Most food trucks assume there is a building nearby. A restroom somewhere, a tap somewhere, a place to wash up. Plenty of operators do not have that. If you are parked at a trailhead, a job site, a rural school, a festival field or a community with no facilities at all, the vehicle has to carry everything with it.
We build that. A restroom with its own sink, toilet, plumbing, tanks and water heater, completely separate from the kitchen. It is not something most builders will take on, and it is not on either of our sites until now, which is the reason for this page.
What an On Board Restroom Actually Involves
The important word is separate. A restroom sharing plumbing with a food prep area is a health code problem, so it gets built as its own system end to end.
On the Mugshots Coffee build in Missoula, Montana, that meant a 4ft by 4ft restroom with a sink and toilet, running on its own plumbing, its own fresh and waste tanks and its own water heater. Nothing shared with the kitchen side.
That truck ends up with three independent water systems once you count them: the kitchen, the restroom, and the purified system feeding the espresso machine. Each one has its own supply, its own routing and its own reason to exist. That is the part people underestimate. Adding a restroom is not adding a fixture, it is adding a second building’s worth of plumbing to a vehicle that already has a full commercial kitchen in it.
Space is the other trade. Four feet by four feet is four feet by four feet you do not have for equipment or for staff to move. On a coffee and breakfast truck that works. On an equipment heavy concept you have to decide what you are giving up, and we would rather have that conversation before we start than after.
Built for Sites With No Facilities
The clearest case for this is a vehicle that works away from buildings by design.
We built an outreach van for the Carson Tahoe health system in Carson City, Nevada. A health system taking services out to people who cannot easily travel is, by definition, working somewhere without the infrastructure a clinic has. The vehicle has to be self sufficient, because there is often nothing to plug into and nowhere to send staff or visitors.
The same logic covers a lot of ground. Remote job sites. Rural events. Disaster response. Anywhere the vehicle is the facility rather than an extension of one.
We Build for Institutions as Well as Food Businesses
Worth saying plainly, because neither of our sites has said it before. A good share of our work is for organisations rather than food entrepreneurs.
- Health systems. The Carson Tahoe outreach van, built for a hospital system working away from its buildings.
- School districts. We have delivered for the Lamar, Gadsden in Arizona and Canon City school systems, and for a Grand Junction school district as a school bus to food bus conversion. You can see more on our food trucks for schools and districts page.
- Community and outreach programs that need a vehicle to function independently of any site.
Institutional buyers usually arrive with a different set of questions than a first time food truck owner. Procurement timelines, accessibility, service life, and whether the vehicle can operate somewhere with no hookups at all. We are comfortable with all of that.
Why the Plumbing Has to Be Completely Separate
This is the part that decides whether a build passes inspection, so it is worth being precise about.
Health codes treat food preparation water and restroom water as two different worlds. A handwash sink in a kitchen exists to keep food safe and cannot be shared with anything else. A restroom sink serves a room containing a toilet. Any shared supply, shared waste, or cross connection between the two creates a contamination path an inspector will fail you for, and rightly so.
So a restroom build is not a fixture added to an existing system. It is a parallel system: its own fresh tank, its own waste tank, its own pump, its own water heater and its own routing, kept physically separate from the kitchen throughout. Waste from a toilet is also handled differently from kitchen gray water, which affects tank choice and how the vehicle is serviced at the end of a shift.
That separation is the reason the Mugshots truck ends up with three water systems. The kitchen has one. The restroom has one. The espresso machine has a purified system of its own, because coffee equipment is fussy about water quality and scale in a way a dish sink is not.
Tank Sizing Is the Decision That Bites
People underestimate how much water a restroom uses and how quickly waste capacity fills. Every flush and every handwash goes somewhere, and unlike a kitchen you cannot really ration it, because the whole point is that it is available when someone needs it.
Three things drive the sizing:
- Who is using it. Staff only on a two person truck is a completely different number from public access at a festival.
- Shift length. A four hour lunch service and a twelve hour event day are not the same build.
- Whether you can dump and refill mid shift. If there is nowhere to service the vehicle, everything has to be carried for the full day.
Waste capacity is what actually ends your day. You can sometimes top up fresh water from a hose. You cannot make waste capacity appear. We size the waste side deliberately larger than a first guess for that reason, and we would rather ask you awkward questions about volume up front than hand you a vehicle that fills by two in the afternoon.
The Space Trade, Honestly
A 4ft by 4ft restroom is sixteen square feet, plus the wall thickness around it and clearance for the door to open. On an 18ft truck that is a meaningful share of your working area, and it comes out of somewhere.
What it usually costs you is equipment line length or storage. On the Mugshots build that worked because a coffee and breakfast menu has a compact cook line and the restroom was the point of the vehicle. On an equipment heavy concept like barbecue or pizza, where a smoker or an oven already dominates the layout, the same sixteen square feet is much harder to find. In those cases the honest answer is often a longer vehicle rather than a compromised one, and we will tell you that before you commit.
The other option worth considering is a second unit. For some operations a support trailer carrying the restroom and storage, towed alongside a compact food truck, works better than forcing everything into one box. It depends on where you park and whether you can manage two vehicles.
Questions Institutional Buyers Usually Ask
Can the vehicle work with no hookups at all?
Yes, that is the design goal for this kind of build. Water is carried, waste is carried, and power comes from a generator or a battery bank depending on the noise and emissions requirements of the site. If you are going into schools or a hospital campus, look at our electric build options, because a silent vehicle is often the difference between being allowed on site and not.
How long do these vehicles last?
The build outlives the equipment inside it. Commercial kitchen equipment generally runs seven to twenty years depending on the item, and plumbing and fixtures need routine service like any building. The shell and the fabrication are the long lived part, which matters when you are justifying the spend over a service life rather than a season.
Do you work with procurement processes?
Yes. School districts and health systems buy differently from food entrepreneurs, with quotes, specifications and approval steps. We are used to producing a documented specification you can put in front of a board rather than a one line price.
Is the restroom accessible?
Accessibility requirements depend on your organisation, your funding source and how the vehicle is used, and they are not something to guess at. Tell us what standard you have to meet and we will build to it or tell you plainly if it cannot be met in the footprint you have in mind.
What is completed before delivery?
The vehicle is finished and tested before it leaves us, including the fire suppression inspection where the build calls for one. Local health and operating permits are issued by your jurisdiction, so those steps are yours, and our permit guides walk through what each state asks for.
How to Tell Us What You Need
The questions we will ask you first:
- Where will the vehicle park, and is there water, power or sewer there?
- Who uses the restroom, staff only or the public?
- How long is a typical shift, since that drives tank sizing more than anything else?
- Does the vehicle need to run while it is moving, or only when parked?
- What is the menu or the service, since that decides what space is left?
You do not need answers to all of them before you call. Working through them is the job.
Talk It Through
A restroom build is a specific requirement. You either need one or you do not, and if you do, most builders will steer you away from it. Call or text 719-722-2537 and describe where the vehicle is going to work. We will tell you honestly whether an on board restroom is the right answer or whether there is a simpler way to solve it.
You can price the rest of the build with our build and cost calculator. Trucks start around $55,000 and trailers around $40,000, with a typical 16ft build around $72,000. A restroom and its plumbing add to that, and we will quote it properly rather than guess.
Zion Foodtrucks, 213 Aspen Garden Way Unit 2, Woodland Park, CO 80863. Around 500 builds delivered across the Mountain West.