Crushed Stone, Sand and Gravel in San Bernardino, CA

California Rock Supply handles gravel and aggregate delivery in San Bernardino, CA. Most of the year is warm and dry here, so base and driveway work can run almost any week you want. Class 2 base is the material most local drives and pads are built on. Winter storm days are the main interruption, so plan the drop around them.

You order online, size the load, and a dump truck brings it to the site.

Materials for San Bernardino Projects

Driveways and parking pads start with base. Class 2 base, also called Class II base or Class 2 aggregate base, is the standard California material, specified by Caltrans as Class 2 aggregate base. It compacts hard and carries the load under pavers, slabs and Stone Screenings paths. Order it at Class 2 Base.

Recycled base rock and crushed miscellaneous base, or CMB, are recycled Class 2 base names some suppliers use for the same subgrade job. Caltrans allows processed reclaimed asphalt and concrete in aggregate base. Crusher run is the other option where you want a binding, compacting material; California buyers more often ask for Class 2 base for the same work. See Crusher Run.

Once the base is compacted, the surface goes on top. Driveway gravel tops an existing drive or a finished base, and walkway gravel gives paths a finer, walkable surface.

• Driveway Gravel for drive surfacing.
• Walkway Gravel for paths and garden walks.
• Stone Screenings, or DG, for paths and patios that pack firm.

Washed stone handles water and concrete work. 3/4 inch drain rock, also sold as #57 stone, is clean stone with no fines, so water moves through it in French drains and drainage trenches. 3/4 inch crushed rock works in drainage beds, drive surfacing and construction entrances. Smaller sizes like #67 Stone and #89 Crushed Stone fit pipe bedding and paver joints.

Sand, soil and decorative stone round out most orders. Washed sand beds and levels under slabs, mason sand sets brick and block and fills paver joints, and topsoil rebuilds lawns and beds. River cobble and Natural Pea Gravel cover beds, borders and dry creek runs. Rip rap, also called rock slope protection, armors slopes and culvert outlets against storm runoff.

Ground and Conditions in San Bernardino

Rain here arrives in a few winter storms and atmospheric rivers after a long dry season. It hits hard dry ground and hardscape and runs off fast, so where that water goes matters as much as what you put down.

Soils across the Inland Empire valleys run from sandy loam to clay, and expansive clay is common in the basins and hills. That clay swells when wet and shrinks and cracks when dry, which moves anything sitting on top of it. Wetting it under a slab or a paved drive is what causes the trouble.

The practical answer is a compacted base that spreads the load and a drainage layer that gives water somewhere to go. Class 2 base compacted in lifts is the usual subgrade under drives, pads and pavers. Clean drain rock handles the water, in French drains, drywells, downspout runs and behind retaining walls.

Above San Bernardino, burned hillsides and canyons send debris flows when the first heavy storms hit, and hillside runoff causes slope failures through the winter. Rip rap at culvert outlets and on exposed slopes slows that water before it cuts. The long dry season suits base and paver work most of the year; winter storm days are the main interruption.

Delivery to San Bernardino and the Surrounding Area

Bulk material arrives by dump truck and is tipped at the site. Have the drop spot clear and reachable before the truck gets there. A firm, level area close to where the material is going saves you moving it twice.

You order online, choose your quantity by the ton or the yard, and use the calculator to size the load. Pick a delivery date at checkout and the load comes to your address.

Coverage runs across San Bernardino County, including Fontana, Ontario, Rancho Cucamonga, Victorville and Rialto. If your project is in one of those places, the same online ordering and delivery apply.

Order Base, Gravel and Sand in San Bernardino

California Rock Supply delivers Class 2 base, driveway gravel, drain rock, sand, topsoil and decorative stone for drives, parking pads, paver bases, drainage and landscape work across San Bernardino. Choose your material, size the load with the calculator, and set a delivery date at checkout to get your order on the way.