Crushed Stone Calculator
Calculate the right amount of crushed stone for driveways, patio bases, and drainage projects. Select your application type, enter dimensions, and get volume, tonnage, and estimated cost.
Types of Crushed Stone
Crushed stone is classified by size number. #1 stone is 2 to 4 inches and used for large drainage projects. #3 stone (1 to 2 inches) works for railroad ballast and drainage. #57 stone (3/4 to 1 inch) is the most versatile for driveways, walkways, and French drains. #411 and #21A are crusher run products that contain fines and compact into a solid base. #8 stone (3/8 inch) is used for pipe bedding and paver joints. Choosing the right size is critical: too large and it won't compact, too small and it may impede drainage.
Ordering and Delivery
Crushed stone is sold by the ton at quarries and landscape supply yards, typically $30 to $80 per ton depending on stone type and region. Delivery fees range from $50 to $200 based on distance and load size. Most dump trucks carry 10 to 20 tons per load. For small projects under 1 ton, you can buy crushed stone in bags at home centers for about $5 per 50-pound bag, which is significantly more expensive per ton but avoids delivery minimums.
Frequently Asked Questions
What size crushed stone do I need?
Use #57 stone (3/4 to 1 inch) for driveways and drainage. Use #21A or #411 crusher run for compactable bases under pavers and slabs. #8 stone (3/8 inch) works for pipe bedding.
How thick should a crushed stone driveway be?
A residential driveway needs 4 to 6 inches of crushed stone over compacted subgrade. Heavy-traffic or soft-soil areas benefit from 8 to 12 inches in two lifts.
How many tons of crushed stone per cubic yard?
Crushed stone weighs approximately 1.4 tons per cubic yard, though this varies slightly by stone type and moisture content.