Material glossary
Drainage materials
Drainage materials are clean, angular stone that moves water without holding it. Washed so the fines don't clog, sized so the pieces lock around a pipe or a foundation and leave room for flow. If it drains, this is the aisle.
Every drainage-stone family we track is below. Bigger stone drains faster, smaller stone packs tighter. We deliver the ones with a green pill; the rest are here for reference.
Families in drainage materials
Drainage Materials Drain Rock
We deliverDrain rock is washed, clean stone with the fines rinsed out and the pieces sized close to the same.
Drainage Materials Bedding
We deliverDrainage bedding is clean, angular crushed stone that you place under and around a pipe in a trench.
Drainage Materials Fill Material
We deliverAny stone sold as drainage fill has been washed and screened so no dust or sand rides along with it.
Drainage Materials Sand
ReferenceDrainage sand is a clean, washed sand with the fines rinsed out so water moves through it instead of pooling.
Drainage Materials Rip Rap
ReferenceRip rap is big, angular broken stone placed along creek banks, ponds, and drainage channels to stop water from cutting into the ground.
Septic Rock
ReferenceSeptic rock is clean, washed stone that surrounds the perforated pipes in a septic drain field.
3 we deliver today · 3 listed for reference
How to choose within drainage materials
French drain
Washed 3/4" to 1" stone. Angular so it locks around the pipe, washed so it doesn't clog with fines.
Foundation perimeter
Larger clean stone — river rock or #57 — moves water away without holding it.
Downspout dispersion
Cover the splash zone with clean rock so runoff spreads instead of digging a hole.
Material calculator
Estimate how much you need
Pick one of the 7 drainage materials products 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.
Screenings and stone dust
Screenings and stone dust are the fines a crusher makes on the way to sizing bigger stone.
Recycled materials
Recycled materials are crushed concrete, crushed asphalt, and reclaimed base — old road and slab work run back through a crusher.
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.