Gravel Dump Truck Calculator
How this is calculated
Formula: tons ÷ 12 tons per standard dump truck (tandem-axle: 10–14 ton payload)
| Input | Value | Unit |
|---|---|---|
| Total gravel needed | 20 | tons |
Labor estimate loading…
A standard tandem-axle dump truck carries 10–14 tons of gravel per load. The calculator divides your total tonnage by a 12-ton midpoint payload to estimate how many truck deliveries you need, then prices each haul at the going delivery rate.
- Determine per-truck payload
Standard tandem-axle dump truck payload = 12 tons (midpoint of 10–14 ton range)Single-axle trucks carry 5–7 tons; tri-axle trucks carry 15–18 tons. Payload depends on axle configuration and GVWR per FHWA bridge formula. - Calculate number of loads
Loads = ceil(totalTons ÷ 12) = ceil(20 ÷ 12) = 2 truckloadsAlways round up — a partial load still requires a full truck dispatch and delivery fee. - Estimate delivery cost per load
Delivery per load = $75–$150 (varies by distance and region)Most quarries include free delivery within 10–15 miles. Beyond that, add $5–$10 per additional mile. - Calculate total delivery cost
Total = loads × delivery rate = 2 × $112.50 = $225Material cost (gravel itself) is separate — typically $15–$75 per ton depending on type and source.
What else you'll need
- Measure area dimensions in feet, depth in inches — Convert depth to feet (÷ 12) before calculating — 4 inches = 0.333 ft
- Confirm truck payload limit with hauler — Tri-axle = 22–26 tons typical; tandem = 13–16 tons; overweight surcharges start at $150
- Check site access width and overhead clearance — Tri-axle needs 10-ft gate width and 14-ft vertical clearance to raise the bed
- Add 10–15% buffer to total cubic yards — Accounts for 10–15% subgrade irregularities and 5–8% compaction loss on loose-dumped material
- Verify gravel type weight per cubic yard — Ranges from 1.35 tons (pea gravel) to 1.6 tons (crusher run) — affects loads per truck
Example project costs
Small Job (10 tons)
total tons: 10
| Materials | $200–$500 |
| Labor | $300–$600 |
| Misc (permits, disposal, prep) | $75–$250 |
| Total | $575–$1350 |
Driveway (25 tons)
total tons: 25
| Materials | $500–$1000 |
| Labor | $500–$1000 |
| Misc (permits, disposal, prep) | $75–$250 |
| Total | $1075–$2250 |
Large Project (50 tons)
total tons: 50
| Materials | $800–$1500 |
| Labor | $700–$1400 |
| Misc (permits, disposal, prep) | $75–$250 |
| Total | $1575–$3150 |
Dump Truck Types for Gravel Delivery
| Option | Pros & Cons | Best For |
|---|---|---|
| Single-Axle (5–7 tons) | Smallest footprint, fits narrow driveways, lowest weight — highest per-ton delivery cost | Tight residential access, small projects under 10 tons |
| Tandem-Axle (12–15 tons) | Most common, good balance of capacity and maneuverability | Standard residential driveways and landscaping projects |
| Tri-Axle (18–22 tons) | Best per-ton delivery value, needs wide firm access | Large driveways, commercial sites, projects over 20 tons |
| Transfer (24–28 tons) | Maximum capacity, lowest per-ton cost, requires staging area | New construction, large commercial, 50+ ton projects |
Pro tips
A 'full' 10-wheel dump truck holds 10–14 cubic yards but payload caps at 22–26 tons. Gravel weighs 1.4 tons/yard. 14 Yards = 19.6 tons. Usually under the 22-ton limit. Overweight fees run $150–$500 per load. A tandem-axle truck maxes out at 15–18 tons.
Loose-dumped gravel compacts 20–30% after roller or traffic settling. A 6-inch gravel base requires 7.5–8 inches of loose material to finish at 6 inches. For every 5 truck loads calculated. Order 6 to hit your compacted target depth. Plate compactor rental at $80–$150/day handles 500–800 sq ft per hour in 2-inch lifts.
Budgeting for the full project? Estimate costs with our Gravel Cost Calculator.
Need to price this step too? Use our Pea Gravel Cost Calculator to get an accurate estimate.
A standard tri-axle needs 10-ft width and 14-ft overhead clearance to dump safely. Gate under 12 ft wide? You’re stuck with a smaller single-axle truck (5–6 yard capacity) that costs 40–60% more per yard. One tri-axle replaces 2–3 single-axle runs. A failed delivery attempt carries a $50–$150 dry-run fee at most haulers. Tri-axle trucks run 25–30 feet long and need a 35-foot turning radius to position for dumping.
Rookie mistakes
Depth must be in fractions of a foot. 4 Inches = 0.33 ft. Not 4. Using 4 instead of 0.33 inflates your estimate by 12×, turning 3 loads into 36. Length (ft) × width (ft) × depth (ft) ÷ 27 = cubic yards. A 50×12-ft driveway at 4 inches deep = 50 × 12 × 0.33 ÷ 27 = 7.3 yd³.
