This specification refers to a specific size and type of aggregate material commonly used in construction and landscaping. The “3 4” designation indicates that the individual pieces of rock range in size, with the largest dimension being approximately three-quarters of an inch. This graded material is often sought by individuals requiring it in a geographically proximate location. As an example, it might be used as a base layer for pathways or driveways.
The selection of this particular aggregate size offers several advantages. The varied size provides good compaction, creating a stable and durable surface. Historically, similar materials have been utilized for drainage, erosion control, and as a foundational element in various building projects. Its ready availability and relatively low cost contribute to its widespread use.