What is the difference between crushed stone and Natural Pea Gravel?

Crushed stone is angular, with rough faces that lock together when compacted, which is why 3/4 inch crushed rock and similar sizes work in drainage beds and construction entrances. Natural Pea Gravel is small rounded stone, smooth and loose underfoot. It suits play areas, walkways and bedding. Choose crushed stone where you want material to knit together; choose Natural Pea Gravel where you want a walkable, decorative surface.

Should I order material by the ton or by the yard?

Either works, and the choice is mostly about how you think about the job. Tons measure weight, yards measure volume. The calculator converts between them for the material you pick, so you can order in whichever unit you prefer and get the right amount. Set the quantity at checkout and pick your delivery date.

Which stone is best for drainage in San Luis Obispo County?

Clean washed stone is the right call, and 3/4 inch drain rock is the common pick. It has no fines, so water moves through it freely, which suits French drains, drainage trenches and drainage layers. For finer work, 3/8 inch crushed rock handles pipe bedding, and #67 and #89 stone fit tighter spots. For heavy drainage, #4 crushed stone and railroad ballast take over.

San Luis Obispo County, CA Aggregate and Rock Delivery

What do you order for a driveway, a paver patio or a drainage trench here? Start with gravel, stone and aggregate delivery in San Luis Obispo County, CA from California Rock Supply. Most jobs in this county begin with Class 2 base, the standard California base material under drives, pads and pavers. Soils change over short distances, so sandy ground near the shoreline and heavy clay in the Coast Range valleys ask for different prep.

Delivery across San Luis Obispo County

You order online, size the load by the ton or by the yard, and pick a delivery date at checkout. A dump truck then brings the material to your site and drops it where you need it. Deliveries reach San Luis Obispo, Atascadero, Arroyo Grande, Nipomo, Los Osos, Grover Beach, Morro Bay, Templeton, Pismo Beach, Oceano, Cambria, San Miguel, Cayucos and Shandon.

Use the calculator to figure the amount you need. Choose the material, then set the quantity in tons or yards and checkout handles the rest.

Materials delivered in San Luis Obispo County

Materials are easiest to sort by size, from the coarsest rock down to the finest sand and soil. Here is what each one does on a local job.

Class 2 base is the material most jobs start with, and it is also sold as Class II base rock, class 2 aggregate base or base rock. California specifies aggregate base under Caltrans Standard Specifications Section 26 as Class 2 or Class 3, in a 3/4 inch or 1-1/2 inch maximum grading. Class 2 is the higher-strength grade and the common base under drives, pads and pavers; Class 3 is a lower-strength grade.

The spec also allows processed reclaimed asphalt and concrete, so recycled Class 2 base is widely sold and works the same way under drives, patios and slabs. Some suppliers call that crushed miscellaneous base, or CMB. For a path or patio surface, Stone Screenings (DG) packs firm. For clean drainage, order drain rock or 3/4 inch drain rock.

Ground conditions across San Luis Obispo County

The working season shapes the schedule more than anything else. The dry stretch from late spring into fall is the main window for base, driveway and paver work. Summer fog is common near the shore, but it is winter rain and saturated clay that hold jobs up, not cool mornings.

Most rain falls from late fall to spring, much of it in a few large winter storms and atmospheric rivers. Sandy ground soaks it up quickly. Clay soils sit on it or run it off, so plan drainage before the wet months.

Heavy clay soils that crack when dry and swell when wet are extensive in the Coast Range valleys and hills, while sandy dune and beach soils sit along parts of the shoreline. On clay, compact the base in lifts and keep water moving away from the slab. On slopes, winter storms bring hillside runoff and slides, and intense rain on recently burned slopes can move debris. Wave and storm erosion works on sea cliffs and bluffs along the shoreline. Riprap and cobble placed at the bottom of a slope or a creek bank slow that runoff.

Choosing the right material

Ground next door is not always your ground. Santa Barbara County and Monterey County share this county's Coast and Coast Ranges zone, where soils change over short distances between sandy shoreline ground and heavy clay in the valleys and hills. The base and drainage choices there look much like yours: Class 2 base under drives and pads, drain rock in trenches.

Kern County spans more than one zone, from Central Valley floor to deserts and mountains, so base and drainage needs shift with elevation and soil in ways this county's coastal ground does not.

Start every job with Class 2 base and add clean stone where water needs to move. On heavy clay, a drainage layer matters more than on sand. On slopes and creek banks, armoring matters more than base.

Order Class 2 Base, Stone and Sand for Your San Luis Obispo County Job

California Rock Supply delivers Class 2 base, drain rock, Stone Screenings, sand, soil and mulch across San Luis Obispo County, from San Luis Obispo and Atascadero to Nipomo, Cambria and Shandon. Pick your material, size the load with the calculator, and choose a delivery date at checkout. Place your order online and get the material dropped at your site.

Class 2 Base, Sand and Gravel Delivery in San Luis Obispo County, CA