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 Black Shredded Mulch

Side-by-side comparison of #57 Gravel and Black Shredded Mulch 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.

Black Shredded Mulch

Shredded hardwood mulch dyed black for a bold, modern landscape look. Rich black color makes green plants and colorful flowers stand out. Holds its color longer than brown mulch and provides the same moisture retention, weed suppression, and soil temperature regulation benefits.

Common Uses

#57 Gravel

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

Black Shredded Mulch

✓ Landscape beds
✓ Tree rings
✓ Garden borders
✓ Foundation plantings
✓ Commercial landscaping
✓ Contrast beds

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

Black Shredded Mulch

+ Bold black color creates striking contrast with plants
+ Holds color longer than natural brown mulch
+ Retains soil moisture reducing watering
+ Suppresses weed growth naturally
+ Insulates soil temperature

− Dye can temporarily stain hands, concrete, and clothing
− Needs replenishing every 1-2 years as it decomposes
− Can attract termites if placed against structures
− Fades to dark gray over time
− Slightly more expensive than undyed mulch

Cost Comparison

Measure	#57 Gravel	Black Shredded Mulch
Per ton	$20 – $35	$25 – $45
Per cubic yard	$25 – $45	$30 – $50

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.

Black Shredded Mulch

Shredded strips of bark and wood, typically 1-4 inches long, dyed with carbon-based black colorant. The dye is non-toxic and safe for plants and pets. Double-shredded black mulch mats together better and resists displacement.

Published February 11, 2026

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