#57 Stone (¾″–1″ Washed Granite Gravel)

About #57 Stone (¾″–1″ Washed Granite Gravel)

#57 Stone is a clean, angular granite aggregate with particles averaging ¾″–1″ in size. It is one of the most widely used construction aggregates in Upstate South Carolina. Because it contains no fines, it drains freely and does not compact, making it ideal for drainage applications and concrete mixes.

In Spartanburg, Greenville, and surrounding counties, #57 Stone is commonly used for driveway surfaces, French drains, pipe backfill, and septic drain fields. It is also blended into concrete mixes as the standard coarse aggregate.

While it is free-draining, it does not lock together like Crusher Run. For surfaces subject to heavy traffic, #57 is often placed over a compacted base layer.

Local Applications in Upstate SC

• Driveways & Parking Areas: Commonly used as a top layer over Crusher Run for drainage.

• French Drains: Allows free water flow, preventing hydrostatic pressure.

• Septic Drain Fields: Meets SC DHEC requirements for drain field aggregate.

• Concrete Mixes: Standard coarse aggregate in ready-mix concrete.

• Retaining Walls: Used as free-draining backfill to relieve pressure.

• Pipe Bedding: Provides stability and drainage around utilities.

Coverage and Density

• Average Density: ~22 cubic feet per ton

• Coverage: ~100 sq ft per ton at 2″ depth

• Coverage: ~65 sq ft per ton at 3″ depth

• Note: Coverage varies with placement and compaction of base layers.

Comparison to Other Materials

• Crusher Run: Compactable; better as a base under #57 Stone.

• #789 Stone: Smaller (⅜″–½″), smoother finish; often used in walkways.

• River Sand: Provides drainage with finer texture in septic systems.

Local Performance in Upstate SC

• Clay Soils: Commonly installed over Crusher Run or fabric to prevent sinking in clay-heavy subgrades.

• Drainage Systems: Widely used in French drains, septic drain fields, and trench backfill across Spartanburg, Greenville, Cherokee, and Laurens counties.

• Driveway Tops: Applied as a top layer over Crusher Run to balance compaction and drainage.

FAQ – #57 Stone (Upstate South Carolina)

What is #57 Stone used for in Spartanburg and Greenville counties?

Primarily for driveways, drainage, septic systems, and concrete mixes.

Does #57 Stone compact?

No. It drains freely and does not compact. For compaction, use Crusher Run.

How much area does a ton cover in Upstate SC?

~100 sq ft at 2″ depth or ~65 sq ft at 3″ depth.

Is #57 Stone good for driveways in Spartanburg clay soils?

Yes, but usually placed over Crusher Run for a stable base.

Can #57 Stone be used in French drains?

Yes. It is the most common stone for French drains in Upstate SC.

Does SC DHEC approve #57 Stone for septic drain fields?

Yes. Washed #57 Stone meets drain field aggregate requirements.

Can #57 Stone be used in concrete mixes?

Yes. It is the standard coarse aggregate for concrete in this region.

How does #57 Stone compare to #789 Stone?

#789 is smaller (⅜″–½″) and smoother, better for walkways. #57 is larger and better for drainage and driveways.

Is fabric recommended under #57 Stone in clay soils?

Yes. Geotextile fabric prevents mixing with subgrade clay in Spartanburg and Greenville.

How heavy is a tri-axle load of #57 Stone?

About 20–22 tons depending on quarry and DOT limits.

Is #57 Stone available year-round in the Upstate?

Yes. It is one of the most consistently stocked products at quarries.

Can #57 Stone be tailgate spread?

Yes. It spreads evenly compared to larger stone.

What’s the minimum order and free delivery policy?

Sold by the ton; free delivery starts at 15+ tons.

Can #57 Stone be used as backfill behind retaining walls?

Yes. It provides drainage and relieves hydrostatic pressure.

Is #57 Stone used in livestock or barn applications?

Not typically. Livestock pads require engineered designs with different aggregates.

Disclaimer

Natural products vary in size and color. Quantities are approximate. See our Disclaimer & Terms of Delivery page for full details.