Where to Buy Big Rock in South Carolina and What It Costs

Big rock is a landscape and construction material sold by weight or volume at quarries, landscape suppliers, and building material yards across South Carolina

Big rock—also called riprap, boulders, or landscape rock depending on size and use—ranges from roughly 6 inches to several feet across. You buy it by the ton or cubic yard, not by the piece. Prices vary widely based on where you source it, how far it travels, and whether you need delivery. Most suppliers in South Carolina charge between $30 and $80 per ton for material alone, with delivery adding $50 to $200 or more depending on distance and volume.

The material itself comes from quarries that crush and sort stone, or from landscape material recyclers. Some suppliers stock it year-round; others order it seasonally. Delivery is almost always separate from the material cost, and many suppliers require a minimum order—often 5 to 10 tons—before they'll send a truck.

Key Takeaways

• Big rock is priced by the ton or cubic yard, not by individual pieces, and you typically need to order a minimum of 5 to 10 tons for delivery.
• Local quarries and landscape supply yards usually offer the lowest prices because the material doesn't travel far, but you may need to pick it up yourself.
• Delivery costs depend on distance from the supplier and the weight of your order, so getting quotes from multiple yards will show you the real total price.
• Measure your project area and calculate volume before you call, because suppliers need to know how many tons you need to give you an accurate quote.

Finding big rock suppliers near you

Start with quarries in your county or the nearest county. Search online for "[your county] quarry" or "[your county] landscape rock supplier." Quarries are usually the cheapest option because they sell directly from the source and don't mark up for retail overhead. Call ahead—many quarries require you to pick up material yourself, and some only sell to contractors, not homeowners.

Landscape supply yards and garden centers stock big rock in smaller quantities and charge more per ton, but they often deliver and don't require minimum orders as large as quarries do. Home improvement chains like Lowe's and Home Depot carry bagged landscape rock in smaller sizes, but those are not the same as big rock for erosion control or major landscaping projects. Local independent landscape suppliers often have the best combination of price and service for homeowners.

Ask your supplier whether the price includes delivery or whether you're paying for material and trucking separately. Some quote an all-in price; others break it down. Get at least two quotes so you can compare the actual total cost, not just the per-ton price.

How to measure and order the right amount

Measure the length, width, and depth of the area you're covering in feet. Multiply length × width × depth to get cubic feet. Divide by 27 to convert to cubic yards. One cubic yard of big rock weighs roughly 1.3 to 1.5 tons, depending on the stone type and how tightly it's packed.

For example: a driveway edging project 50 feet long, 2 feet wide, and 1 foot deep is 100 cubic feet, or about 3.7 cubic yards, which equals roughly 5 to 6 tons. Tell your supplier the cubic yardage or tonnage, and they'll tell you how many truckloads that is and what it costs.

Overestimate slightly rather than underestimate. It's easier to use leftover rock than to order a second small delivery, which often costs almost as much as the first. Many suppliers will hold material for a few days if you need to adjust your order after the first quote.

Delivery, pickup, and timing

If the supplier delivers, ask how long the truck takes to unload and whether they can place the rock where you need it or if they dump it at the end of your driveway. Some drivers will spread material for an extra fee; others won't. Confirm the delivery window—most give a range of a few hours, not an exact time.

If you're picking up yourself, you'll need a dump truck or a trailer rated for the weight. A standard pickup truck bed can hold roughly 1 to 2 tons safely, depending on the truck's capacity. Overloading damages the vehicle and is unsafe. Ask the supplier how they load material—some use a front-end loader and charge a small fee if you bring your own truck.

Order during spring and early summer if possible. Fall and winter demand is lower, so prices may drop, but weather can delay delivery. Winter weather in South Carolina rarely stops trucks, but heavy rain can make quarry roads impassable for a day or two.

Big rock for different uses

Erosion control and stream banks: Riprap—the largest, most angular stones—is what you need. It locks together and resists water movement. Quarries sell this specifically for that purpose, and it's usually cheaper than "landscape rock" because it's not sorted for appearance.

Driveway edging and borders: Medium-sized rock, 4 to 8 inches across, works well. It's visible enough to define space but not so large that it's hard to place. Landscape suppliers stock this in quantity.

Decorative landscaping: Smaller boulders, 12 to 24 inches, cost more per ton because they're sorted and selected for shape and color. Garden centers and landscape yards specialize in these. They're not cheaper at a quarry because quarries don't sort for appearance.

Ask your supplier what size range is best for your specific project. They can often recommend a size that balances cost and function.

Comparing price and quality

The cheapest quote isn't always the best deal if delivery is expensive or the supplier is far away. A quarry 5 miles away might be cheaper per ton than one 30 miles away, even if the per-ton price is higher. Calculate the total delivered cost, including all fees.

Ask what type of stone you're getting. Granite, limestone, and river rock have different weights, durability, and appearance. Granite is harder and lasts longer but costs more. Limestone is softer and cheaper but can break down over time in wet conditions. River rock is rounded and smooth, which looks good but doesn't lock together as well for erosion control.

Check whether the supplier guarantees the material is clean and free of dirt and clay. Dirty rock can stain concrete or create drainage problems. Most reputable suppliers wash or screen their material, but it's worth asking.

Frequently Asked Questions

Can I buy big rock in smaller quantities without ordering a full truckload?

Some landscape supply yards and garden centers sell by the bag or in small piles, but the per-ton cost is much higher. If you need less than 2 tons, bagged landscape rock from a home improvement store may be cheaper overall. For 5 tons or more, a full delivery from a quarry is almost always the better value.

How do I know if big rock will work for my erosion control project?

Riprap—large, angular stones—is the standard for erosion control on slopes, stream banks, and areas with water flow. Smaller, rounded landscape rock won't hold in place as well. Tell your supplier what you're protecting and how steep the slope is, and they can recommend the right size and type.

What if the supplier's truck can't reach my property?

Ask whether they can dump at the end of your driveway or on the street, and whether you can rent equipment to move it yourself. Some suppliers partner with equipment rental companies. You can also hire a landscaper to move the rock once it's delivered, though that adds labor cost.

Do I need a permit to use big rock on my property?

Most residential landscaping doesn't require a permit, but erosion control work near streams or wetlands may. Contact your county's soil and water conservation office or planning department before ordering if your project is near water or on a steep slope.

How long does big rock last?

Granite and river rock last decades with minimal breakdown. Limestone softens over time, especially in wet climates, and may need replacement in 10 to 15 years. Ask your supplier how long the specific stone you're buying typically lasts in South Carolina's climate.