Fill and Base Material Delivered in Chino Hills, CA

Winter storms hit fast here. Rain sheets off hard dry ground and clay, and it has to go somewhere. California Rock Supply delivers gravel and aggregate in Chino Hills, CA, and the material most jobs start with is Class 2 base. It is the Caltrans-specified aggregate base for driveways, parking pads, and the compacted layer under pavers and slabs.

Order fill first, then base. Build the grade, then compact the surface that carries the load.

Materials for Chino Hills Projects

Most Chino Hills jobs start below grade. You raise the pad, then you build the base. Get that order wrong and the paving above it moves.

Fill Dirt raises grade and backfills. Use it to build up a pad before any base goes down. It is structural fill, placed in lifts and compacted, not a surface material.

Class 2 Base is the layer that carries the load. Contractors here also call it Class II base, Class 2 aggregate base, or base rock. Caltrans specifies it as Class 2 aggregate base, and it goes under driveways, parking pads, and Stone Screenings paths.

Crusher Run binds and compacts where you want a tighter surface. California buyers usually ask for Class 2 base for the same job. Recycled base rock, made from Road Base or asphalt, works the same way under drives and patios.

For the surface, Driveway Gravel tops a compacted base or refreshes an existing drive. Stone Screenings, or DG, packs firm for paths and patios over that same base.

Ground and Conditions in Chino Hills

Soils across the Inland Empire valleys run from Top Soil to clay. Expansive clay shows up in many basins and hills. It swells when wet and shrinks and cracks when dry.

That movement is why an under-built base fails. A thin base over swelling clay lets a slab or paver lift and crack. Compact Class 2 base in lifts to the depth the paving calls for, and the clay stays put beneath it.

Water is the other half. Rain arrives in a few winter storms after a long dry season. It runs off hardscape and hard ground fast. Drain rock and 3/4 inch drain rock carry it away in French drains and behind retaining walls. Clean stone, no fines, so water moves through.

On burned hillsides and canyons, the first heavy storms bring debris flows. Rip rap armors slopes, creek banks, and culvert outlets against that runoff.

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

Delivery to Chino Hills and the Surrounding Area

Order online and pick your quantity. Bulk material sells by the ton or the cubic yard. Measure your pad, multiply by depth, then convert. If the numbers get awkward, size the order to the job and let the truck bring it.

Delivery drops bulk loads at the site. Have the pad or driveway clear so the driver can place the pile where you want to shovel from. Chino Hills sits in San Bernardino County, and we deliver across the county, including San Bernardino, Fontana, Ontario, Rancho Cucamonga, and Victorville.

Questions from Chino Hills Buyers

What is the best base under pavers in Chino Hills?

Class 2 base. It is the Caltrans-specified aggregate base, and local crews also call it Class II base or base rock. Place it over compacted fill, then compact it in lifts to the depth the paver system requires. Bury it deep enough and the expansive clay beneath it stops moving your pavers.

Do you supply contractors working in Chino Hills?

Yes. Contractors order fill dirt, Class 2 base, drain rock, and decorative stone by the ton for jobs across San Bernardino County, including Chino Hills. Order online, set the quantity, and pick your delivery. Bulk loads go straight to the site so your crew is not waiting on a yard run.

Order Fill and Class 2 Base in Chino Hills

Start with fill dirt to raise the grade, then Class 2 base to carry the load. California Rock Supply delivers both, plus the drain rock and decorative stone that finish the job. Order online and pick your delivery.