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

Crushed stone has angular, broken faces, so it locks together and compacts. Natural Pea Gravel is rounded natural stone that stays loose underfoot. That makes crushed stone the better pick for bases and driveways, and Natural Pea Gravel the better pick for walkways, play areas and light drainage.

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

Both work. Stone, sand and gravel are usually sold by the ton, while soil and mulch are often sold by the yard. Pick whichever unit you are comfortable with, then size the load with the calculator so the truck arrives with the right amount.

Which stone is best for drainage in Delaware County?

Clean stone with no fines is what you want, because water passes through it instead of packing tight. 2B stone is the local name for 3/4 inch Crushed Stone. #4 stone suits underdrains and heavy flow.

Delaware County, PA Aggregate and Rock Delivery

Pennsylvania Rock Supply handles gravel, stone and aggregate delivery in Delaware County, PA. If you are building a driveway, a shed pad or a patio base, the material you want is 2A modified. It is the standard Pennsylvania base stone: crushed stone with the fines left in, so it compacts hard and stays put.

Ground here is mixed Piedmont. Uplands are loamy soils weathered from schist and gneiss, lowlands run to red shale and sandstone, and limestone valleys weather to heavy clay. That mix decides how deep a base needs to go and how well it drains.

Materials Delivered in Delaware County

Yards around here sort stone by size. The list below runs coarsest to finest, with what each size is good for in Delaware County.

2A Modified is the one to start with on most jobs. 2A modified is the trade name for a 2A-type base with extra fines added. Yards here still say 2B for #57 and 1B for #8, so you will hear both sets of names on the same job.

For drainage, #57 Stone and #67 Stone are the clean options. Fine bedding runs to #89 Crushed Stone or 3/8" Crushed Stone. Decorative work takes River Rock or Large River Rock.

Sand and soil finish the job. Mason Sand goes into mortar and paver joints, Washed Sand into concrete and bedding, and Top Soil, Garden Soil and Fill Dirt handle grade and planting. Shredded Mulch covers the beds once the hard work is done.

Ground Conditions Across Delaware County

Base, driveway and paver work 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, so timing matters as much as material.

Winters bring repeated freeze-thaw cycles. A thin or poorly drained base can heave and break up, even though frost does not reach as deep here as in most of the state. Frost depth is about 30 to 36 inches, set by each municipality; the City of Philadelphia uses 30 inches.

Heavy summer storms and spring rain run off built-up ground and are managed under municipal stormwater rules. Over limestone, runoff concentrated from roofs, gutters and drives can open sinkholes, so drainage matters more in those valleys. Storm runoff also scours stream banks and washes out ditches, culvert outlets and sloped gravel drives.

Delivery Across Delaware County

You order online, choose a quantity by the ton or the yard, and size the load with the calculator. Then you pick a delivery date at checkout. A dump truck brings the material to your site.

Coverage reaches Upper Darby, Haverford, Chester, Drexel Hill, Springfield, Aston, Lansdowne, Darby, Broomall, Woodlyn, Folsom, Brookhaven, Glenolden and Ridley Park.

Bulk delivery means the truck tips the load where you want it. Have the spot clear and reachable before the date you choose, especially on sloped drives that stay soft after rain.

Choosing the Right Material

Delaware County sits in Southeastern Pennsylvania, in the Southeastern Piedmont and Delaware River lowland ground zone. Philadelphia County and Montgomery County share that same zone, so the ground is similar and the choice usually comes down to the project. Dense city lots lean toward clean stone for tight drainage, while suburban yards lean toward 2A modified for drive and pad bases.

Chester County shares the zone as well, but its open ground and longer rural drives call for more base stone and more clean stone for ditches and culvert outlets. The material logic does not change, only the volume.

Wherever you build in this county, start with a compacted 2A modified base and add clean stone only where water has to move.

Order Gravel and Stone in Delaware County

Pennsylvania Rock Supply delivers 2A modified, clean stone, sand, soil and decorative rock across Delaware County, from Upper Darby and Haverford to Chester, Aston and Ridley Park. Pick your material, size the load by the ton or yard with the calculator, and choose a delivery date at checkout. Place your order online and the truck brings it to your site.

Bulk Gravel and Stone Delivery in Delaware County, PA