Buy Fill Dirt in Fontana, CA

California Rock Supply handles gravel and aggregate delivery in Fontana, CA, and we stock the materials local crews ask for by name: Class 2 base, crushed rock, drain rock, sand and soil. Fontana sits on alluvial ground that runs from Top Soil to heavy clay, so most jobs here start with grading and soil, not stone.

Order online, pick your quantity by the ton or yard, and a dump truck brings it to your site.

Materials for Fontana Projects

Grading and bed prep come first on most Fontana jobs, because the native ground is uneven and often expansive. Fill dirt is how you raise a pad or backfill a trench before anything else goes down. Spread topsoil over clay or hardpan so lawns and beds have something to root into, and use garden soil for raised beds and planters.

Once grade is set, base goes down and gets compacted. Class 2 base is the standard California base material, specified by Caltrans as Class 2 aggregate base, and it carries driveways, parking pads and the layer under pavers and slabs. Recycled base rock does the same job, and some suppliers quote the same material as crushed miscellaneous base or CMB.

Washed stone handles water. Drain rock and 3/4 inch drain rock are clean stone with no fines, so water moves through instead of pooling. For surface and finish work, Stone Screenings packs firm for paths, and Natural Pea Gravel or river rock covers beds and borders.

Ground and Conditions in Fontana

Rain here arrives in a few winter storms and atmospheric rivers after a long dry season. It runs off hardscape, hard dry ground and clay fast, so drainage has to be planned before the first storm, not after it.

That clay is the part that catches people out. Expansive clay swells when it gets wet and shrinks and cracks when it dries, which moves anything sitting on it. A compacted Class 2 base over properly prepped subgrade is how you keep a drive or pad stable through that cycle.

Where water needs to leave, drain rock in a trench or behind a wall gives it a path. Stone that carries fines will clog and hold water, which is why clean washed stone is the right call for French drains and drywells.

The long warm dry season suits base and paver work for most of the year. Winter storm days are the main interruption, so plan grading and compaction around them.

Delivery to Fontana and the Surrounding Area

Bulk material arrives by dump truck. Have the drop spot clear and reachable, and know where you want the pile so the driver can place it without blocking a driveway or a gate. If the truck cannot back all the way in, say so at checkout.

Everything is ordered online. Choose your quantity by the ton or yard, and use the calculator if you need to size the load for the area you are covering. Pick your delivery date at checkout.

We deliver in Fontana and across San Bernardino County, including San Bernardino, Ontario, Rancho Cucamonga, Rialto and Victorville.

Order Fill Dirt, Base and Stone for Your Fontana Project

From grading and bed prep to compacted base, drainage stone and decorative cover, California Rock Supply delivers the materials Fontana drives, patios, paths and planting beds are built from. Size your load, choose a delivery date, and place your order online.