#57 Rock
Washed #57 stone — a clean, well-draining 3/4" to 1" angular aggregate graded to ASTM D448 #57. Used under slabs, for French drains, pipe bedding, and wherever spec calls for #57 compliance.
Density: ~1.40 t/yd³
Density: ~1.40 t/yd³
Category: Drainage
Common Uses: Drainage, Under slabs, Pipe bedding, ASTM #57
Load Limits: 17 ton max per truck · no minimum order
Available Sizes: Washed
Related guides
Spec this material with confidence.
Phoenix Contractor's Guide
The full playbook — quarry routing, load sizing, base specs, delivery timing.
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Screened vs Minus vs Washed
The three ways crushed rock gets processed — and why it matters for your job.
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How Much DG Do I Need?
Coverage math for decomposed granite and similar fine aggregates.
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Wet vs Dry Aggregate
Why the same load weighs different amounts — and what it means for your order.
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Delivery Prep Checklist
The 1-page site-prep sheet that prevents most failed deliveries.
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Failed-Delivery Policy
How the $250 fee actually works, when it's reduced, and the math on a missed delivery.
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