What is the best base material for a patio in Washington County?

Base rock gives you a 1 inch dense-graded mix of crushed stone and fines that compacts firm. Set your patio bedding on top of that. Screenings are the usual choice for the bedding layer under pavers and flagstone.

Can I order material for a commercial or contractor job?

Yes. Order online the same way, then size the load by the ton or the yard and use the calculator for the quantity. Choose your delivery date at checkout. A dump truck brings the material to your site, whether it is a farm lane, a commercial pad or a subdivision job.

When is the best time of year to order base material in Washington County?

Spring is the wettest stretch, and storms raise creeks quickly, so basin ground stays wet and low spots slow work. Summer and fall give you drier ground for grading and compaction. Midwinter freezes also stop work, so plan the delivery around your site conditions.

Gravel, Soil and Stone for Washington County, MO

Storm runoff moves fast here. Rocky slopes shed water into narrow valleys and creeks, and upland ground drains straight down through sinkholes and cracks in the bedrock. That shapes what you put on the ground. Missouri Rock Supply delivers gravel, stone and aggregate in Washington County, MO, and base rock is the material most jobs start with.

Delivery across Washington County

Order online and pick a delivery date at checkout. Size the load by the ton or the yard, then use the calculator to match the quantity to your area. A dump truck brings bulk material to your site.

We cover Potosi, Irondale, Mineral Point, Caledonia, Belgrade, Cadet and Richwoods. Deliveries reach town lots, farm lanes and rural tracts across the county.

Materials delivered in Washington County

Base rock is the standard Missouri base material, and the local name covers it. Type 1 and Type 5 are 1 inch dense-graded mixes of crushed stone and fines, with Type 5 also capping the finest dust fraction. Type 7 is a coarser 1-1/2 inch grade. You order it for driveways, parking pads, shed bases and farm lanes.

Ground conditions across Washington County

This county spans two ground zones. Around Potosi, Irondale, Mineral Point and Belgrade you get cherty, rocky clay over limestone and dolomite, thin and stony on slopes and ridges. At Caledonia, soils turn rocky and thin on steep knobs of granite and rhyolite.

Spring is the wettest stretch. Storms raise creeks quickly, and chert and rock in the ground slow digging more often than mud does. January nights average below freezing and days usually thaw, so freeze-thaw cycles are frequent. Frost depth runs shallower than northern Missouri, and the local building code sets footing depth.

Choosing the right material

Across the line in Jefferson County, the ground is silty loess on the ridgetops over cherty clay and limestone, with deep silt, sand and clay in the river bottoms. Sinkholes form where limestone or dolomite lies close to the surface. That softer ground takes a heavier, compacted base before a drive or slab goes down.

St. Francois County sits in the same knobs and basins zone as Caledonia. The ground is similar, so typical projects compare closely: base rock on the flats, drainage stone where runoff gathers.

Iron County spans the knobs and basins and the Ozark Plateau, the same two zones this county covers. Material choices carry over, with drainage sized to how fast your ground sheds water.

Order aggregate delivery for your Washington County job

Missouri Rock Supply covers Washington County from Potosi and Irondale to Mineral Point, Caledonia, Belgrade, Cadet and Richwoods. Choose your material, set the quantity with the calculator, and pick a delivery date at checkout. Start your order online.

Bulk Aggregate Delivery Across Washington County, MO