Specialty Products
Specialty Products 1 Stone
#1 stone is the biggest crushed rock on the standard size chart. Pieces run about 3 1/2 inches down to 1 1/2 inches, bigger than a golf ball and sometimes bigger than a baseball. The chunks are angular and screened clean of the small dust. Because the rocks are so big, there's a lot of empty space between them, and water pours through fast.
The 1 is a size number from the ASTM D448 and AASHTO M43 specs. It tells you how big the pieces are and says nothing about what kind of rock they came from, so you'll see #1 in limestone, granite, or river gravel depending on what's local to your quarry. You can't use #1 under a driveway or a paver base because the chunks are too big to compact flat. It's for heavy drainage work: behind retaining walls, under large culverts, or at the bottom of a French drain that has to move a lot of water.
What people use it for
How to choose within specialty products 1 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 specialty products 1 stone grades
Other specialty products families
Aglime
ReferenceAglime is limestone that's been crushed and ground into a fine powder or grit.
Sand Blend
ReferenceSand blend is sand mixed with something else to hit a specific job.
Squeegee
ReferenceSqueegee is fine crushed rock chips, roughly 1/4 inch and smaller, with the stone dust left in.
Anti Skid Stone
ReferenceAnti-skid stone is a small, angular crushed rock you spread on icy roads, driveways, and walkways so tires and shoes can grip.
Grit
ReferenceGrit is small, angular crushed stone, usually granite or quartz.
3 Stone
Reference#3 stone is large crushed rock, roughly 1 1/2 to 2 inches across the biggest pieces.
Agstone
ReferenceAgstone is finely crushed limestone that farmers spread on fields to raise soil pH.
Asphalt Mix
ReferenceAsphalt mix is crushed rock and sand held together by hot liquid asphalt cement.
Ball Clay
ReferenceBall clay is a fine-grained sedimentary clay that's mostly kaolinite, with some mica and quartz mixed in.
Cold Patch
ReferenceCold patch is bagged asphalt you can shovel into a pothole without a hot mix truck.
Field Soil
ReferenceField soil is native dirt scraped and screened straight from open farmland or unused acreage.
Horse Bedding
ReferenceHorse bedding is the loose material you spread across a stall floor so a horse has a soft, dry place to stand and lie down.