Material glossary
Screenings and stone dust
Screenings and stone dust are the fines a crusher makes on the way to sizing bigger stone. They pack tight and lock hard, which is why they're the go-to layer under pavers and behind retaining walls. Same material, different names by region — quarter minus, chat, ag lime, or just "dust."
Every screenings and dust family we track is below. Pick by what's going on top and how tight it needs to compact. We deliver the ones with a green pill; the rest are here for reference.
Families in screenings and stone dust
How to choose within screenings and stone dust
Under pavers
Screenings compact hard and level flat — ideal for a paver setting bed. Uniform depth (about an inch) matters as much as the material.
Behind a wall
Fines pack tight against a retaining wall's back face. Add a drain line under the fines so water doesn't sit against the wall.
Not for drainage
These pack too tight to drain. Skip them anywhere you need water to move — French drains, downspout runouts, foundation perimeter.
Material calculator
Estimate how much you need
Pick one of the screenings and stone dust we deliver, tell us your area and depth, and we'll work out the tons plus your delivered price.
Area shape
Dimensions
Depth
Enter your area to see the math
Pick a material, shape and dimensions and we'll calculate the tons you need plus your delivered price.
Other material categories
Crushed stone
Crushed stone is rock that's been broken and screened into sizes.
Decorative stone and rock
Decorative stone and rock is what you see, not what you sit on.
Base materials
Base materials go under a driveway, patio, or slab — not on top.
Rip rap and armor stone
Rip rap and armor stone are the big pieces that hold a shoreline, a slope, or a culvert together.
Mulch and organics
Mulch and organics are the top layer that goes over the soil — bark, wood chips, compost, or a dyed blend.
Gravel
Gravel is loose stone in the size range you'd actually notice — pea-sized up to a few inches.
Sand products
Sand is fine crushed rock, small enough to pass through a #4 screen (about 3/16 of an inch).
Fill materials
Fill is what goes in the hole before anything else does.
Concrete aggregate
Concrete aggregate is the stone and sand that go into a concrete mix.
Recycled materials
Recycled materials are crushed concrete, crushed asphalt, and reclaimed base — old road and slab work run back through a crusher.
Drainage materials
Drainage materials are clean, angular stone that moves water without holding it.
Asphalt aggregate
Asphalt aggregate is the stone side of asphalt — the sizes that get blended into a hot-mix or cold-patch recipe at the plant.
Specialty products
Specialty products are the odds and ends that don't fit the usual categories — flagstone, boulders, ballast, glass gravel, unusual sizes …
Bedding materials
Bedding materials are the clean, washed layer that goes around a pipe, under a paver, or behind a wall before backfill goes in.
Landscape
Landscape covers the loose stone and rock that go into a yard for looks — around a bed, along a border, or across a bare spot.