6A Clean Limestone

6A limestone is a clean stone with very little or no fines.  It is commonly used when a cleaner decorative appearance is desired while still maintaining durability.

Because it lacks fines, 6A does not compact the same way 21AA or 411 materials do.

Common uses:

• decorative top layers
• edging
• drainage zones
• cleaner finished appearance
• blending into structural gravel surfaces

Advantages:

• visually appealing
• drains water well
• cleaner appearance
• reduced muddy look

Potential drawbacks:

• can shift more under traffic
• not ideal as a standalone structural base
• does not lock together like compactable aggregates