When is the best time of year to order base material in Baltimore County?

Spring through late fall. Compaction needs workable ground, and mid-winter freezes and wet spells stop it. In the Piedmont, those stoppages are shorter than in Western Maryland, and work runs spring through late fall. Near the Bay shore, winter stoppages are brief, though low sites can stay too wet to compact after storms. Order ahead of a dry stretch.

What is the difference between topsoil and fill dirt?

Fill dirt raises grade, backfills and fills low spots before a base or topsoil goes down. It is structural, not growing material. Screened topsoil is the opposite: it feeds lawns and beds and rebuilds grade after construction. Use fill first, compact it, then cap with topsoil where plants will grow. Ordering them in the wrong order wastes both.

What is CR-6 and what is it used for in Baltimore County?

CR-6 is a dense-graded blend of crushed stone down to dust, and it compacts into a hard, tight surface. Maryland yards use the designation for driveway and road base. Order CR-6 for driveways, parking pads, shed bases and paver sub-base across Baltimore County.

Baltimore County Landscape Rock and Gravel, MD

Storm runoff moves fast here. Gravel, stone and aggregate delivery in Baltimore County, MD starts with drainage, because water decides how long a drive lasts. Maryland Rock Supply stocks CR-6, the compacting crushed stone blend Maryland yards use for driveways and road base. In the Piedmont, silty soil turns soft when saturated. Near the Bay shore, low flat ground sheds water slowly. Both call for stone that drains.

Materials Delivered in Baltimore County

Start with the job you are doing and pick materials to fit it. Here is what each material does on a Baltimore County job.

CR-6 does the heaviest lifting on most Baltimore County jobs. It is a dense-graded blend of crushed stone down to dust, and it locks up under a plate compactor. For highway base course. Washed stone sells by number instead: #57, #8, #89.

For drainage, order #57 Stone or Drain Rock under a French drain or downspout run. For a patio, bed pavers on Screenings over a compacted CR-6 base. For a drive, top the base with Driveway Gravel. For a walk, Walkway Gravel gives a finer, walkable surface. Brick and block work take Mason Sand, and concrete mixing takes Washed Sand.

Ground Conditions Across Baltimore County

This county spans two ground zones, and they behave differently under a load.

Central Maryland Piedmont

Towson, Catonsville, Randallstown and Owings Mills sit on loam, silt loam and clay loam weathered from schist and gneiss. The soil is often flaky with mica and carries rock fragments. Rolling slopes shed storm runoff fast toward stream valleys, and silty ground turns soft and hard to compact when saturated. Crown the drive and cut a ditch or drain where water collects. Winter freeze-thaw cycles heave and rut a drive built on a thin base or on wet, silty soil. Frost depth runs 30 inches in most county codes across this zone.

Western Shore Coastal Plain

Dundalk, Essex, Middle River and Sparrows Point sit on unconsolidated sand, silt, clay and gravel. Higher ground drains well; low spots hold slow-draining clay. Summer thunderstorms, nor'easters and tropical storm rain soak the ground, and flat land near the Bay sheds water slowly. Within 1,000 feet of tidal water, Critical Area rules limit lot coverage, and gravel and stone surfaces count toward it. Winters are milder than inland, but freeze-thaw still heaves a thin base, most of all over wet clay. Frost depth is set by each county.

Delivery Across Baltimore County

Order online and pick your quantity. Size a load by the ton or by the cubic yard, then match it to the depth you need. A driveway base goes down in lifts, each one compacted before the next goes on. Bulk delivery drops the load where the truck can reach, so flag the spot before it arrives.

Maryland Rock Supply delivers across the county, from Dundalk, Essex, Middle River and Rosedale to Towson, Catonsville, Pikesville and Owings Mills. We also run to Parkville, Perry Hall, White Marsh, Cockeysville, Reisterstown and Randallstown. Base, driveway and paver work runs spring through late fall, with only short winter stoppages for frozen ground. Low sites near the shore can stay too wet to compact after storms, so time those loads around the weather.

Choosing the Right Material

Ground next door changes the order. In the independent city of Baltimore, the fall line mixes soil over hard crystalline rock in the higher northern and western parts with Coastal Plain sand, silt and clay near the harbor. That mix means variable base depth and more drainage stone in the low areas.

Howard County shares Baltimore County's Piedmont ground: loam, silt loam and clay loam over schist and gneiss, flaky with mica. The ground is similar, so the comparison comes down to projects. Howard County work leans toward the same CR-6 base and stone dust bedding you would order here.

Harford County spans both zones, Piedmont and Western Shore Coastal Plain, so its base and drainage choices track whichever zone the site sits in. Check the ground before you pick the stone.

Order CR-6 and Base Stone for Your Baltimore County Job

Start with CR-6. It is the Maryland base material that carries driveways, pads and paver sub-base, and it compacts hard once the drainage is right. Add #57 stone for the wet spots and screenings for the bedding. Maryland Rock Supply delivers bulk loads across Baltimore County. Pick your material and quantity online and place your order.

Bulk Aggregate Delivery Across Baltimore County, MD