Aggregate Materials

Limestone, sand and gravel products are available through a network of quarries and sand & gravel production facilities conveniently located throughout northwest Ohio and southeast Michigan. We have the stock, selection and locations to give our customers a cost-effective and simplified aggregate material buying experience.

Service, Selection & Location

Check out the listing below to learn more about what is offered through each facility, including whether items are ODOT or MDOT certified and approved. Need a quote for your project? Complete our simple online form, and we’ll match you with the right pricing, product and facility.

The Custar Stone Company

The Custar Stone quarry. produces high-quality limestone products of all sizes and gradation ranges, along with other aggregate products. All products are ODOT certified and approved, including:

  • 1, 2, 4, 9 & 10
  • 6 & 8 (washed and non-washed)
  • 57, 67, 304, 310 & 411
  • TY A riprap (24″-30″)
  • TY B riprap (18″-24″)
  • TY C riprap (12″-18″)
  • TY D riprap (6″- 12″)
  • Super berm
  • Topsoil
  • Washed manufactured sand
  • Washed natural sand
  • Fill

The Bluffton Stone Company

The Bluffton Stone quarry produces a multitude of limestone products and carries numerous non-limestone products. The quarry also produces a flagstone with unique color and composition for various landscaping projects and needs. All products are ODOT certified and approved.

  • 2, 4, 6, 8, 9, 10 & 57
  • 411 & 304 berm stone
  • Manufactured sand
  • TY B riprap
  • TY C riprap
  • TY D riprap
  • Natural sand
  • Pea gravel
  • Fill dirt
  • Top soil
  • Ag lime
  • Flag stone
  • Cold mix
  • Filter sand (if available)

Gerken Materials – West Millgrove, OH Quarry

The West Millgrove quarry produces limestone products of all sizes and gradation ranges, along with other aggregate products. All products are ODOT certified and approved, including:

  • 1, 2, 4, 10, 46, 304X & 310
  • 7 & 8 (both washed)
  • 6, 9, 57, 67 & SS8 (all washed)
  • 304 & 411 berm stone
  • TY B riprap (18″-24″)
  • TY C riprap (12″-18″)
  • TY D riprap (6″-12″)
  • Ag lime
  • Washed manufactured limestone sand
  • Washed natural sand
  • Filter sand
  • Pea gravel (washed)
  • Drain stone (washed)
  • Roofing stone (washed)

Gerken Materials – Hillsdale, MI Sand & Gravel Pit

Our Hillsdale location is easily accessible to both southeast Michigan and northwest Ohio. It produces material from either dredging or running dry bank through the plant. The Hillsdale pit has a range of materials that are natural, washed, crushed and processed, and it even has a select number of limestone products. Select materials are certified and approved by ODOT. Material offerings include:

  • Asphalt sand
  • Concrete sand
  • Ice control sand
  • Mason sand
  • 6, 8 & 57 gravel (crushed & non-crushed)
  • 2s oversized gravel
  • Pit run
  • 60/40 cement mix
  • 23A processed gravel
  • 6, 8, 57, 304 & 411 limestone
  • Topsoil
  • Landscape boulders
  • Manufactured gravel sand

Gerken Materials – Jonesville, MI Sand & Gravel Pit

The Jonesville, MI pit produces material from either dredging or running dry bank through the plant. The Glacial pit has a range of materials that are natural, washed, crushed and processed, and it even has a select number of limestone products. All materials are high-quality and MDOT certified and approved. Product offerings include:

  • 2NS sand (washed)
  • 60/40 mix (washed)
  • Pea gravel (washed)
  • 6A drain (washed)
  • Roofing (washed)
  • Mason sand (washed)
  • Bank run (natural)
  • Class 2/3 (natural)
  • Ungraded fill (natural)
  • Screened topsoil (natural)
  • Oversize 2″-6″ & 6”-18” (all natural)
  • 1/2″-3/4″ & 3/8”-1/2” (all crushed)
  • 3/16″-3/8″-29A (crushed)
  • Crusher dust (crushed)
  • 21AA, 22A & 23A (all processed)
  • Numbered limestone
  • 304/411 berm stone
  • Limestone riprap (TY D)
  • UPM cold mix

Gerken Materials- Round Lake, MI Sand & Gravel Pit

The use of a lake dredge provides the plant with the materials to produce natural and crushed aggregates for our customers. The Round Lake pit produces and stages a range of materials. Offerings include natural, crushed, washed, processed, and even a select number of limestone products:

  • 2NS sand (washed)
  • 60/40 mix (washed)
  • EPA sand (washed)
  • Pea gravel (washed)
  • Birdseye (washed)
  • 6A drain (washed)
  • Roofing/landscaping (washed)
  • Mason sand (washed)
  • 1/2″-3/4″ (6s) (crushed)
  • Crusher dust (crushed)
  • 21AA, 22A & 23A (all processed)
  • Class 2 & 3 (natural)
  • Ungraded fill (natural)
  • Clay (natural)
  • Topsoil (natural)
  • Oversize 2”-6″ & 6”-18” (all natural)
  • Numbered limestone
  • 304/411 limestone
  • Limestone riprap (TY D)
  • UPM cold mix

Gerken Materials – Clinton, MI Sand & Gravel Pit

Gerken Materials has developed it’s Clinton, MI sand pit for distribution to locations throughout southeast Michigan and northwest Ohio. It produces material from either dredging or running dry bank through the plant. The Clinton pit has a range of materials that are natural, washed, crushed and processed, and it even has a select number of limestone products. Select materials are certified and approved by ODOT. Material offerings include:

  • Asphalt sand
  • Concrete sand
  • Ice control sand
  • Mason sand
  • 6, 8 & 57 gravel (crushed & non-crushed)
  • 2s oversized gravel
  • Pit run
  • 60/40 cement mix
  • 23A processed gravel
  • 6, 8, 57, 304 & 411 limestone
  • Topsoil
  • Landscape boulders
  • Manufactured gravel sand

Gerken Materials, Inc. – Tecumseh, MI Sand & Gravel Pit

Gerken Materials’ Tecumseh location is easily accessible to both southeast Michigan and northwest Ohio. It produces material from either dredging or running dry bank through the plant. The Tecumseh pit has a range of materials that are natural, washed, crushed and processed, and it even has a select number of limestone products. Select materials are certified and approved by ODOT. Material offerings include:

  • Asphalt sand
  • Concrete sand
  • Ice control sand
  • Mason sand
  • 6, 8 & 57 gravel (crushed & non-crushed)
  • 2s oversized gravel
  • Pit run
  • 60/40 cement mix
  • 23A processed gravel
  • 6, 8, 57, 304 & 411 limestone
  • Topsoil
  • Landscape boulders
  • Manufactured gravel sand

Let us make your aggregate buying experience convenient, easy and cost effective. Request a quote for your next project.