How many seats can a camper van have? Belted seats, bench space and the payload each one costs

In the UK there is no specific legal limit on the passengers a converted van carries until it has more than 8 passenger seats, at which point it counts as a minibus — and a car (category B) licence covers up to 8 passenger seats at 3,500 kg. The real limits are floor and payload: a three-belt rear bench is 0.60 m deep, and with three people on it costs 275 kg of payload. In a mid-size van that bench and a fixed bed leave under half a metre of floor; in a small van they do not fit together at all.

So “how many seats” is really three questions: what the rules let you carry, what the floor leaves room for once there is a bed, and what each seat does to your payload. This post takes them in that order. It is written for UK and US builders; other countries have their own approval rules (the UK and US regulations post covers the motor-caravan side).

What the rules say (checked October 2026)

The DVSA and DfT guidance “Converting a van to carry passengers in the rear” is the plain-English source for the UK. In summary:

• Rear belts are not legally required in a van, but the advice is that passengers travel in a proper seat with belts, that the belts meet the latest British or European standards, and that belts and anchorages are professionally installed.
• Side-facing seats are not illegal, but not advised: belts are not designed for them, they raise injury risk in a frontal crash, and child restraints cannot be fitted to them. Children 12 and under need forward- or rearward-facing seats for their restraints.
• Anchorages have to hold crash forces, and there is no formal checking procedure for private conversions — the guidance recommends a seat-belt installation check if you fit new belts.
• No specific passenger limit, but more than 8 seats in addition to the driver makes it a minibus or bus. GOV.UK’s licence categories put category B at up to 8 passenger seats and 3,500 kg (4,250 kg for zero-emission vans).
• Tell your insurer the number of passengers and how they are carried.

In the US, seat-belt anchorage strength is set by FMVSS 210 (49 CFR 571.210), which applies to passenger cars, multipurpose passenger vehicles, trucks and buses as built: a lap and shoulder belt’s anchorages must withstand 13,345 N (3,000 lb) on each part at once. A seat added after sale carries no such test, which is why the usual approach is to bolt rear seats to the van’s factory seat-mount points where the body has them, or to a crash-tested seat rail. Belt-use laws are state law and vary.

What the floor leaves room for

A seat for travelling has to face forward or backward, so it sits across the van and takes length. The planner’s three-belt bench is 1.10 m wide and 0.60 m deep. The table puts it behind the cab with a lengthwise 190 cm bed at the back — the most common layout that sleeps two and seats four or five — and shows the floor left over for the kitchen and for knees. The transverse column is only filled where a 1.70 m sleeper fits across the van.

Load lengths and payloads are the shortest and longest variant from the van database (payload is the plated maximum minus kerb weight, a planning figure). ✗ means the bench and bed are longer than the load floor. The aisle column is the finished width between the walls minus the bench — the gap left if the bench does not span the van.

Read the large vans first: the shortest Ducato, Sprinter or Master leaves almost nothing (0.17 m in an L1 Ducato), while the longest Ducato leaves 1.57 m and the longest Sprinter 2.21 m — room for a kitchen and a washroom. A transverse bed in a Ducato frees another half metre: 0.67 m to 2.07 m. The mid-size vans — Transit Custom, Trafic, Transporter, Vito — are where it gets tight: 0.06 m to 0.42 m in a Transit Custom, -0.05 m to 0.35 m in a Transporter. That is the reason the rock-and-roll bed exists.

The rock-and-roll bed: the seat is the bed

A rock-and-roll bed is a belted bench whose back folds flat into a bed, so the travel seats and the bed share the same floor. The planner’s seat-bed is 1.21 m wide and 0.65 m deep as a seat and weighs 80 kg — heavier than a plain bench because the frame and the crash-tested mechanism are steel. It is usually two belts and three-quarter width, because it has to sit between the wheel arches: the wheel-arch post has the gap per van, and the small-van layouts post shows what fits around one. Two occupied belts plus the frame cost 230 kg of payload.

Swivel cab seats: free seats, if they can turn

The cheapest extra seats are the ones already in the cab. A swivel base turns the passenger seat (and sometimes the driver’s) to face the living area. It adds about 8 cm of seat height and 10 kg, and the seat sweeps a circle of roughly 0.39 m radius around its pivot, so a kitchen or bench that starts right behind the cab stops it turning. On the driver’s side the handbrake is often in the way and needs a lowering kit. The extra seat height also changes what table height works — the desk and seat dimensions post has the numbers.

What each seat does to payload

EN 1646-2, the motor-caravan payload standard, reserves 75 kg for every travel seat beyond the driver, plus 10 kg per metre of van and 10 kg per berth. On a 6 m van that sleeps two, the reserve is 155 kg with two travel seats and 380 kg with five. Add the bench and the cost of going from two seats to five is 275 kg; on a build already close to its plated weight, that is the difference between legal and overweight. The payload reserve post explains the formula and the payload calculator runs it for your van.

In the VanPlot editor, belted benches, rock-and-roll beds and swivel bases are catalog items with these footprints and weights, so the axle loads and the remaining payload update as you place them. VanPlot AI (beta, included with the licence) places and moves parts when you ask in plain words — “add a belted bench behind the cab” — and reads back the payload and axle loads afterwards; see planning a layout with AI.

FAQ

Related: layouts for a family of 4 · payload calculator