Pea gravel = 1.35 tons/yd; #57 stone = 1.4 tons/yd. Crusher run = 1.6 tons/yd. Crusher run on a 22-ton truck maxes at ~13.5 yards. Not the 14-yard bin capacity. Wrong weight estimate on 6 loads = 1+ extra trip at $300–$500 per delivery.
Uneven subgrade eats 10–15% more gravel than flat-surface math predicts. A 50-yard job with no buffer typically runs short by 5–8 yards. The callback minimum is 3 yards. Add buffer upfront to avoid the $150+ re-delivery fee. On a 50-yard project at $35–$65/ton, the buffer material costs a fraction of that second truck.
What NOT to build with gravel dump truck calculator
Don't use gravel dump truck calculator for: Road base or structural fill requiring compaction testing and engineer certification
Certified road base and structural fill projects require graded aggregate meeting DOT specs (AASHTO M 147), nuclear density compaction testing at $150–$300 per test. A geotechnical engineer's certification at $1,500–$5,000 per project. This calculator sizes loose-dumped decorative or driveway gravel at 1.4 tons per cubic yard without compaction specifications.
Don't use gravel dump truck calculator for: Deliveries over seasonal weight-restricted roads with posted limits under 40,000 lbs gross
Spring-thaw weight restrictions on rural and township roads drop legal gross vehicle weight from 80,000 lbs to as low as 40,000 lbs. Cutting a tandem truck's payload from 13 tons to 5–6 tons and doubling trip count. Overweight fines run $100–$500 per violation, and road damage liability can exceed $2,000. This calculator assumes standard unrestricted road delivery at full 10–14 ton tandem capacity.
Dump truck classes and payload
Gravel density and volume conversion
Delivery weight limits and road regulations
Site access requirements for delivery
Frequently Asked Questions
How many tons of gravel fit in a dump truck?
For a 200 sq ft coverage area at 3 inches deep (about 1 cubic yard), A standard tandem-axle dump truck carries 10–14 tons of gravel. A single-axle holds 5–7 tons and a tri-axle or quad-axle carries 16–20 tons. Payload is set by the legal axle-weight limit, not bed volume. Wet gravel adds 100–200 lb per cubic yard, hitting the weight limit before the bed is full. For a 20-ton project, that is 2 tandem loads or 1 tri-axle load. Sizing the truck to the load minimizes the per-trip delivery fee of $100–$175.
How many dump trucks do I need for 20 tons of gravel?
For a 200 sq ft coverage area at 3 inches deep (about 1 cubic yard), 2 trips with a standard tandem (10–14 tons each) or 1 trip with a tri-axle (16–20 tons). That truck choice matters. Each trip carries its own $100–$175 delivery fee, so one tri-axle load can be far cheaper than two tandem loads for the same 20 tons. Ask the supplier which truck sizes they run before ordering.
How much area does one dump truck of gravel cover?
About 700–900 sq ft at 4 inches deep for a 13-ton tandem load. About 13 Tons ÷ 1.4 tons per cubic yard ≈ 9.3 cubic yards. 1 Cubic yard covers 81 sq ft at 4 inches. At 2 inches the same load covers about 1,500 sq ft. At 6 inches about 500 sq ft. Confirm your design depth before estimating truckloads, since coverage shifts by 50% between a 2-inch and 4-inch application.
How much does a dump truck load of gravel cost?
For a 200 sq ft coverage area at 3 inches deep (about 1 cubic yard). A full 13-ton tandem load runs $425–$1,020 in material at $25–$65/ton (BLS PPI PCU212321) Add a $100–$175 delivery trip fee — $525–$1,200 delivered. The trip fee is fixed, so a full load is far cheaper per ton than a partial load. Ordering 6 tons pays the same $100–$175 haul fee as ordering 13.
Can a dump truck drive on my lawn to deliver gravel?
Not safely. A loaded tandem weighs 50,000–60,000 lbs and sinks into soft or wet ground, leaving ruts 6–12 inches deep. Worse, it risks damage to septic laterals, irrigation lines, and drain fields. Confirm firm access, 12-foot overhead clearance, and a turning path before delivery. Plan to wheelbarrow or machine-move material from a safe curb or driveway dump spot, adding $0.05–$0.15/sq ft in spread labor.
Should I order gravel by the ton or by the truckload?
By the ton — the certified scale ticket records the exact weight to ±20 lb. A "truckload" varies because wet gravel hits the legal weight limit before the bed is visibly full. A truck rated for 14 tons of dry stone may legally carry only 12 tons of rain-soaked gravel, a 14% shortfall. Order by certified tonnage and request the scale ticket on delivery. It should match your purchase order within 2–3% or give you grounds to dispute the invoice.
Don’t forget to budget for related work — try our Gravel Driveway Cost Calculator.
Planning the next phase? Our Stone Cost Calculator can help you estimate.
Related Calculators
Know how much gravel you need? Calculate material cost before adding delivery charges.
→ Gravel Cost Per TonGravel Driveway CostBuilding a gravel driveway? Get the full installed cost including base prep and compaction.
→ Gravel Driveway CostFill Dirt CostNeed fill dirt delivered too? Compare dump truck loads for dirt vs.
→ Fill Dirt CostSources
- FHWA Bridge Formula & Truck Weight Regulations — verified 2025-06, updates periodic