#57 Stone in Idaho
The rough, broken texture of #57 Stone suits Idaho drainage systems and concrete work where Palouse or Panhandle ground holds water.
- Size: 3/4 inch to 1 inch
- Grading: #57
- Type: Angular crushed rock
From $389.00 for 1 ton, delivery included
Larger loads cost less per ton: 500 tons is $22,675.00 ($45.35 per ton). Pick any quantity below for a delivered price.
Free delivery included
Free delivery anywhere in Idaho
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Weekday delivery, earliest Sep 25
“Our small congregation in Rexburg dealt with standing water pooling by the fellowship hall every time the irrigation ditch overflowed in early summer. Three tons of number 57 went into a French drain along the foundation, and the volunteer crew had it graded and covered inside of a Saturday. Idaho Rock Supply quoted a fair price per ton and the driver waited while we walked the exact line for the trench.”
Marilyn S. · Verified Buyer
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Everything You Need to Know About #57 Stone
Size and Grading
- Size
- 3/4 inch to 1 inch
- Grading
- #57
- Type
- Angular crushed rock
A common mistake is assuming Idaho ground drains the same from site to site. Treasure Valley alluvial gravel may pass water readily, while Palouse loess and Panhandle clay can hold it near the surface. #57 Stone uses its angular, crushed form to leave routes between pieces for drainage systems, and it also works in concrete.
Check the ground before deciding where drainage aggregate belongs, especially in areas with moderate frost. For a French drain, keep #57 Stone in the part of the system intended to carry water rather than blending it into general backfill. This keeps the drainage path distinct where soil is likely to retain moisture. It is also suitable for construction applications requiring aggregate.
Quickly Calculate How Much You Need
Material: #57 Stone
How to Measure
Measure the length and width of your project area in feet
Decide on depth in inches (2" for landscaping, 4" for driveways)
Enter the values above and we'll calculate the tonnage you need
Need help figuring out the right amount? We can help!
Call or text us at our contact form and we'll help you calculate the right quantity for your project.
Not sure how much you need? The Stone Calculator has depth guides, coverage charts and worked examples for this material.
Common Uses
Concrete Mix Stone
Concrete mixes commonly use #57 stone as their coarse aggregate. With particles from 3/4 to 1-inch, it creates the load-bearing stone skeleton in foundations, slabs, and structural elements, supporting concrete's compressive strength and durability.
French Drains & Drainage Systems
With evenly sized pieces, #57 stone leaves open routes for water around French drains, curtain drain runs, and perimeter drain systems. Its voids let water move through instead of collecting fines and plugging the bed.
Retaining Wall Backfill
Place #57 stone behind retaining walls where drainage and support are needed together. The stone supports the backfill while allowing water to escape, reducing pressure against the wall.
Driveway & Parking Surfaces
For driveways and parking areas, #57 stone makes a hard-wearing surface that lets water through. Compaction seats the angular rock together, while its larger pieces give tires useful grip.
Why Choose #57 Stone
Industry-Standard Sizing
ASTM aggregate gradation specifications apply to #57 stone. With a defined gradation, it can be selected for engineered work where the aggregate size is specified.
Superior Drainage
The 3/4 to 1-inch stone range leaves interconnected open space for water movement. #57 stone is useful for residential and commercial drainage beds where a clean, free-flowing aggregate is called for.
Structural Strength
#57 stone can function as aggregate in concrete or as base beneath a project. Its angular particles seat together during compaction, creating support for heavy loads and helping reduce settling.
Multi-Purpose Value
Use #57 stone for concrete, drainage, or landscape work. On jobs with several stages, the same material can cover more than one use and reduce the types of aggregate needed.
Frequently Asked Questions About #57 Stone
Customer Reviews
Wall stopped moving after the drain
A client near the Snake River canyon in Twin Falls had water undermining a retaining wall every spring runoff. We had Idaho Rock Supply run six tons of 57 stone behind the wall as a drain field, tied into a pop up emitter at the bottom of the slope. Six months and one soggy April later, the wall hasn't budged and the client keeps sending pictures of her dry basement.
Priya N. · Twin Falls, ID · Verified Buyer
Drain field held through freeze and thaw
We pulled out a failed septic drain field on a farmstead outside Moscow last fall, in the middle of the Palouse wheat country, and the county required a specific bed depth before backfill. Twelve tons of number 57 stone gave clean, uniform coverage over the distribution pipe with no fines clogging things up. Idaho Rock Supply got a tri-axle out on a Tuesday, and the driver backed patiently between the grain bins on a farm road still soft from harvest. Six months of freeze and thaw later, the ground over the field hasn't settled or shifted a bit.
Anthony F. · Moscow, ID · Verified Buyer
Cutting it close on the window
Two and a half tons for a drain line along the garage in Kuna. Stone was clean and right for the pipe, but the truck came near the end of the window and I had already left for work.
Trevor B. · Kuna, ID · Verified Buyer
Dry fellowship hall at last
Our small congregation in Rexburg dealt with standing water pooling by the fellowship hall every time the irrigation ditch overflowed in early summer. Three tons of number 57 went into a French drain along the foundation, and the volunteer crew had it graded and covered inside of a Saturday. Idaho Rock Supply quoted a fair price per ton and the driver waited while we walked the exact line for the trench.
Marilyn S. · Rexburg, ID · Verified Buyer
Calculator came up short on tonnage
Ordered four tons of number 57 for a drain line at a rental property in Nampa after tenants complained about a swampy side yard. The online calculator undershot it and I had to call for one more ton before the crew could finish grading, which pushed the job an extra day. Once it was all in, the yard has stayed dry through two wet springs since.
Kevin O. · Nampa, ID · Verified Buyer
#57 Stone has 5 verified customer reviews with an average rating of 4.6 out of 5.


