End dump truck vs belly dump vs side dump: which trailer fits the work
Steve Woods · Truck Dispatcher, TruckSprint
Steve Woods is a truck dispatcher with 9 years of experience in trucking. He reviews every guide we publish. How we research and update guides.
Updated October 2026
Quick answer
An end dump truck is usually a tractor pulling an end dump trailer that tips up and unloads out the back. A belly dump spreads material through gates underneath while moving; a side dump tips sideways. Each can gross 80,000 lb on the Interstate with five well-spaced axles. Used end dumps had a median asking price of $35,900 in October 2026.
Source: Our TruckPaper dump trailer listing snapshot, Oct 27, 2026; 23 CFR 658.17 · checked 2026-10
An end dump truck is the most common way to move aggregate long distances on a semi, but it isn't always the right trailer. I'm Steve Woods, a truck dispatcher at TruckSprint with 9 years in trucking. Here's how end, belly and side dumps compare, what each one costs, and what they legally carry.
The three trailers side by side
| End dump | Belly (bottom) dump | Side dump | |
|---|---|---|---|
| How it unloads | Body tips up, gate opens at the rear | Gates open under the trailer | Body tips to one side |
| Unloads while moving | No | Yes, in a windrow | No |
| Ground needed | Firm and level, overhead clearance | Room to drive over the drop | Room beside the trailer |
| Stability while dumping | Lowest; raised body is tall | High; nothing raised | High; body stays low |
| Best materials | Almost anything: aggregate, dirt, debris, asphalt | Free-flowing: sand, gravel, base | Rock, rip-rap, sticky or wet loads, demolition |
| Weak spot | Rollover on soft or sloped ground | Large rock and sticky loads | Width to dump; heavier trailer |
What is an end dump truck?
A semi end dump is an open trailer with a front-mounted hydraulic hoist. At the drop, the driver opens the tailgate, raises the body and lets the load slide out. Bodies come in steel or aluminum, half-round or square, and in lengths that let the trailer spread its weight over the axles.
The end dump's strength is that it can haul nearly everything: base, rock, dirt, asphalt, debris, even some bulk loads outside construction. Its weakness is the raised body. A fully raised trailer on soft or uneven ground, or with material stuck at the front, can tip. Level ground, a body that empties fully, and staying in the cab are the basics; we cover them in dump truck rollover prevention.
Belly dumps
A belly dump (bottom dump) has clamshell gates under the trailer. The driver opens them while rolling and lays a windrow for a grader to spread, which is why road crews like them for base and sand. Nothing goes up in the air, so they're stable and can dump under low wires. They can also unload over a grate into a conveyor pit. They struggle with big rock, clay and anything that bridges over the gates.
Side dumps
A side dump tips its body sideways off the frame. The center of gravity stays low, the load leaves fast, and large rock or wet loads that hang up in an end dump come out clean. The trade-offs are the space needed beside the trailer and a heavier, pricier build.
Transfer dumps, which put a second body on a trailer behind a straight truck, are covered in types of dump trucks.
Semi end dump weight limits
All three trailers usually run as five-axle combinations: steer, tandem drives, tandem trailer axles. On the Interstate:
- Gross is capped at 80,000 lb, and the Bridge Formula only allows that with about 51 ft or more from the steer axle to the last trailer axle.
- Each tandem is limited to 34,000 lb, and a single axle to 20,000 lb.
Source: 23 CFR 658.17 (Bridge Formula, axle limits) · checked 2026-10
Legal payload is 80,000 lb minus your rig's scale weight empty. Aluminum trailers weigh less than steel ones, which leaves more of the 80,000 lb for payload. Many states allow heavier dump combinations on state roads; check your state before you load past federal numbers.
What each trailer costs
From our October 27, 2026 read of every TruckPaper listing in the end, bottom and side dump trailer categories (asking prices; listings without a price or under $5,000 left out):
| Trailer | New | Used |
|---|---|---|
| End dump | $79,000$67,700-$93,600(481) | $35,900$20,000-$51,000(1139) |
| Belly (bottom) dump | $52,900$48,000-$73,900(109) | $39,300$26,600-$53,300(108) |
| Side dump | $85,900$74,100-$99,000(216) | $67,200$48,900-$88,000(87) |
Source: TruckPaper.com, End, Bottom and Side Dump Trailer categories (our count and quartiles) · checked 2026-10
For what it costs to run, FEMA's 2025 equipment schedule pays $91.10 an hour for a 6x4 truck tractor and $17.18 for a 30-yard end dump trailer on eligible disaster work, operator not included. Together that's $108.28 an hour. FEMA lists an off-highway bottom dump trailer at $25.30 an hour and no side dump.
Source: FEMA Public Assistance, 2025 Schedule of Equipment Rates (disasters declared on or after July 1, 2025), Truck, Dump · checked 2026-10
End dump trucking: which trailer for your work
- Mixed construction work: end dump. It takes the widest range of loads and customers.
- Road base and sand on highway jobs: belly dump, if the contractors near you spread with graders.
- Quarry rock, rip-rap, demolition: side dump, if the jobs have room to unload.
Long hauls favor the bigger payload of a semi; short city work often favors a tri-axle (see how much a dump truck costs for those prices). Loading, covering and ticketing are the same for all of them; see hauling aggregate.
Finding end dump trucking companies
If you're hiring or subbing loads, ask the pits, quarries and asphalt plants who hauls for them. Then look up any company on FMCSA's Company Snapshot: operating status, power units, and inspection out-of-service rates are public. Confirm insurance with the company's own certificate.
TruckSprint no longer dispatches dump trucks. If you also run a 26 ft box truck, our desk can keep it loaded.
Sources
- Our TruckPaper dump trailer listing snapshot (end, bottom, side), October 27, 2026
- 23 CFR 658.17 (eCFR); FHWA Bridge Formula Weights
- FEMA Public Assistance 2025 Schedule of Equipment Rates
- FMCSA SAFER Company Snapshot