Crusher Run vs Lava Rock: Size, Cost, and Which to Use

Crusher Run

Crusher run is crushed stone with the rock dust left in, sold as 3/4 inch minus or 1.5 inch minus. It costs $20 to $35 per ton in 2026, weighs 1.5 to 1.7 tons per cubic yard, and packs into a surface hard enough to drive on year after year. It is the standard base under roads, driveways, parking lots, and patios, and the best single-layer material for a gravel driveway. In the Southeast it is called crush and run. Highway departments call it aggregate base course, ABC, or Class 5.

Lava Rock

Lava rock is a lightweight, porous volcanic stone commonly used in landscaping. Its rough texture helps retain moisture while allowing airflow to plant roots.

Crusher Run

• ✓ Driveways
• ✓ Parking areas
• ✓ Road base
• ✓ Paver base
• ✓ Walkways
• ✓ Shed and equipment pads

Lava Rock

• ✓ Landscaping
• ✓ Garden beds
• ✓ Decorative ground cover

Crusher Run

• + Packs into a hard, drivable surface
• + Cheapest processed stone at $20 to $35 per ton
• + One layer does the whole driveway on firm ground
• + Grades smooth and repairs easily
• + Stocked at every quarry

• − Does not drain, sheds water instead
• − Dusty when dry, muddy when wet before it seals
• − Dense, so a ton covers less area than clean stone
• − Wrong choice for any drainage use
• − Plain gray look

Lava Rock

• + Very lightweight
• + Excellent moisture retention
• + Decorative appearance

• − Breaks down over time
• − Sharp edges
• − Can scatter easily

Crusher Run

Crusher run is everything that comes off the crusher below a set size, usually 3/4 inch minus or 1.5 inch minus: angular stone at the top of the range down to sand and rock dust. Roughly a third of the mix is fines. Color matches the quarry rock, typically gray limestone or gray to tan granite, and it lightens as the dust dries.

Lava Rock

Typically 3/4"–1.5" sizes. Red or black.