3/8 Inch Crushed Rock, Stone and Soil Delivery in National City, CA

If you need gravel and aggregate delivery in National City, CA, California Rock Supply can help. The ground here runs from sandy loam to clay, and the clay swells when it gets wet, so base depth matters more than most people expect. Class 2 base is the standard California base material, and it belongs under any driveway or slab you want to hold up.

Drainage is the other half of the job. Water moves off hard ground fast in a winter storm, and it has to go somewhere.

Materials for National City Projects

Most of the drainage work in this area comes down to washed stone with no fines. Clean stone lets water pass through instead of trapping it, so a French drain, a drywell or a downspout run all depend on the right size. Sizes run from coarse down to fine, and each one has a job.

Under all of that sits Class 2 base, also called Class II base rock or base rock. It is specified as Caltrans Class 2 aggregate base, and it carries driveways, parking pads and the compacted layer under pavers and slabs. Recycled base rock made from Road Base or asphalt does the same work, and Caltrans allows processed reclaimed material in aggregate base.

Some suppliers here also sell crushed miscellaneous base, or CMB, for drive and pad subgrade. Where you want a binding, compacting material, crusher run is an option, though most California buyers ask for Class 2 base for the same job. On top, driveway gravel surfaces an existing drive, and walkway gravel gives paths a finer, walkable finish.

Sand, soil and decorative stone

Mason sand handles brick and block work, paver joints and play areas, while washed sand is the leveling and bedding sand under slabs. For planting, topsoil rebuilds lawns and beds over clay or sandy native ground, and garden soil fills raised beds.

For decorative work, river cobble and large river rock build dry creek beds and borders, Natural Pea Gravel suits play areas and bedding, and Stone Screenings, often just called DG, packs firm for paths and patios. RipRap armors slopes and culvert outlets against storm runoff.

Ground and Conditions in National City

The warm, dry season here is long, and that suits base and paver work most of the year. Winter storm days are the main interruption, so time a delivery around the forecast rather than against it.

The clay is the thing to plan for. Expansive clay swells when it gets wet and shrinks and cracks as it dries, and that movement carries straight up into slabs and paving. Digging out enough depth and compacting Class 2 base in lifts gives the paving something stable to sit on.

Water is the other issue. Rain arrives in a few winter storms and atmospheric rivers after a long dry spell, and it runs off hardscape, dry ground and clay fast. A drainage layer of clean stone under a downspout run or behind a retaining wall gives that water a path instead of a puddle.

Delivery to National City and the Surrounding Area

Order online and choose your quantity by the ton or by the cubic yard, whichever way you bid the job. Bulk delivery to a site in National City is straightforward, but the drop point matters. Think about gate width, overhead lines and where the truck can safely tip before you schedule.

We deliver across San Diego County, including San Diego, Chula Vista, Oceanside, Escondido and Carlsbad. Lead time depends on material and on how busy the schedule is, so it pays to order once your subgrade is ready rather than before.

Order Gravel and Aggregate Delivery in National City

California Rock Supply delivers Class 2 base, washed stone, sand, soil and decorative rock across National City and San Diego County. Whether you are bedding a drain line or building a driveway from the subgrade up, we can get the material to your site. Place your order online when you are ready to start.