Drain Rock in Louisiana
For Louisiana drainage work in wet gumbo clay, Drain Rock maintains clear space within drainage fill behind retaining walls.
- Size: 3/4 inch to 1-1/2 inch
- Grading: Washed to remove fines and dust
- Type: Rounded or angular varieties
From $386.00 for 1 ton, delivery included
Larger loads cost less per ton: 500 tons is $24,595.00 ($49.19 per ton). Pick any quantity below for a delivered price.
Free delivery included
Free delivery anywhere in Louisiana
Pick a delivery date
Weekday delivery, earliest Sep 25
“Three tons of Drain Rock went behind our French drain out past Homer, and the low corner of the yard hasn't held standing water since. Clean stone, no fines washing out, and it packed in easy alongside the pipe.”
Brigitte N. · 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
Heavy rain and a high water table can keep Louisiana gumbo clay wet around a wall or other below-grade work. Drain Rock provides the clean aggregate layer where collected water can travel instead of remaining against the backfill. Its pieces are prepared without the fine material that would occupy the gaps needed for drainage.
Use the angular variety where soil and backfill will bear on the drainage layer, such as behind a retaining wall. Its shape helps the rock hold its open arrangement under that weight. Rounded Drain Rock is suited to visible drainage details where a natural stone appearance is preferred. Keep the rock confined to its drainage role so the water path remains clear in wet conditions.
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
For French drains, drain rock forms the free-draining layer that moves water through the trench instead of letting it collect at foundations, basements, or low spots. That matters on Louisiana sites where high water tables and gumbo clay can keep a base wet.
Septic & Leach Field Construction
For wastewater infiltration, septic drain fields and leach fields need a drainage layer of drain rock. The stone's clean, uniform gradation is appropriate for health department requirements.
Retaining Wall Backfill
A wall needs a free-draining backfill layer to avoid water pressure collecting behind it. Drain rock gives water a route through the backfill, helping limit the hydrostatic pressure that can damage a retaining wall.
Foundation Drainage
Set drain rock along the foundation edge to carry groundwater away from walls and footings. In wet ground and gumbo clay, this perimeter layer helps limit water intrusion and pressure that can lead to cracking or structural damage.
Why Choose Drain Rock
Maximum Water Flow
Washed drain rock contains minimal fines and dust, leaving open spaces between the stones for water movement. Those voids let a drainage system carry water freely from the start.
Long-Term Performance
Under load, the angular pieces of drain rock retain open voids instead of settling and packing together like rounded aggregate can. Those openings keep the drainage route available over time.
Clean & Specification-Grade
Washed, graded drain rock is prepared for engineered drainage work. It fits with perforated pipe, drainage fabric, and the remaining parts of the system.
Structural Protection
Drain rock carries water off from structures, including foundations and retaining walls. That limits the moisture damage and hydrostatic pressure behind costly structural repairs.
Frequently Asked Questions About Drain Rock
Customer Reviews
Retaining wall drainage did its job
Backfilled behind a small retaining wall at the edge of our yard outside Oak Grove with three tons of drain rock before the wall went up against the slope. Keeps water from building up pressure behind the block, which is exactly what the mason recommended after our old wall bulged and cracked years ago. A year of Delta rains later and this one hasn't budged or bowed at all.
Delphine P. · Oak Grove, LA · Verified Buyer
Low corner finally drains after storms
Three tons of Drain Rock went behind our French drain out past Homer, and the low corner of the yard hasn't held standing water since. Clean stone, no fines washing out, and it packed in easy alongside the pipe.
Brigitte N. · Homer, LA · Verified Buyer
Carport Finally Stays Dry After Storms
Our carport used to pond up ankle deep every time a storm rolled through, so we trenched a French drain along the low side and filled it with two tons of drain rock. Louisiana Rock Supply had it delivered within two days. The carport floor stays dry now even during the heavier spring storms, and the ditch out front never backs up onto the slab anymore.
Curtis O. · Farmerville, LA · Verified Buyer
Fabric tore, but the wall held
Our retaining wall behind the shop in Tallulah had started bulging at the base before we finally got around to fixing the drainage problem behind it, so there was real money on the line if this didn't work. Wrapped the drain rock in landscape fabric like the guy at Louisiana Rock Supply suggested, but a couple of the sharper edges tore right through it while we were tamping it into place, so I had to double up a second layer over the worst spots. Wall's holding steady now that water isn't building up behind it, and I'm just glad we caught the bulge before it got any worse.
Ellis Q. · Tallulah, LA · Verified Buyer
Drain Rock has 4 verified customer reviews with an average rating of 4.8 out of 5.


