Screenings for Patios in Coaldale, PA

Pennsylvania Rock Supply handles gravel and aggregate delivery in Coaldale, PA for two kinds of buyers: contractors setting paver patios and driveways, and homeowners building a shed pad or a walkway. Both usually start with 2A modified. It is the standard Pennsylvania base stone, crushed stone with the fines left in so it compacts hard.

Around here that base work sits on folded bedrock ground, so it pays to know what your subgrade is doing before the stone shows up.

Ground and Conditions in Coaldale

Schuylkill County sits in the Ridge and Valley ground zone, where thin, stony soils cover sandstone ridges and the valleys are floored by shale or by limestone and dolomite that weather to clay. In the anthracite coal fields, old strip mines and waste piles break the ground up further.

A thin base is the failure you see on that ground. It pumps, heaves and rutts once freeze-thaw starts working on it, and a base that holds water breaks up even faster. Cold winters here bring repeated freeze-thaw cycles, with frost depth commonly about 36 inches and set by each municipality.

The practical answer is a thicker, well-compacted base with a clean drainage layer under or beside it, so water has somewhere to go. Do not put base stone down on frozen, soft or muddy ground. Base, driveway and paver work runs from spring, once the ground has thawed and dried, into late fall.

Drainage matters more than usual in the limestone and dolomite valleys. Runoff concentrated from roofs, gutters and drives can open sinkholes, so keep roof water and driveway runoff moving away from the house. On the ridges, snowmelt and rain running off steep slopes scour roadside ditches, culvert outlets and gravel drives.

Materials for Coaldale Projects

Most patio and flatwork jobs here come down to what goes under the pavers. Bedding is where the surface either stays flat or starts to rock, so the choice is worth weighing before you order.

For bedding under pavers and flagstone, ask for Screenings, also called stone dust. The fine crushed stone and chips under a quarter inch pack firm and give a paver an even seat. When you want a slightly coarser bed, Washed Sand blends coarse sand and fine gravel and levels well. Under a slab or a thick paver section, Washed Sand, also called concrete sand, is the usual leveling and bedding sand.

Under all of that goes the base. 2A Modified, also called modified stone, is crushed stone with the fines left in, and it compacts hard for driveways, parking pads and shed and patio bases. Crusher Run does the same job with fines mixed in, though Pennsylvania buyers usually ask for 2A modified instead.

Where the base has to drain, switch to clean stone. 2B Stone is washed 3/4 inch stone with no fines, so water moves through it and it does not pack hard. Use it for French drains, drainage behind retaining walls, and shed pads or drive bases in wet areas.

Once the base and bed are set, Driveway Gravel surfaces a drive or tops a compacted 2A modified base, and Top Soil handles the lawn and final grading around the work. For a raised bed, Garden Soil takes the place of fill.

Delivery to Coaldale and the Surrounding Area

Bulk material is ordered online, and the first decision is whether to size the load in tons or in cubic yards. Tons work well for stone and sand, since the weight is what the truck carries. Yards are easier when you are matching a volume you already measured, such as a bed or a base area.

The quantity calculator handles the conversion for you. Enter your dimensions and the depth you are building to, and it returns the amount to order. That keeps you from guessing on a load, and it is the simplest way to size a patio bed, a base or a topsoil layer.

At checkout you pick a delivery date, and a dump truck brings the load to your site in Coaldale. Pennsylvania Rock Supply delivers across Schuylkill County, including Pottsville, Tamaqua, Schuylkill Haven, Minersville and Shenandoah.

Questions About Gravel and Aggregate in Coaldale

What gravel is best for a driveway in Coaldale?

For most drives, 2A modified is the base: crushed stone with the fines left in, so it compacts hard and holds up through freeze-thaw. Where the drive stays wet, put clean 2B stone underneath for drainage. Then top the compacted base with driveway gravel for the wearing surface. On this ground, base depth and drainage matter more than the surface stone you pick.

How much material will my project need?

Use the quantity calculator before you order. Enter the length, width and depth of the area you are building, and it returns the amount in tons or yards. It works for a paver bed, a compacted base, a topsoil layer or a fill lift. If you are unsure of your depth, measure the area first and size the load from there.

Size Your Load, Then Place Your Order

Start with the calculator, enter your area and depth, and let it return the quantity in tons or yards. That gives you a number to order against, whether you are bedding a patio or rebuilding a drive. Then choose your delivery date at checkout and Pennsylvania Rock Supply will bring the material to your site in Coaldale.