Gravel & Aggregate Projects
Gravel looks like the simplest material on the job site and produces some of the most common ordering mistakes: buying the geometric volume without compaction, using one density for every rock type, and paying bag prices for a bulk-sized job. This hub collects the calculators, layer-by-layer guides, and current price references for driveways, bases, paths, and drainage stone.
The estimating sequence that avoids short orders: measure area and compacted depth, convert to loose volume with compaction and waste allowances, convert loose volume to tons through the material's density, then price against per-ton quotes and delivery fees.
Calculators
Planning guides
Costs & budgeting
Getting the order right
Two corrections separate a good gravel estimate from a short one. Compaction: stone is sold loose but installed compacted, so the finished layer consumes roughly 15% more loose material than its measured volume. Density: pea gravel at 2,400 lb per cubic yard and dense-graded base at 2,900 lb differ by 20%, so always convert with the density of the product you are actually buying. Both corrections are built into the gravel calculator, and every formula is documented in our methodology. If the project involves digging out the area first, size the excavation and haul-away with the excavation hub.
Frequently Asked Questions
How much does gravel cost in 2026?
Bulk crushed stone and gravel runs $10 to $50 per ton at the quarry for common grades, with pea gravel at $30-50 and decorative river rock at $40-75. Delivery adds $10-20 per ton depending on distance.
How many tons of gravel are in a cubic yard?
Most crushed stone and gravel weighs 1.2 to 1.45 tons per cubic yard. Suppliers sell by weight, so convert volume through the density of the specific product you are ordering.
How deep should gravel be?
A gravel driveway needs 8-12 inches total, built as separate compacted layers. Paths need 3-4 inches over fabric, slab bases 4-6 inches, and French drain backfill fills the trench around the pipe.
Is it cheaper to buy gravel by the ton or by the bag?
Bulk wins for anything over about half a cubic yard. Bagged stone costs 3 to 5 times more per unit of material once you pass a handful of bags; the delivery fee is what keeps small orders competitive in bags.