Bulk Aggregates for Pathways in Oakmont, PA

Pennsylvania Rock Supply handles gravel and aggregate delivery in Oakmont, PA, with the materials local crews actually ask for by name. That starts with 2A modified, the crushed stone with the fines left in that packs hard under a driveway or a shed pad. We also stock the clean washed stone, sands, soils and decorative rock that finish the job.

Oakmont sits on hilly ground in Allegheny County, where silty and clay-rich soils shed heavy rain and snowmelt down steep slopes. The right stone for your path or drive depends on what the ground under it is doing.

Ground and Conditions in Oakmont

A thin base is the problem you notice first here. Clay-rich soil that stays wet softens and heaves through repeated freeze-thaw cycles, and a base that is too shallow or drains poorly breaks up at the edges and ruts in the wheel tracks.

The fix is a base that drains and compacts. Excavate deep enough for the load, put down a compacted 2A modified layer, and make sure water has somewhere to go instead of sitting in the clay.

Where roof and drive runoff is sent matters on these hillside lots. Water soaking into clay layers on a slope is the main cause of slumping, so a downspout run or a French drain filled with clean stone keeps water off the hill.

Base, driveway and paver work runs from spring, once the ground has thawed and dried, into late fall. Long wet spells and rain on snow are when hillside ground is most likely to move, so timing the work matters.

Local frost depth is commonly about 36 inches and is set by each municipality. That is the number your building official uses for footings, and it tells you why a base here has to be built to shed water rather than hold it.

Materials for Oakmont Projects

For paths and walkways, the material that makes the surface is the fines and screenings, not the big stone. Order the base course first, then the fine layer that goes on top of it.

Screenings, also called stone dust, are fine crushed chips under a quarter inch that pack firm. They are the standard bedding for pavers and flagstone and a smooth top for a garden path. Walkway Gravel covers a similar job when you want a finer, walkable surface over a compacted base.

Under either one goes the base. 2A Modified is the Pennsylvania base stone, crushed stone with the fines left in so it compacts hard. It carries driveways, parking pads and shed bases. Crusher Run does the same work, though most buyers here ask for 2A modified.

Where a path or a paver edge needs to shed water, clean stone is the answer. 2B Stone, also called 3/4 inch clean stone, has no fines, so water moves through it and it never packs hard.

For edging and borders, River Rock and Large River Rock build dry creek beds and heavier decorative work. Soils round out the order: Top Soil for lawns and final grading, Garden Soil for raised beds.

Sands matter for the same paths. Washed Sand beds and levels under pavers and slabs, and Mason Sand handles brick and block mortar and paver joints.

Delivery to Oakmont and the Surrounding Area

You order online, pick a quantity by the ton or the yard, choose a delivery date at checkout, and a dump truck brings it to your site. If you are not sure how much you need, the calculator sizes the load for you.

Tons and yards are two ways of describing the same pile, and the calculator is the quickest way to settle on one before you order. That matters when a path takes a small load and a driveway takes a large one.

Pennsylvania Rock Supply delivers across Allegheny County, including Pittsburgh, Bethel Park, Monroeville, Allison Park and West Mifflin. Have the drop spot clear and reachable, and the truck can place the pile where you want to work from.

Build Your Path Order

Start with the calculator to work out how many tons or yards your path, base and bedding layer will take, then choose your materials and a delivery date at checkout. Pennsylvania Rock Supply delivers bulk gravel, stone, sand and soil across Oakmont and Allegheny County, so place your order and get the pile where you need it.