Specialty Products

3 Stone

#3 stone is large crushed rock, roughly 1 1/2 to 2 inches across the biggest pieces. The pieces are angular and the fines are washed out, so water runs straight through the gaps. You can walk on it, but you'll feel every rock underfoot. It's built for drainage and heavy fill, not for a smooth walking surface.

The 3 is a screen size from the ASTM D448 spec. It tells you how big the pieces are and says nothing about the kind of rock they came from. Yards crush it from whatever's local, usually limestone, granite, or trap rock. It's a specialty size, so you'll see it priced a bit higher than common driveway stone and sold in smaller loads.

named grade in this family

What people use it for

French drain and curtain drain backfill where water volume is highHeavy erosion control on slopes, shorelines, and stream banksBase rock under thick concrete pads and heavy equipmentStabilizing muddy access roads and construction entrancesRailroad and rail-siding ballastLarge drainage swales and dry wells

How to choose within 3 stone

Ask before you order

These aren't catalog items. Confirm size, color, and delivery window with the yard before you commit — every load runs differently.

Match the job to the stone

Flagstone, boulders, ballast, glass gravel — each has one right job. Get the job clear first, then the stone follows.

Lead time is longer

A specialty order usually ships slower than a #57 pallet. Plan the delivery date around the material, not the other way around.

All 3 stone grades

#3 Stone (Ice Mix Prep)

Ice controlWinter road safetyTraction improvement

2" to 1"

Other specialty products families

Aglime

Reference

Aglime is limestone that's been crushed and ground into a fine powder or grit.

10 grades→

Sand Blend

Reference

Sand blend is sand mixed with something else to hit a specific job.

7 grades→

Squeegee

Reference

Squeegee is fine crushed rock chips, roughly 1/4 inch and smaller, with the stone dust left in.

4 grades→

Anti Skid Stone

Reference

Anti-skid stone is a small, angular crushed rock you spread on icy roads, driveways, and walkways so tires and shoes can grip.

3 grades→

Grit

Reference

Grit is small, angular crushed stone, usually granite or quartz.

2 grades→

Agstone

Reference

Agstone is finely crushed limestone that farmers spread on fields to raise soil pH.

1 grade→

Asphalt Mix

Reference

Asphalt mix is crushed rock and sand held together by hot liquid asphalt cement.

1 grade→

Ball Clay

Reference

Ball clay is a fine-grained sedimentary clay that's mostly kaolinite, with some mica and quartz mixed in.

1 grade→

Cold Patch

Reference

Cold patch is bagged asphalt you can shovel into a pothole without a hot mix truck.

1 grade→

Field Soil

Reference

Field soil is native dirt scraped and screened straight from open farmland or unused acreage.

1 grade→

Horse Bedding

Reference

Horse bedding is the loose material you spread across a stall floor so a horse has a soft, dry place to stand and lie down.

1 grade→

Masonry Aggregate

Reference

Masonry sand is the fine, clean sand you mix into mortar for laying brick, block, and stone.

1 grade→

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