Lime Screenings for Patios in Prairie du Rocher, IL

Illinois Rock Supply handles gravel and aggregate delivery in Prairie du Rocher, IL, and the surrounding part of Randolph County. You order online by the ton or the yard, and a dump truck tips the load at your site.

CA-6, also called road base, is the dense graded crushed limestone with the fines left in that most driveways and pads here start from. Lime screenings bed the pavers and flatwork that sit on top of it.

Ground and Conditions in Prairie du Rocher

Across the Western Illinois loess uplands and the Mississippi border, deep loess sits over older drift on rolling ground cut by bluffs and steep ravines. Loess sheds water fast on slopes and holds it in the flats.

That is where a thin base course shows its weakness. Water moves through silty ground, the subgrade shifts under it, and the surface above rocks and dips.

A paver patio or a concrete slab that fails usually failed underneath, not on top.

The fix is a base course that carries load and a bedding layer that stays even. CA-6 with its fines binds up and holds a shape under a patio or a drive.

Clean washed stone does the opposite job, letting water through instead of holding it.

In the sinkhole country, water disappears into the ground instead of running to a ditch, so drainage has to be planned rather than assumed. Work runs from the spring thaw into late fall here, a little longer than upstate.

Frost still lifts drives and walks each spring, and the Randolph County building department sets its own footing depth.

Materials for Prairie du Rocher Projects

The bedding layer is what makes or breaks a patio, a walk or a slab in this ground. Here is what to order and why.

Lime Screenings are crushed limestone fines, and they are the standard bedding layer in Illinois for pavers and flagstone. They compact to a tight, even surface that holds a paver without letting it rock.

CA-6 is the dense graded crushed limestone base under that bedding. The fines left in it let it bind and carry weight, which is what a driveway, parking pad, shed base or trench backfill needs.

Under a patio, it is the structural layer the screenings sit on.

For drainage and pipe work, CA-7 is washed clean stone with no fines, used for bedding under pipe, drainage trenches, French drains and concrete flatwork. 3/4" Crushed Stone, sold as CA-11, is the companion size Illinois yards carry for the same bedding and drainage work.

Washed Sand, called torpedo sand locally, is the coarse washed sand for concrete, leveling and bedding. It sets up hard under a slab or a sand-set paver.

CA-16 Chips are 3/8 inch limestone chips for permeable paver bedding, drainage around tanks, and topping a compacted base. Top Soil and Garden Soil cover the lawn and bed side of the same project.

Delivery to Prairie du Rocher and the Surrounding Area

Quantities are ordered by the ton or by the yard, so you decide which unit fits how you are measuring your project. Each product page has a calculator you can use to size the load before you check out.

You pick a delivery date at checkout, and a dump truck tips the load in one pile at your site. The driver does not spread or place it, so plan where the pile should land before the truck arrives.

Delivery covers Prairie du Rocher and the rest of Randolph County, including Chester, Sparta, Red Bud, Steeleville and Percy. Bottomland sites here wait out spring high water, so timing matters on ground close to the river.

Order Your Base and Bedding Material

Start with the square footage of your patio, walk or drive, then use the calculator on the product page to size the load. Illinois Rock Supply delivers CA-6, lime screenings, CA-7 and washed sand across Prairie du Rocher and Randolph County, ordered online and tipped at your site.