CA6 is the standard crushed limestone base that’s often used under driveways, patios, and slabs throughout the Plainfield area, and buying it in bulk is the cheapest way to obtain it.
Two Plainfield homeowners can order the exact same 20 tons of CA6 gravel this week, but one of them will pay 200 dollars more. The difference has nothing to do with the rock itself, but rather it comes down to who asked the right questions before making the order.
If you have ever priced out a driveway or a shed pad in Will County, you have run into CA6 on every quote. Buying it in bulk is one of the easiest ways to save real money on a project. These nine tips will help you get quality material at a fair price.
1. Match the Material to Your Project
CA6 gravel is a base material, and it excels in the following settings:
- Driveways
- Patios
- Sidewalks
- Sheds
- Garage slabs
It is less suited to decorative ground cover because the limestone dust gives it a chalky gray look that tracks onto shoes and paws. If you want something walkable for a path, you might consider CA6 for the base and a cleaner stone like CM6 or pea gravel for the top.
2. Compare Quotes From Multiple Sand and Gravel Suppliers
Plainfield buyers can pull quotes from quarries in Joliet, Romeoville, Plano, and the surrounding area, and prices genuinely vary between them. Call at least three sand and gravel suppliers and ask for quotes on the following:
- The per-ton price for CA6
- The delivery fee to your address
- The minimum order quantity
- Whether they quote by the ton or the cubic yard
A ton of compacted CA6 covers noticeably less ground than a loose cubic yard, and mixing up the two is one of the most common ordering misunderstandings homeowners make.
3. Ask About Bulk Gravel Delivery Fees Up Front
Crushed stone is heavy and cheap per ton, so shipping the gravel over often costs as much as the rock itself. The U.S. Geological Survey stresses that construction aggregates carry low unit values, so hauling distance drives the final price more than anything else. When you call about bulk gravel delivery, ask:
- Is the fee flat or calculated per mile?
- What is the truck capacity per load?
- Does a partial load cost the same as a full one?
It’s usually better to get one big 20-ton load from a nearby quarry than two smaller loads from a yard across the county.
4. Time Your Order Around the Construction Season
In northern Illinois, the demand for construction materials peaks between late spring and fall, when builders and road crews are competing for the same trucks.
If it’s possible for your project, place your order in early spring or late fall. This is the best time because it’s when dispatchers have time off and some yards are closed.
If possible, avoid the week after a heavy rain, since saturated material weighs more and you pay by the ton. Typically, the best time to get a good deal and a dry stretch is in April or October.
If you are working with a contractor, you can ask them to combine your material order with another project in the area. This will ultimately result in a substantial reduction in the time spent on the delivery line.
5. Verify the Gradation Meets IDOT Standards
Not every pile labeled CA6 is identical; there can be differences from batch to batch. IDOT runs a formal aggregate gradation control system, and reputable quarries test their stockpiles against it.
When a supplier serves both IDOT and municipal jobs, you should see it as a strong signal that their material is consistent.
IDOT specifications also cap a single lift of CA6 at a nominal 12 inches, which tells you something about how the material is meant to be installed. Ask the yard whether their CA6 is produced to IDOT gradation, especially for a driveway that needs to survive freeze and thaw cycles.
6. Plan Your Gravel Driveway Installation in Layers
A good gravel driveway installation is built in layers rather than a single dump. The process looks like this:
- Spread 3 to 4 inches of material
- Compact it with a plate compactor or roller
- Lightly mist the surface to help the fines bind
- Repeat until you reach your target depth
Proper compaction and a crowned surface for drainage matter as much as the material itself. A driveway that sheds water to the edges will outlast a flat one by years.
7. Look Beyond Quarries to Landscape Material Suppliers
When placing large orders, quarries provide the best prices per ton; however, there is a helpful void filled by landscape material suppliers in the Plainfield, Naperville, and Oswego areas. They often deliver smaller quantities, sell by the yard, and let you pick up a trailer load yourself.
You should also ask if their CA6 is made from new limestone or recycled concrete, since some yards have both. It is usually best to go straight to the quarry or an aggregates-only store for bigger jobs. You should also ask if their CA6 is made from new limestone or recycled concrete, since some yards have both.
8. Track Local Gravel Prices Before Committing
Local gravel prices in the Plainfield area generally range between 20 and 40 dollars per ton delivered, depending on quantity, distance, and season. The Illinois State Geological Survey maintains an inventory of the state’s pits and quarries and notes that large tonnages move at low unit values, which is why small differences per ton add up fast on a 20-ton order. Before you commit, remember to do the following:
- Get quotes in writing
- Ask how long the pricing is held
- Confirm whether fuel surcharges apply
Diesel prices and the amount of work that needs to be done at the quarry can also change prices, so a quote from March might not be valid in June. It’s worthwhile to inquire about the yard’s volume break policy for larger jobs once your order exceeds 15 or 20 tons.
9. Prepare Your Site for the Delivery Truck
A loaded dump truck can weigh over 30 tons, so make sure the delivery route can accommodate the vehicle. Roads with low bridges or unstable roads might not be suitable for this kind of trick. Before delivery day, make sure you do the following:
- Mark exactly where you want the pile dropped
- Check overhead clearance for wires and branches
- Lay plywood if the truck must cross a sidewalk or septic field
That last option saves hours of wheelbarrow work on a long driveway. Have the site clear and someone home, since wait time fees start the moment the truck idles at the curb.
Frequently Asked Questions
What Is CA6 Gravel?
CA6 is an Illinois Department of Transportation designation for crushed coarse aggregate, typically limestone, graded from roughly three-quarters of an inch down to fine dust. The varied size is a key feature because the small rocks lock the larger stones together when compacted, creating a dense, stable base. Around Chicagoland, you will also hear it called the following:
- Grade 8
- Road gravel
- CA6 road mix
Most of it starts as limestone or dolomite, which comprises about 70 percent of the crushed stone produced in the United States. Supply in northern Illinois is rarely a problem.
How Much CA6 Gravel Do I Need?
Suppliers will help you estimate, but it’s always best to walk in with your own figures to ensure suppliers are honest. Find the length and width in feet, decide on the depth when it is packed down, and remember that a cubic yard of CA6 usually weighs about 1.5 tons. About 6 to 7 cubic yards, or 9 to 10 tons, are needed for a driveway that is 10 feet wide and 50 feet long and 4 inches deep.
Add 10 percent for waste and compaction loss. Federal regulations on gravel surfacing emphasize the importance of accurate quantity calculations before ordering, as any discrepancies during the project will result in a second delivery charge.
Is Recycled CA6 Worth Buying?
Many local yards sell recycled CA6 made from crushed concrete instead of virgin limestone. It compacts well, meets the same gradation targets, and typically costs a few dollars less per ton. For a shed pad or a rural driveway, it’s an effective way to bring down costs.
For projects with strict spec requirements, confirm with your engineer or village inspector first. Recycled aggregate still makes up a small share of total supply nationally, but in the Chicago area, it’s widely available and worth a phone call.
Getting the Best Value on CA6 in Plainfield
Buying CA6 gravel in bulk comes down to a short list of construction aggregate tips pointing in the same direction. Know your tonnage before you call, and get quotes from at least three yards. Keep the haul as short as possible, and install the material in compacted lifts so the finished base outlasts whatever sits on top of it.
Fox Landscape Supply has been delivering gravel, stone, sand, and topsoil across the Plainfield area since 2020, covering all of Kendall and Will County, plus the western suburbs up to 75 miles out. Contact us today to book your appointment.
