How long does a van conversion take? Realistic timelines by build type
· 6 min read
The short answer: a complete DIY conversion — insulation, electrics, water, furniture, the lot — takes roughly 6–12 weeks full-time or 6–12 months of weekends. The most common real-world outcome, though, is neither. It's 18 months and stalled: a van that drives, half a bed frame, and a builder who dreads Saturdays. And in almost every stalled build the culprit is the same — not skills, not budget, but a plan that ran out somewhere around the second furniture module. Timelines don't collapse because people saw badly. They collapse because people designed while building.
The two honest timelines
Full-timers (between jobs, sabbatical, unemployed-on-purpose) put in 30–40 h a week and finish in a couple of months. Weekend builders realistically manage 6–10 h a week once weather, family and motivation are averaged in — call it 8 h. Everything below is the same work; only the divisor changes.
Where the hours actually go
These ranges are what DIY builders typically report, not lab data. Your van, tools and standards move you within the band — rarely outside it.
| Phase | Typical hours | Notes |
|---|---|---|
| Planning & design | 20–60 h | Layout, electrical diagram, cut list — the cheapest hours in the build |
| Rust treatment & prep | 10–40 h | Depends entirely on the van you bought |
| Cutting holes (windows, fan) | 15–25 h | Short in hours, long in nerve |
| Wiring & plumbing first fix | 30–60 h | Every cable run behind future walls |
| Insulation | 20–40 h | Tedious, not hard |
| Floor & wall/ceiling cladding | 40–80 h | Nothing in a van is square |
| Furniture | 80–200 h | The big one — see below |
| Electrical second fix & gas | 20–40 h | Plus certification where required |
| Finishing & trim | 20–60 h | The last 5% that takes 15% of the time |
| Total | ~250–600 h |
Run the weekend math: at 8 h a week, a disciplined 250–400 h build lands at 6–12 months. The 500–600 h end of the band, at the same pace, is a year and a half — which is exactly where “18 months and stalled” comes from. The difference between the two ends of that band is mostly decided before the first cut.
What always overruns
Three things blow the schedule, in every build, predictably:
- Furniture. Nothing is flat-pack. Every cabinet is custom-scribed around wheel arches, ribs and curving walls, and each piece that wasn't drawn in advance becomes a design session with a saw in your hand. This is how 80 h quietly becomes 200.
- Waiting for parts. Order-as-you-go means the build pauses every time a diesel heater, a window or a hinge is a week away. Ten small waits is two lost months.
- Redoing out-of-sequence work. Cladding before the last cable run, insulating before the window holes — sequence mistakes don't cost hours, they cost the same hours twice. The build-order guide exists precisely so you only do each phase once.
What compresses the calendar
- A complete plan before the first cut. A finished layout with a full cut list turns furniture from design-while-building into assembly — and since furniture is where the extra 100–200 h hides, this is the single biggest lever on the whole timeline. Twenty planning hours routinely buy back a hundred building ones.
- Batch the purchases. With a full bill of materials you order the heater, electrics and timber in two or three waves instead of twenty, and the build never idles on delivery.
- Bench-build off the van. Cabinets, the electrical board and drawer boxes can be built in a warm workshop on weekday evenings, then installed on the weekend. The van stops being the bottleneck.
- Ruthless scope control. Every system you delete removes its whole column of hours. The classic candidate is the shower — a cubicle adds plumbing, a tray, waterproofing and a tank, and the honest space-and-effort math says most part-timers shouldn't build one.
Buying time with money
Hours and euros are exchangeable, and it's worth pricing your own weekends before committing 400 of them:
| Route | Your hours | Extra cost vs full DIY |
|---|---|---|
| Full DIY from empty van | 250–600 h | — |
| DIY + trades for gas/electrics | 220–500 h | + €500–1,500 |
| Furniture kit / modular system | 100–250 h | + €2,000–6,000 |
| Part-converted van (insulated, clad) | 80–200 h | + €3,000–8,000 on purchase |
| Professional conversion | ~0 h | + €15,000–40,000 |
If your weekends are scarce and your savings aren't, a part-converted base or a furniture kit deletes the two slowest phases — cladding and cabinetry — and keeps the satisfying parts. If it's the other way round, DIY the lot; just don't pretend the 600-hour scenario can't happen to you. It happens to most people who skip the first row of the phase table.
Spend the cheap hours first
Every hour in this article costs the same on your calendar, but they are not equal in leverage: a planning hour prevents rework, a building hour just builds, and a redoing hour is pure loss. The cheapest possible version of your conversion is the one that is fully designed — layout, weight check, cut list — before the grinder comes out. That's exactly what VanPlot is for: drop your real furniture into your real van in 3D, check payload, and walk into the garage with a cut list instead of a vibe. It's free in the browser, and it turns the eight-month weekend grind into the six-month one. Start in VanPlot on a rainy evening; your future Saturdays will thank you.