ABC Stone & Aggregate Base Calculator
Crushed stone and aggregate base course (ABC stone / crusher run / 21A gravel) calculator. Computes exact cubic yards, compaction shrinkage allowance (+10-20%), total tonnage (1.45 tons/yd³), and total material cost for driveways, patios, and slab foundations.
ABC Stone & Aggregate Base Calculator
Calculate tons and cubic yards of ABC stone (aggregate base course), crusher run, and driveway gravel needed with compaction allowance.
7.41 tons
14,822 lbs5.11 yd³
Incl. 15% compaction360.0 sq ft
40.0 sq yards$333.50
@ $45/tonWhat is ABC Stone (Crusher Run)?
ABC Stone (Aggregate Base Course), also known as Crusher Run, Dense Grade Aggregate (DGA), or 21A / 21B gravel, is a blend of crushed stone ranging from 1-inch pieces down to fine stone dust. When watered and rolled with a plate compactor, the dust interlocks between the larger stones to create a solid, rock-hard foundation for driveways, concrete slabs, patios, and pavers.
How to Use ABC Stone & Aggregate Base Calculator
Enter Dimensions
Input length, width, and depth of the excavation area.
Choose Material & Compaction
Select ABC stone or clean gravel and set compaction factor (typically 15%).
Get Order Tonnage
View tons and cubic yards needed to order from your local quarry.
Frequently Asked Questions
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