Crushed Limestone vs River Rock: Size, Cost, and Which to Use

Crushed Limestone

Crushed limestone is quarried limestone that has been crushed and screened into standard sizes from screenings to 3-inch rock. It costs $20 to $45 per ton in 2026, weighs 1.3 to 1.5 tons per cubic yard, and is the cheapest crushed stone across the Midwest, Texas, Florida, Pennsylvania, and any other region sitting on limestone bedrock. Its light color, low price, and the way its fines cement together under traffic make it the default driveway and road gravel in a big part of the country.

River Rock

River rock is naturally rounded stone from river beds and glacial gravel deposits, washed and screened into size bands from 3/4 inch to 8 inches. It costs $40 to $100 per ton in 2026, weighs 1.35 to 1.6 tons per cubic yard, and is the go-to decorative stone for dry creek beds, garden beds, borders, and drainage swales where the rock needs to look good and stay put. It costs two to three times what crushed stone costs because it is sorted and washed, and because the supply is limited to places with river gravel.

Crushed Limestone

• ✓ Driveways
• ✓ Road base
• ✓ Drainage
• ✓ Paver base
• ✓ Concrete aggregate
• ✓ Farm lanes and arenas
• ✓ Landscaping

River Rock

• ✓ Landscaping
• ✓ Dry creek beds
• ✓ Decorative borders
• ✓ Drainage swales
• ✓ Water features
• ✓ Ground cover

Crushed Limestone

• + Cheapest crushed stone in the Midwest, Texas, and Florida
• + Fines cement together into a hard surface
• + Light color brightens driveways and beds
• + Every standard size available
• + Packs harder than granite crusher run

• − White dust in dry weather
• − Raises soil pH, bad for acid-loving plants
• − Softer, breaks down faster under heavy trucks
• − Expensive where it has to be trucked far

River Rock

• + Best-looking bulk stone, natural mixed colors
• + Never decomposes, one-time install
• + Drains fast and rarely clogs
• + Large sizes stay put in moving water
• + Available in sizes from 3/4 inch to 8 inch cobbles

• − Expensive, $40 to $100 per ton
• − Never packs, so it is a poor surface to walk or drive on
• − Heavy and awkward to spread
• − Holds heat in full sun
• − Hard to clean leaves and debris out of

Crushed Limestone

Crushed limestone comes in every standard sieve size: screenings under 1/4 inch, #8 (3/8 to 1/2 inch), #57 (3/4 to 1 inch), #4 (1 to 1.5 inch), #2 (2 to 3 inch), and crusher run (3/4 or 1.5 inch minus). It is angular when fresh and wears smoother than granite. Color runs white, cream, light gray, and tan, and it turns bright white as dust dries on the surface.

River Rock

River rock is sold by size band: 3/4 to 1 inch (sometimes called large pea gravel), 1 to 2 inch (egg rock), 2 to 3 inch, 3 to 5 inch, and 5 to 8 inch cobbles. Every piece is smooth and rounded. Colors are a natural mix of tan, brown, gray, cream, rust, and black, with regional loads that run mostly one shade. Single-color sorted rock costs more.