How many yards of concrete in a truck? (And when short-load fees bite)

The short answer to how many yards of concrete in a truck: 8 to 10 cubic yards in a standard ready-mix truck, with 9 or 10 being the load most plants call full. But that number decides more than bragging rights — it decides whether your order counts as a full load or a short one, and short loads are where the fees live. Below I explain why the drum is bigger than the load it carries, how much concrete in a truck actually weighs, what a full load covers, and how the concrete delivery cost changes as your order shrinks.

The standard load: 8–10 cubic yards

Most mixer trucks you will see on a residential job are rated to carry 8–10 yd³, and when people ask how many yards of concrete per truck a plant will send, the dispatch answer is usually “up to 10”. Our concrete calculator plans around the same figure. If your pour needs 11 yards, you are not getting a bigger truck — you are getting a second one, and that has fee consequences I will work through below.

Two things cap the load, and neither is the size of the drum. The first is mixing physics: the drum on a standard truck physically holds about 11–15 yd³, but concrete only mixes properly when it can tumble. The American Concrete Institute’s guidance caps a mixing load at about 63% of the drum’s gross volume — so a 14-yard drum is honestly a 8.8-yard mixer, and the “10-yard truck” is a drum of roughly 15 yards being used the way the standard intends. The second cap is the road: concrete weighs about 4,050 lb a yard, so 10 yards is 40,500 lb of payload. Add a truck that weighs roughly 30,000 lb empty and the rig grosses about 70,500 lb — already close to the 80,000 lb federal gross limit before fuel, water and the driver. Weight, not volume, is the real ceiling.

What a full load covers

A cubic yard covers 81 ft² at 4 inches and 54 ft² at 6 inches. Weights at 4,050 lb per cubic yard.

Put in project terms: a full 10-yard load pours a 20 × 40 ft slab at 4 inches with a little to spare, or two 20 × 20 driveways. Most single residential pours — a driveway, a patio, a garage floor — fit in one truck, which is exactly why plants organise their pricing around the full load.

The smaller trucks: mini-mix and volumetric

Not every delivery rides on a 10-yard truck. Mini-mix trucks carry about 2–6 yd³ and exist precisely for small residential work; because the truck itself is sized for partial loads, mini-mix operators often price small orders without the punishing short-load fee a big plant charges. Volumetric trucks go further: they carry dry ingredients in separate compartments and mix on site, so you pay for what you actually use and the left-over problem disappears. If your pour is 2–3 yards and access is tight, asking local suppliers who runs mini-mix or volumetric trucks is the single best money-saving phone call you can make.

Short-load fees: where small orders get bitten

A plant’s economics are built on full trucks. When your order leaves the drum half empty, the plant still spends the same driver, the same fuel and the same slot in the schedule — so it charges you for the empty space. Most plants set a minimum load of about 4 yd³, and orders below it attract a short-load fee of $50–$150. Two structures are common:

• Flat fee: one charge per short load — say $100 — regardless of whether you ordered 2 yards or 3.5.
• Per missing yard: a charge for every yard below the minimum — at $60 per missing yard, a 2-yard order against a 4-yard minimum pays $120.

The fee is not a scam; it is the plant pricing the empty half of your truck. But do the arithmetic before you try to dodge it. Ordering up to the minimum almost never beats the fee on price alone: on a 3-yard need at $150 a yard with a $100 flat fee, paying the fee totals $650 delivered, while ordering a fourth yard you do not need totals $700. The exception is value, not price — if the extra yard has a genuine home waiting (a shed pad, a walkway strip, extra footings), the fee money turns into concrete instead of evaporating. What actually saves money is combining pours: two neighbours’ small jobs, or your driveway and patio on the same morning, riding in one drum. Always ask which fee structure your plant uses, and what its minimum is, before you finalise the yardage.

What a load actually costs, by size

Here is the concrete delivery cost worked at mid-range October 2026 prices — $150 a yard for the concrete, $100 delivery per truck, a $100 short-load fee under the 4-yard minimum — so you can watch the fee do its work:

Delivered cost by order size at mid-range prices, October 2026. The concrete is $150 a yard in every row — the fees do all the moving.

Study the last row, because it is the trap nobody warns you about. A 12-yard pour does not ride in one truck, so the second truck brings a second delivery fee — and because it carries only 2 yards, it brings its own short-load fee too. Your effective rate climbs back to $175 a yard. The fix is scheduling, not haggling: have the trucks arrive in sequence so the pour never stops, and if your project naturally splits (driveway now, patio later), price the two pours as two honest orders instead of one awkward one.

Is one truck enough? Four real pours

Capacity only matters relative to your job, so here are four everyday pours measured against a 10-yard truck, all computed the way our calculator computes them:

• 20 × 20 ft driveway, 4 in: 4.94 yd³ — half a truck. One delivery, but a short one if your plant’s minimum is above 5 yards; combine it with a walkway pour if you can.
• 24 × 24 ft garage floor, 4 in: 7.11 yd³, or 7.82 yd³ with the 10% waste allowance — one truck, comfortably full, no short-load fee. This is the load size plants are built around.
• House footings, 120 ft run, 16 in wide × 8 in deep: 3.95 yd³ — right on the typical 4-yard minimum line, which is why footing pours so often squeak past the short-load fee.
• 30 × 40 ft basement floor, 4 in: 14.81 yd³ — two trucks, sequenced. The second truck carries about 5 yards, full enough to dodge the short-load fee if the total is split evenly rather than sent as 10 + 4.81.

That last point is worth underlining: when a pour needs two trucks, you choose how the yardage splits between them. Splitting so that no truck runs far below the minimum-load line keeps the second delivery fee the only extra you pay. Dispatchers do this instinctively for regulars; if you are ordering once, ask for it out loud.

Pour-day realities the capacity number creates

A truck is also a clock. Plants work to roughly a 90-minute window from batching to discharge (the ASTM C94 standard the industry runs on), and your included unloading time is typically metered at about five to seven minutes per yard before standby charges of a few dollars a minute begin. A 10-yard load therefore buys you roughly an hour of chute time; a 2-yard load, barely fifteen minutes. This is why I tell everyone the same thing: forms finished, base compacted, screed and tools laid out, and more help than you think you need, all standing ready before the truck turns into the street. Concrete does not wait while you find the wheelbarrow.

Finally, order like the plant batches: quantities are rounded to the nearest quarter or half yard, and the figure you give dispatch should already include your waste allowance — 10% on a typical DIY pour. Run your slab through the calculator first, read off the “with waste” yardage, and that is the number you order. Coming up half a yard short mid-pour means a second truck, a second delivery fee and a cold joint in your slab; coming up half a yard long means a wheelbarrow of leftovers. Only one of those is a real problem.

Sources: truck capacities and the 63% mixing limit per American Concrete Institute (ACI) guidance and mixer-manufacturer ratings; delivery and short-load fee ranges from US supplier pricing checked October 2026, consistent with our Concrete Calculator page; discharge window per ASTM C94. Prices are dated estimates — your plant’s quote is the real one.