Drain Rock in Kansas
At a Kansas terrace or waterway drainage area, Drain Rock helps preserve open space in the aggregate after flash rain reaches the ground.
- Size: 3/4 inch to 1-1/2 inch
- Grading: Washed to remove fines and dust
- Type: Rounded or angular varieties
From $378.00 for 1 ton, delivery included
Larger loads cost less per ton: 500 tons is $20,595.00 ($41.19 per ton). Pick any quantity below for a delivered price.
Free delivery included
Free delivery anywhere in Kansas
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Weekday delivery, earliest Sep 28
“A new French drain behind the barn near Cottonwood Falls finally solved our spring pooling problem. Three tons of drain rock handled the whole run, and the low spot has stayed dry through two wet seasons since.”
Franklin X. · Verified Buyer
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Everything You Need to Know About Drain Rock
Size and Grading
- Size
- 3/4 inch to 1-1/2 inch
- Grading
- Washed to remove fines and dust
- Type
- Rounded or angular varieties
Terrace and waterway work has to account for the quick runoff that can follow a wet spring or summer storm in Kansas. Drain Rock is clean aggregate prepared without the fines and dust that can block its internal gaps. Those gaps provide a route through the rock for water in drainage applications, including retaining-wall backfill, French drains, and septic leach fields.
Select angular Drain Rock for a drainage layer carrying the weight of backfill, as its pieces fit together and help hold the open arrangement. Rounded material can be used where the drainage stone remains visible and a natural look is preferred. Keep the rock layer distinct from expansive eastern clay or looser western ground during placement, so soil does not occupy the spaces intended for drainage.
Quickly Calculate How Much You Need
Material: Drain Rock
How to Measure
Measure the length and width of your project area in feet
Decide on depth in inches (2" for landscaping, 4" for driveways)
Enter the values above and we'll calculate the tonnage you need
Need help figuring out the right amount? We can help!
Call or text us at our contact form and we'll help you calculate the right quantity for your project.
Not sure how much you need? The River Rock Calculator has depth guides, coverage charts and worked examples for this material.
Common Uses
French Drain Systems
French drains use drain rock as the free-draining material around the line. The washed stone leaves open paths that carry water away from footings, basements, and low spots, helping limit water-related damage.
Septic & Leach Field Construction
A septic leach field or drain field needs a rock drainage layer for wastewater to infiltrate. Clean, uniformly sized drain rock is used where health department requirements apply to these systems.
Retaining Wall Backfill
Retaining-wall backfill needs a way to release water before pressure builds against the wall. Drain rock leaves open channels in the backfill so water can move out instead of creating hydrostatic pressure that can damage the wall.
Foundation Drainage
Place drain rock around a foundation to move groundwater clear of basement walls and footings. A perimeter drain helps reduce moisture entry and hydrostatic pressure associated with cracking and structural damage.
Why Choose Drain Rock
Water Movement
With fines and dust washed away, drain rock has open voids that let water travel through the material. That open structure supports drainage without blocked flow.
Long-Term Performance
Unlike rounded aggregate that may settle and tighten under weight, angular drain rock keeps spaces between the pieces. Those spaces help preserve water flow through the drainage system for decades.
Washed and Sized
Washed drain rock is graded for drainage installations that call for engineering specifications. It works with perforated pipe, drainage fabric, and related drainage-system components.
Structural Protection
Placing drain rock to carry water away from foundations, retaining walls, and structures helps limit moisture damage and hydrostatic pressure. Both can lead to costly structural repairs.
Frequently Asked Questions About Drain Rock
Customer Reviews
Dry well solved our puddle problem
Three tons of drain rock went in for a dry well we dug at the low corner of the yard where water sat for days after every downpour, ordered through Kansas Rock Supply after a neighbor recommended them. Filled the pit, wrapped it in fabric, and topped it with soil like the landscaper suggested. Two heavy rains since and the water disappears within an hour instead of sitting for a week.
Jolene K. · Alma, KS · Verified Buyer
Solid drainage, just came in wet
We dug a French drain the whole length of the walkout basement wall after two summers of water finding its way in through the block, and it took about seven tons of drain rock to fill the trench once the pipe and fabric were in. The stone is exactly what a drain needs, clean with almost no fines to clog anything. The only complaint is the load showed up soaked through, heavier than expected, and it took an extra day to drain out enough before we could handle it with a shovel. Basement's been through one full rainy season since and hasn't taken on a drop of water.
Theo N. · Louisburg, KS · Verified Buyer
Retaining wall drains the way it should
Backfilled behind a new retaining wall along the sloped part of the yard with about five tons of drain rock before the wall guy closed it up with soil and sod. No standing water against the wall even after the heavy spring rains we got this year, and the wall hasn't bulged or shifted an inch since it went in last fall.
Ray M. · Holton, KS · Verified Buyer
Spring Pooling Problem Finally Solved
A new French drain behind the barn near Cottonwood Falls finally solved our spring pooling problem. Three tons of drain rock handled the whole run, and the low spot has stayed dry through two wet seasons since.
Franklin X. · Cottonwood Falls, KS · Verified Buyer
Downspouts finally drain away from the house
Ran drain rock under three downspouts that used to dump straight against the foundation and turn that whole side of the yard to mud every time it rained. Used about two tons total across all three spots, tucked under splash blocks. Yard stays dry now within minutes of a storm passing instead of staying soggy for two days after.
Cassandra P. · Yates Center, KS · Verified Buyer
Drain Rock has 5 verified customer reviews with an average rating of 4.8 out of 5.
