#57 Stone (Crushed Granite)

#57 Stone (Crushed Granite) — The Industry-Spec Drainage & Concrete Stone

#57 Stone is the named-spec crushed stone every drainage installer, septic contractor, and ready-mix concrete crew calls out by number. Quarried from native Boston-area granite, angular, washed, and gradationally clean of fines, it drains fast, locks under load, and meets the ASTM C33 / AASHTO M43 No. 57 standard called out on engineered drawings. If a plan sheet says "57 stone," this is the material.

At a glance

What it's good for

• French drains, foundation drains, and curtain drains
• Septic system drain fields and leach beds
• Pipe bedding and backfill around culverts and drainage tile
• Ready-mix concrete coarse aggregate (when ASTM C33 is specified)
• Permeable paver base layers and dry wells
• Driveway top dressing where a clean, drainable finish is wanted

Gradation (ASTM C33 / AASHTO M43 — Size No. 57)

How much do I need?

For a 100 ft French drain trench (12"-wide, 6" of stone above and below a 4" pipe), plan on about 3.7 cubic yards. For a 200 sq ft permeable paver base at 6" depth, plan on about 3.7 cubic yards. Use the material calculator at the top of the page for any custom dimensions — and round up by 5–10% for compaction and overdig.

How #57 compares to neighboring sizes

• #57 vs. #67: #57 has a 1" top size; #67 has a ¾" top. Both are clean. #57 drains slightly faster.
• #57 vs. #89: #89 is much smaller (⅜" top). Use #89 where a tighter packing or finer top dressing is needed.
• #57 vs. #610: #57 is clean (drains). #610 is dense-graded (compacts solid). Not interchangeable — pick by application.
• Residential equivalent: Same material as our Gray Crushed Rock ¾" — two ways to ask for the same product.

Frequently asked questions

Is #57 stone the same as ¾" gravel?
Close, but not exactly. #57 is gradation-controlled to ASTM C33 — it spans 1" down to ¼" with no fines. Generic "¾" gravel" varies by yard and may include fines. If your spec sheet says #57, ask for #57.

Does #57 stone compact?
Because there are no fines, #57 doesn't compact in the traditional sense — but its angular granite faces interlock to form a stable, free-draining layer that won't pump or migrate. That's why drainage installers prefer it.

Can I use #57 stone under pavers?
Yes for permeable paver systems where ASTM C33 #57 is the specified open-graded base. For traditional pavers, use Dense Pack ¾" to minus or #610 Granite Base instead.

How much does a cubic yard of #57 stone weigh?
About 2,700 lbs per cubic yard, or roughly 1.35 tons. A standard half-ton pickup should not carry more than about a half yard.

Do you deliver #57 stone?
Yes — same-day and next-day bulk delivery across Suffolk, Middlesex, Norfolk, Essex, Plymouth, Bristol, and Barnstable Counties. No minimum order. Delivery is $100 per truckload within 30 miles of our Dispatch Office, then $4 per mile beyond; your exact price shows in the breakdown.

Same-day and next-day bulk delivery, no minimum order. We deliver #57 stone across Suffolk, Middlesex, Norfolk, Plymouth, Essex, Bristol, and Barnstable County.

Pair with our Concrete Sand for ASTM C33 bedding, or step up to Dense Pack ¾" to minus when a compacted base is what the job calls for.

Order today — the industry-spec stone every drainage and septic contractor asks for by name.

• Same-day & next-day delivery available — weekends fill fast, order early.
• Curbside or on-property drop — let us know at checkout.
• Up to 6 yds per load for dense materials (gravel, soil, rock, sand) — mulch loads carry up to 10 yds. Delivery is $100 per load within 30 miles of our Dispatch Office, plus $4 per mile beyond. No minimum order.
• Job site delivery available
• Questions? Call (617) 645-0987 or see full delivery info →