About California Rock Supply: Ordering Around the Dry Season

Most people who read about California Rock Supply arrive holding one decision: how much of a particular material to have tipped on the drive, and when. The when matters more in this state than buyers expect, because the calendar here is not a temperature calendar. It is a wet-and-dry one, and it decides whether a base can be compacted at all.

Why 24 materials rather than a short list of driveway gravels

The long dry stretch from late spring into fall is when structural work is possible at all. Clay is firm enough to take a roller, decomposed granite packs instead of turning to paste, and a paver base can be built in lifts, which is why Class 2 Base, bedding sand and path fines are ordered through those months.

Once the storms arrive the order book stops building things and starts moving water: a trench that filled up, a swale that cut a channel through a yard, a bank that slumped after heavy rain on burned ground upslope. That work wants the opposite kind of rock, clean and open like Drain Rock, or weight that runoff cannot shift, which is RipRap. Planting runs on the same clock, and Top Soil and Garden Soil move with it. A catalogue serving this state has to carry both halves of that year, which is the reason the range is as wide as it is.

A catalogue you order from, with no gate to drive through

It is a place to buy bulk aggregate online, without working through a round of phone quotes. You browse the catalogue, size the job with the material calculators, choose an amount and a delivery date on the product page, and enter a ZIP code at checkout, which is where delivery is arranged.

It is not a yard you drive into, and the pages here do not claim ownership of a pit or a plant. What the product pages do carry is the specification that matters at the point of ordering: size, grading and type, so a grade can be checked against a plan or a local quote before anything is booked.

Naming things the way the specs and the yards here name them

Aggregate base is specified locally by the state transportation standard as Class 2 aggregate base in a 3/4 inch or 1-1/2 inch maximum grading, with Class 3 sitting below it as a lower-strength grade. That specification also allows processed reclaimed asphalt and concrete, which is why recycled base rock and crushed miscellaneous base appear on local quote sheets for the same jobs. Those class numbers describe how material is specified around here. They are not a stamp carried by a particular load.

The same goes for the rest of the vocabulary. Path and patio fines are decomposed granite or DG, clean drainage stone is drain rock, angular material is crushed rock, and large rounded stone is cobble. The catalogue uses those names because they are the ones a contractor or a plan set will use, and each product page shows the national grading alongside them.

Choosing the amount, the date and the spot before the truck rolls

A bulk order comes down to three things you control. The quantity, which the calculators convert from your measurements into cubic yards and tons using each product's own published weight. The date, chosen on the product page. And the drop spot, which needs firm, level ground and a clear route in, because the load arrives as one pile where you mark it. The delivery page sets out what the truck needs, and anything awkward about the approach is better raised through contact before the date than on the morning.

Where does the material actually come from, and can I collect it myself?

Should I wait for the dry months to order base rock?

How do I know a product here matches the grade my plan calls for?

Can I put a base material and a surface material on one order?