Bulk Gravel and Stone Delivery in DeKalb County, IL
Illinois Rock Supply handles gravel, stone and aggregate delivery in DeKalb County, IL for two kinds of buyers: contractors working on a schedule and homeowners fixing a drive or a bed. Both order the same way, online, by the ton or the yard.
CA-6 is the base material this part of Illinois is built on. It is dense graded crushed limestone with the fines left in, and it goes under driveways, parking pads, shed and garage bases and trench backfill.
Materials Delivered in DeKalb County
CA-6, also written CA6, is dense graded crushed limestone with the fines left in.
It is ordered for driveways, parking pads, shed and garage bases and trench backfill. See CA-6.
CA-7 is washed clean stone with no fines, for bedding under pipe, drainage trenches, French drains and concrete flatwork.
See CA-7.
CA-11 is the 3/4 inch clean washed stone sold alongside CA-7 for bedding, drainage and concrete work.
See 3/4" Crushed Stone.
CA-16 chips are small 3/8 inch chips for permeable paver bedding, drainage around tanks and topping a compacted base.
See CA-16 Chips.
Lime screenings are crushed limestone fines for paver and flagstone bedding and for backfill around pipe. Screenings are the standard bedding layer in Illinois.
See Lime Screenings.
Torpedo sand is coarse washed sand for concrete, leveling and bedding. See Washed Sand.
Mason sand is a finer clean sand for brick and block mortar, paver joints, sandboxes and volleyball courts. See Mason Sand.
Rip rap is heavy broken stone for bank protection, culvert outlets, pond edges and slope armoring.
See RipRap.
Delivery Across DeKalb County
You choose between tons and yards when you order, and each product page has a calculator for sizing the load. Quantities are ordered by the ton or by the yard, and you pick a delivery date at checkout.
A dump truck tips the load in one pile on site. Delivery covers DeKalb, Sycamore, Sandwich, Genoa, Cortland, Hinckley, Malta, Waterman, Kirkland, Kingston, Shabbona, Clare and Esmond.
Ground Conditions Across DeKalb County
Across the Northern Illinois till plains and Rock River country, the ground runs to tight till and loamy prairie soils over dolomite. On the flat ground the water table sits high, and snowmelt and spring rain on frozen ground push water across the surface.
A thin base over that ground shows the failure first: the material pumps, ruts and loses its shape after a wet spring. Fines-bearing CA-6 needs the water kept away from it, which is where a clean stone drainage layer or a screened bedding layer earns its place.
The working season runs from the spring thaw into late fall and is a little shorter than downstate. Frozen ground stops compaction in the winter, so timing matters for any base course.
Winters here bring repeated freeze and thaw and heavy frost action in unbound base and shallow footings. Frost depth is about 42 inches across the northern counties, and the local building department sets it.
Choosing the Right Material
Kane, McHenry and Kendall counties sit on the Chicago lake plain and the northeastern moraines, with heavy silt and clay close to Lake Michigan and clay-rich till inland. DeKalb County's ground is till and prairie soil over dolomite, so the two are not the same.
That heavier clay neighbour ground holds water longer, which changes the drainage layer under a base. Where the ground is tight, CA-7 or CA-11 clean stone moves water that a fines-bearing base would hold.
On DeKalb County ground, CA-6 remains the compacted base for drives and pads, with clean stone or screenings handling water and bedding. Rip rap armors slopes and outlets where water runs hard.
Order Bulk Aggregate for Your DeKalb County Project
Start with the quantity. Each product page has a calculator, and you order by the ton or by the yard once you know the size of the job.
Illinois Rock Supply delivers CA-6, clean stone, sand, topsoil and rip rap across DeKalb County, and you pick your delivery date at checkout. Place your order online when you are ready.