscaping. Produced by mechanically crushing larger stones, this material is carefully screened to achieve a gradation from fine particles (#16 sieve) up to small gravel pieces (#4 sieve). The Ca-6 designation indicates a well-graded mix that includes both coarse and fine particles, enhancing compaction and stability.




The specific size range and Ca-6 attribute make this aggregate ideal for creating strong, stable bases in both residential and commercial projects. It is frequently used for sub-bases under driveways, sidewalks, patios, and roadways, as well as for trench backfill and under pavers. The blend of fines and larger particles allows for excellent compaction, reducing voids and providing a solid foundation. While the presence of fines improves stability, it may reduce drainage compared to more open-graded aggregates. Overall, #9 stone with Ca-6 gradation is valued for its workability, compaction, and reliable performance in load-bearing applications.