#4 Stone vs Crushed Stone: Size, Cost, and Which to Use

#4 Stone

Sieve size #4 in the ASTM aggregate grading means most of the stone passes a 1.5-inch screen and stays on a 3/4-inch screen. In practice you get a pile of roughly walnut to golf ball sized rock. Every piece is angular because it was crushed, and those sharp edges lock together under load instead of rolling like river stone. Because it is washed or screened clean, there are no fines to fill the gaps between pieces. That is the whole point: about 35 to 40 percent of a pile of #4 is air, so water moves through it fast.

Crushed Stone

Crushed stone is rock that a quarry blasted, crushed, and screened into a set size range. It costs $20 to $40 per ton in 2026, weighs 1.35 to 1.55 tons per cubic yard, and is the base under nearly every road, driveway, slab, and patio in the country. The important difference from "gravel" in the natural sense is shape: crushed stone is angular, so the pieces lock together, while natural river gravel is rounded and rolls. Almost everything sold as gravel at a quarry is crushed stone.

#4 Stone

• ✓ Driveway and road base
• ✓ Drainage beds
• ✓ Retaining wall backfill
• ✓ Construction entrance pads
• ✓ Pipe bedding for large pipe
• ✓ Erosion control

Crushed Stone

• ✓ Driveways
• ✓ Road base
• ✓ Concrete mix
• ✓ Drainage
• ✓ Paver base
• ✓ Backfill

#4 Stone

• + Excellent drainage with 35 to 40 percent void space
• + Bridges soft ground better than smaller stone
• + Cheap, $20 to $40 per ton, and stocked everywhere
• + Angular pieces lock together under load
• + Same price as #57 with more drainage capacity

• − Too coarse to walk on or drive on as a surface
• − Needs a finer cap layer for any traffic
• − Hard to rake and spread by hand
• − Sinks into soft clay without fabric

Crushed Stone

• + Angular pieces interlock and carry weight
• + Cheapest bulk material at $20 to $40 per ton
• + A size for every job, from dust to 4-inch rock
• + Stocked at every quarry
• + Drains (clean) or packs (minus), your choice

• − Sharp edges, hard on bare feet and tires in big sizes
• − Plain gray look
• − Easy to order the wrong size
• − Larger sizes are hard to spread by hand

#4 Stone

#4 stone is crushed rock screened to pieces between 1 and 1.5 inches, with some quarries running it up to 2 inches. It is angular with sharp fractured faces. Color follows the quarry: gray or blue-gray limestone in the Midwest and Northeast, gray to pink granite in the Southeast, tan limestone in Texas.

Crushed Stone

Crushed stone is sold by sieve size, from stone dust and #10 screenings (under 1/4 inch) through #8 (3/8 to 1/2 inch), #57 (3/4 to 1 inch), #4 (1 to 1.5 inches), #3 (1.5 to 2.5 inches), and #1 or #2 (2.5 to 4 inches). Every size is angular with fractured faces. Color follows the quarry: gray or blue-gray limestone, gray to pink granite, dark basalt, or tan sandstone and limestone in the South.