What is the difference between crushed stone and Natural Pea Gravel?

Crushed stone has angular, broken faces, so the pieces lock together and compact. Natural Pea Gravel is rounded natural stone, so it stays loose underfoot and drains well but will not form a hard surface. Use crushed stone such as 2A modified for driveways, pads and bases, and Natural Pea Gravel for walkways, play areas and light drainage.

Should I order material by the ton or by the yard?

Either works, and the calculator converts between them for the material you pick. Order by the ton when you know the weight your project needs, and by the yard when you are thinking in volume, such as filling a bed or covering an area to a set depth. Size the load with the calculator before you check out.

Which stone is best for drainage in York County?

Clean stone with no fines, because water has to pass through it. 2B stone, which local yards also call 2B clean stone or 3/4 inch clean stone, is the usual pick for French drains, downspout runs and backfill behind retaining walls.

York County 2A Modified and Gravel Delivery, PA

What should you order for a driveway, a shed pad or a drainage run? Start with 2A modified, the crushed stone with the fines left in that compacts hard. Pennsylvania Rock Supply handles gravel, stone and aggregate delivery in York County, PA, from the Piedmont uplands down through the limestone valleys. Order online by the ton or the yard and a dump truck brings it to your site.

Delivery across York County

You order online, size the load by the ton or the yard, and pick your delivery date at checkout. The load arrives on a dump truck and is placed where you want it on the site.

We cover York, Hanover, Red Lion, New Freedom, Dallastown, Shrewsbury, Manchester, Dillsburg, Glen Rock, Wrightsville, Spring Grove, Dover, Stewartstown and Windsor. If you are not sure how much you need, use the calculator before you check out.

Materials delivered in York County

Local yards still use the older names: 2B for #57 and 1B for #8. Here is the lineup by size, coarsest to finest.

2A Modified carries the most weight in York County work. It is crushed stone with the fines left in, which is what lets it compact into a hard, tight surface. Order it for driveways, parking pads, and shed and patio bases. Crusher Run does the same job with fines mixed in, though most buyers here ask for 2A modified. Driveway Gravel surfaces an existing drive or tops a compacted base. River Rock and Large River Rock handle decorative beds, borders and dry creek beds. For soil, Top Soil is screened to take out stones and roots, and Fill Dirt raises grade or backfills before a base or topsoil goes down.

Ground conditions across York County

York County ground is mixed Piedmont: loamy soils weathered from schist and gneiss on the uplands, red shale and sandstone in the lowlands, and limestone valleys whose soils weather to heavy clay. Each one changes what you order and when you can place it.

On the clay-heavy limestone valleys, water sits instead of draining. Plan on a clean stone drainage layer rather than a fine, tight surface. Heavy summer storms and spring rain run off built-up ground under municipal stormwater rules, and over limestone, runoff concentrated from roofs, gutters and drives can open sinkholes, so keep water moving away from the foundation.

The working season runs from spring, once the ground has thawed and dried, into late fall. Base stone should not go down on frozen, soft or muddy ground. Winters bring repeated freeze-thaw cycles, so a thin or poorly drained base can heave and break up. Frost depth here runs about 30 to 36 inches and is set by each municipality, and the City of Philadelphia uses 30 inches. Storm runoff from paved and built-up ground also scours stream banks and washes out ditches, culvert outlets and sloped gravel drives, which is where RipRap and clean stone come in.

Choosing the right material

York County sits in the Southeastern Piedmont and Delaware River lowland zone, and both Lancaster and Adams counties share that same ground. Expect similar soils and drainage, so the base and drainage choices carry over. Those jobs tend to run toward driveways, sheds, paver patios and drainage behind walls, the same work you see here.

Cumberland County is the one that differs. It sits in the Great Valley and Ridge and Valley zone, with folded bedrock, long sandstone ridges, thin stony soils, and valleys floored by shale or by limestone and dolomite that weather to clay. In the anthracite coal fields there, the ground is broken up by old strip mines and waste piles. That means more rock, more slope, and more variable subgrade, which pushes Cumberland work toward clean drainage stone and armoring rather than a fine compacting base.

So in York County, lead with 2A modified where you need a hard, compacted surface, and switch to 2B or #57 where water has to move. Ask about the fines if you are unsure.

Order bulk aggregate for your York County project

Pennsylvania Rock Supply delivers 2A modified, clean stone, sand and soil across York County, from York and Hanover to Dillsburg, Shrewsbury and Windsor. Pick your material, size the load by the ton or the yard with the calculator, and choose your delivery date at checkout. Place your order online and we will bring it to your site.

Bulk Aggregate Delivery Across York County, PA