Limestone #67

#67 limestone, also known as #67 stone, washed limestone, clean crushed limestone, or drainage aggregate, is a clean, angular crushed stone commonly used for drainage, concrete, driveway finishing, utility work, and general construction. It typically contains limestone particles ranging from approximately 1/4 inch to 3/4 inch with little to no stone dust or fines, although exact sizing and gradation can vary by quarry, supplier, and regional specification.

Produced at limestone quarries and aggregate plants, #67 limestone is crushed and screened to remove most fine particles and may also be washed depending on the source and specification. The limited amount of fines leaves open spaces between the stones, allowing water to move through the installed layer while the angular particles settle together and help resist movement.

Because #67 limestone contains a range of smaller stone sizes, it generally settles into a more uniform surface than larger clean stone while still maintaining drainage. This makes it useful for projects where a cleaner, finer aggregate is preferred without the dense compaction created by crusher run or other materials containing stone dust.

Compared with #57 limestone, #67 stone is generally smaller and can create a smoother finished surface. It is commonly used for driveway and access-road top dressing, concrete aggregate, drainage systems, trench backfill, pipe bedding, foundation drainage, and landscape construction.

This makes #67 limestone a practical choice for homeowners, contractors, builders, landscapers, farms, property managers, municipalities, and commercial construction projects. It can be used across residential properties, job sites, utility projects, parking areas, hardscape installations, and other applications that require clean crushed stone with both drainage and surface stability.

#67 limestone can also be used over a properly prepared aggregate base as a surface or finishing material. The compacted base beneath it provides the primary structural support, while the clean limestone creates a more uniform upper layer and allows water to pass through the surface.

Unlike crusher run or dense-grade aggregate, #67 limestone contains fewer fines and does not compact into a tightly bonded base. Crusher run is generally better suited for road bases, driveway foundations, and other applications requiring dense compaction, while #67 limestone is typically preferred where clean stone, drainage, concrete aggregate, or a finer finished surface is required.

Exact color, particle shape, and gradation vary between local quarries and aggregate suppliers. For larger residential, contractor, agricultural, municipal, landscaping, or commercial projects, #67 limestone is commonly available in bulk and delivered by dump truck directly to the property or job site.

Common Applications of #67 Limestone

• Driveway and access-road top dressing
• Drainage systems and trench backfill