What Size Gravel for Driveway?

A well-built gravel driveway uses three layers of progressively smaller stone: Base Layer (4 inches) Use #3 stone (1-2 inches) or #4 stone (1.5-3 inches). These large angular stones create a stable foundation and won't sink into soft soil. A geotextile fabric under this layer prevents the stone from migrating into the subgrade. Middle Layer (4 inches) #57 stone (3/4 to 1 inch) is the standard choice. It fills the gaps in the base layer, adds stability, and provides a transition to the finer top layer. Top Layer (2-3 inches) #8 gravel (3/8 to 1/2 inch) or crushed limestone creates a smooth driving surface. Some homeowners prefer #411 (a blend of #57 stone and stone dust) because the dust fills voids and compacts into a very firm surface. What to Avoid Avoid using pea gravel or river rock for driveways — their rounded shape means they never lock together and will constantly shift under tires, creating ruts.

#57 Gravel vs Rip Rap

Side-by-side comparison of #57 Gravel and Rip Rap to help you choose the right gravel for your project.

Overview

#57 Gravel

Crushed stone approximately 3/4 to 1 inch in size. One of the most versatile and commonly used gravel sizes in both residential and commercial construction. #57 stone is the go-to aggregate for drainage, driveways, and concrete production.

Rip Rap

Large, heavy, angular stones ranging from 6 to 24+ inches used primarily for erosion control. Rip rap protects shorelines, stream banks, bridge abutments, and steep slopes from water erosion. The heavy weight and interlocking shape resist displacement by flowing water and wave action.

Common Uses

#57 Gravel

✓ Driveways
✓ Drainage
✓ Concrete mix
✓ Pipe bedding
✓ Backfill
✓ Parking areas

Rip Rap

✓ Shoreline protection
✓ Stream bank stabilization
✓ Bridge abutments
✓ Steep slope stabilization
✓ Culvert outlets
✓ Retaining wall faces

Pros & Cons

#57 Gravel

+ Extremely versatile — works for many applications
+ Excellent drainage characteristics
+ Good compaction when combined with fines
+ Widely available nationwide
+ Cost-effective

− Too coarse for comfortable walking
− Angular edges
− Shifts under foot traffic without stabilization
− Requires a finer top layer for driveways
− Not decorative

Rip Rap

+ Extremely effective at preventing water erosion
+ Heavy weight resists displacement by water
+ Long-lasting — lasts decades with no maintenance
+ Angular shape interlocks for stability
+ Natural appearance blends with waterside environments

− Very heavy — requires heavy equipment to place
− Expensive for large projects
− Not suitable for foot traffic
− Requires engineering design for major installations
− Limited decorative appeal

Cost Comparison

Measure	#57 Gravel	Rip Rap
Per ton	$20 – $35	$35 – $80
Per cubic yard	$25 – $45	$45 – $100

Sizes & Colors

#57 Gravel

#57 gravel consists of angular crushed stone pieces ranging from 3/4" to 1" in diameter. Color depends on the quarry source — typically gray, blue-gray, or brown. The stones are angular and irregular, which helps them interlock.

Rip Rap

Large angular stones typically 6-24 inches in diameter, though some applications use stones up to 36 inches or larger. Weight ranges from 25 to 500+ pounds per stone. Colors vary by source quarry — typically gray, blue-gray, tan, or brown. Sold by the ton rather than by the yard.

Published February 11, 2026

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