Buying Asphalt Direct From a Plant in California

An asphalt plant — a hot plant, in the trade — makes hot mix for paving, and many are owned by a paving contractor or a materials company that runs the plant to supply its own crews first. Whether it will load anyone else's truck is a business decision the plant makes, and it is not in any public record. So every plant page here says one of four things: sells to outside contractors, limited outside sales, captive (supplies its own work only), or unconfirmed, which means nobody has asked yet — not that the answer is no.

Selling to outside contractors and selling to a homeowner in a pickup are not the same thing. A plant set up for contractor accounts may want an account application, proof of insurance, or payment terms before it loads anybody, and some will not load small vehicles at all. Where we have asked a plant about small loads, its page says so.

Ask about the minimum and any small-load fee. Plants run to fill dump trucks, and a one-ton sale ties up the scale and the loader the same way a fifteen-ton one does. Many plants set a minimum order or add a fee under a certain tonnage; where a plant has told us its minimum, it is on the plant's page.

Check what your truck can carry. A ton of hot mix is 2,000 pounds, more than many half-ton pickups are rated to haul. Look up the payload on the door-jamb sticker, and remember a trailer's rating and its hitch are separate limits. The plant weighs you in and out, so the ticket will show exactly what you carried.

Prepare the bed. Hot mix sticks to a dry steel or plastic bed. Ask the plant which release agent it allows — diesel softens the asphalt binder, and many plants and agencies do not allow it. Bring a tarp: mix loses heat fast in an open bed, and a load that cools before it is compacted will not bond or hold.

Be ready to place it. Hot mix leaves the plant at around 300°F and has to be spread and rolled while it is still hot, so have the base dug out and compacted, the tack coat down if you are using one, and the tamper or plate compactor on site before you pick up. Plan to be placing within about an hour. For a single pothole, a bag of cold patch from a building supply store is usually the practical choice; hot mix is for a patch big enough to use most of what you buy.

Millings — also called grindings or RAP, reclaimed asphalt pavement — are old asphalt ground off a road. Many plants run them back into new hot mix, and some sell them on their own as a low-cost surface for rural driveways, yards and farm roads, or as base under new paving. They compact into a firm surface but are not the same as new hot mix: they are loose until rolled and do not seal the way fresh asphalt does.

Some plants also take old asphalt in, from paving crews and from anyone who has torn out a driveway, as feedstock for recycling. Whether a plant takes loads in, what it charges for them and whether it sells millings back out all vary plant to plant, and change with how much it has on hand. Where we have asked, the plant's page says whether it takes old asphalt and whether it sells millings. Rules on where millings can be placed vary locally, so check with your county before using them near a creek or drainage.

Plants price hot mix by the ton, and the quote moves with the mix type, the binder grade, the quantity and the month — the liquid asphalt in the mix follows oil prices. Caltrans publishes a monthly statewide price index for paving asphalt, which it uses to adjust payment on state contracts when binder prices move; it shows the direction of the market, but it is a price for binder, not for a ton of mix.

Our asphalt price per ton guide, last reviewed in August 2026, puts hot mix at about $90 to $160 a ton at the plant nationally, before trucking and tax, and lists the sources behind that range. California quotes vary by market, so ask the plant for its current price for your mix and tonnage. On a small order, a small-load fee can matter more than the per-ton price.

A dump-truck load is priced the same way: the tons on the ticket times the plant's price, plus trucking if the plant or a hauler delivers. A 10-wheeler usually hauls around 12 to 15 tons of hot mix and a semi end dump or bottom dump around 20 to 25, depending on axles and weight limits. The asphalt tonnage calculator turns an area and thickness into tons, and the trucking calculator works out how many trucks keep a paver moving.

At most plants you check in at the scale house with your order or account, the empty truck is weighed, and it pulls under the silo to load. It is weighed again on the way out, and you get a ticket with the mix and the net tons — keep it, because the job and the invoice go by it. Follow the plant's site rules: where to wait, whether to stay in the cab under the silo, and where to tarp.

Trucks load in the order they arrive unless you have a set time, and early morning is usually the busiest stretch, when contractors' trucks line up for the day's first loads. Ask when you call what time a small load will wait least.