RAM ProMaster camper conversion
The ProMaster comes in 7 variants in the planner, with cargo areas from 2.67 m to 4.07 m long inside and payloads up to about 1,560 kg. Drivetrains: FWD.
The ProMaster shares its body with the Fiat Ducato — same dimensions, same apertures, same conversion decisions. Everything on this page applies to the whole family. Fiat Ducato →
Interior dimensions by variant
| Variant | Drive | Interior L × W × H | Payload ≈ | Wheelbase | Ext. height |
|---|---|---|---|---|---|
| L1H1 | FWD | 2.67 × 1.87 × 1.66 m | 1,560 kg | 3.00 m | 2.25 m |
| L2H1 | FWD | 3.12 × 1.87 × 1.66 m | 1,520 kg | 3.45 m | 2.25 m |
| L2H2 | FWD | 3.12 × 1.87 × 1.93 m | 1,480 kg | 3.45 m | 2.52 m |
| L3H2 | FWD | 3.71 × 1.87 × 1.93 m | 1,405 kg | 4.04 m | 2.52 m |
| L3H3 | FWD | 3.71 × 1.87 × 2.17 m | 1,370 kg | 4.04 m | 2.76 m |
| L4H2 | FWD | 4.07 × 1.87 × 1.93 m | 1,265 kg | 4.04 m | 2.52 m |
| L4H3 | FWD | 4.07 × 1.87 × 2.17 m | 1,230 kg | 4.04 m | 2.76 m |
Interior figures are between the walls and floor-to-headliner, derived from manufacturer specs and calibrated against published cargo dimensions. Payload ≈ gross weight minus kerb weight — it varies with engine and options, so treat it as a planning guide.
What fits
- Standing: after a typical floor and ceiling build-up (~7 cm), the ProMaster L3H3 leaves about 2.10 m of headroom.
- Bed across: at 1.87 m between the walls, the ProMaster L1H1 takes a standard 1.86 m mattress transversely — the layout that frees the most floor.
- Parking: every variant is over 2.0 m tall outside — underground garages and most height barriers are out.
Payload budget
Depending on variant, the ProMaster carries roughly 1,230 kg to 1,560 kg of conversion, gear, water and people before hitting the gross weight limit. A typical full build lands between 400 and 700 kg before you pack — weigh the plan before you cut.
Check your numbers in the payload calculator →Same van, different badge
These vans are built on the same body as the ProMaster — the dimensions and layout advice carry over one-to-one:
Frequently asked
How long is the ProMaster inside?
The cargo area runs from 2.67 m in the shortest variant to 4.07 m in the longest, measured from the bulkhead to the rear doors.
Can you stand up in a ProMaster camper?
Yes — the tall variants have 2.17 m floor-to-headliner, about 2.10 m after a typical floor and ceiling build-up.
How much payload does a ProMaster have for a conversion?
Roughly 1,230 kg to 1,560 kg depending on variant and engine — gross weight minus kerb weight. The build, water, gear and passengers all come out of that number.
Which vans are the same as the ProMaster?
The ProMaster shares its body and dimensions with: Fiat Ducato, Peugeot Boxer, Citroën Relay.
Figures derived from manufacturer specifications; interior dimensions calibrated against published cargo volumes. Always verify against your actual vehicle — model years differ.
Plan your ProMaster in 3D
Every variant on this page is in the planner with real wheel arches, wall taper and door apertures. Place the bed, watch the payload — before you buy the van.
Start planning — freeWho makes this
I'm Vladimir. I'm planning my own conversion, and none of the tools I tried could tell me whether a layout would fit or what it would do to the rear axle, so I made this one. I work on it alone. If something's wrong or missing, write to me — the address goes to my inbox.
Vladimir Šterjoski