Payload vs volume: how to choose the right truck size
Why a truck can be "full" long before it looks full, and how to describe your load so you get the right vehicle the first time.
When you hire a truck, two numbers matter: payload and load volume. They measure different things, and mixing them up is the most common reason a job needs a second trip.
Payload: how much weight
Payload is the maximum mass a vehicle may legally carry, given in kilograms or tonnes. A "4-ton truck" usually refers to its payload class. Overloading is unsafe, damages the vehicle and is against the law, so drivers will stop loading at the limit even if there is space left.
Load volume: how much space
Load volume is the size of the load area in cubic metres (m³). A box-body truck might offer 20 m³ or more of space, while a small tipper might offer 6 m³.
Which limit will you reach first?
| Type of load | Usually limited by |
|---|---|
| Furniture, boxes, mattresses | Volume |
| Builders' rubble, concrete, soil | Weight |
| Sand and stone | Weight |
| Mixed household junk | Usually volume |
A cubic metre of builders' rubble typically weighs well over a tonne, so a modest-looking pile can exceed a light truck's payload. Furniture is the opposite: it is bulky but relatively light.
How to describe your load
- Say what it is. "Bricks and plaster" tells us far more than "rubble".
- Estimate the amount. Count bags, wheelbarrow loads or rooms, or measure the pile (length × width × height gives cubic metres).
- Send photos. Two or three photos are often enough to recommend the right vehicle.
- Mention access. Stairs, narrow driveways and long carries affect the vehicle choice and the time needed.
Every listing on our vehicles page shows payload and load volume separately, so you can compare like with like. If you are unsure, request a quote and we will recommend a vehicle.