Is #57 stone the same as 3/4 inch gravel?

Close, but not exactly. #57 is gradation-controlled to ASTM C33 — it spans 1 inch down to a quarter inch with no fines. Generic 3/4 inch gravel varies by yard and may include fines. If your spec sheet says #57, ask for #57.

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#57 Stone (Crushed Granite)

Q: Does #57 stone compact?

Because there are no fines, #57 does not compact in the traditional sense, but its angular granite faces interlock to form a stable, free-draining layer that will not pump or migrate.

Q: 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 3/4 inch to minus or #610 Granite Base instead.

ASTM C33 / AASHTO M43 No. 57

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$79.50 /cubic yard

$79.50 Material (1 yd)

$100.00 Delivery (1 load)

$4.97 Tax (6.25%)

$184.47 Estimated Total

Material Estimator — How much do I need?

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Product Description

#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

Spec name	#57 Stone (ASTM C33 / AASHTO M43 size No. 57)
Material	Crushed granite, native to the Boston area
Nominal size	1" to ¼" (passes 1½" sieve, retained on #4)
Composition	Angular crushed granite, washed, no fines
Weight	~2,700 lbs per cubic yard (~1.35 tons)
Coverage	1 yd³ covers ~80 sq ft at 4" depth
Also known as	57s, AASHTO 57, drainage stone, septic stone, ¾" clean crushed stone
Sold by	The cubic yard, bulk dump truck delivery

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)

Sieve size	% passing
1½" (37.5 mm)	100
1" (25.0 mm)	95 – 100
½" (12.5 mm)	25 – 60
#4 (4.75 mm)	0 – 10
#8 (2.36 mm)	0 – 5

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, and Plymouth Counties. No minimum order; flat-rate delivery shown in the price breakdown.

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

Detailed Specs & Gradation

Spec identity

Standard	ASTM C33 / AASHTO M43 — Size No. 57
Material	Crushed granite, native to the Boston area
Nominal size	1" to ¼" (passes 1½", retained on #4)
Composition	Angular crushed granite, washed, no fines
Weight	~2,700 lbs/yd³ (~1.35 tons)
Coverage	~80 sq ft at 4" depth

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

Sieve size	% passing
1½" (37.5 mm)	100
1" (25.0 mm)	95 – 100
½" (12.5 mm)	25 – 60
#4 (4.75 mm)	0 – 10
#8 (2.36 mm)	0 – 5

Delivery Info

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. $100 flat rate, no minimum order.
Job site delivery available — live load tickets and signed BOLs on request.
Questions? Call (617) 645-0987 or see full delivery info →