A compact towable tiny house built on a flatbed trailer, with sleeping space for two adults, a small kitchen, a bathroom, storage, and a living area arranged for full-time or seasonal use.
Two people who want a smaller home footprint, lower utility demand, and the ability to live off-grid or park in a rural or semi-rural location where trailer-based housing is allowed.
The trailer stays parked in one place most of the time, with occasional relocation by a qualified tow operator. Daily use centers on cooking, sleeping, bathing, storage, and light work or leisure inside the house.
Keep the total size road-aware, keep the interior efficient, support off-grid power through solar and battery storage, and keep construction practical within a roughly US$60,000 planning budget.
| Item | Estimate | Units | Notes |
|---|---|---|---|
| Overall length | 24 | ft | Approx. house body on trailer, not including hitch |
| Overall width | 8.5 | ft | Approx. legal travel width in many areas |
| Overall height | 13.0 | ft | Approx. travel height target; confirm with trailer and roof build-up |
| Interior floor area | 190–220 | sq ft | Depends on loft layout and wall thickness |
| Dry weight | 10,000–14,000 | lb | Approx., depending on materials and systems |
| Sleeping capacity | 2 | people | Main bedroom or loft sleeping area |
| Fresh water capacity | 80–160 | gal | Approx. onboard storage or external tanks |
| Wastewater capacity | 80–160 | gal | Approx. greywater/blackwater depending on toilet choice |
| Solar array output | 2.0–4.0 | kW | Approx. roof-mounted array, site and roof area dependent |
| Battery storage | 10–20 | kWh | Approx. usable storage for lights, fridge, outlets, and pump loads |
| Inverter output | 3–6 | kW | Approx. pure-sine inverter size range |
| Expected off-grid run time | 1–3 | days | Approx. without sun, depending on usage and weather |
| Main materials | Steel trailer, framed walls, insulated shell, metal roof, wood interior finish, solar/electrical hardware | Final materials should be selected to suit climate and code needs | |
All values above are planning estimates only. Final dimensions, weights, axle ratings, and utility sizing must be verified before purchase or fabrication.
The JSON above is a simple placement sketch to help visualize the volume. It is not a fabrication model or structural file.
Solar panels charge a battery bank through a charge controller. The inverter converts stored DC energy into household AC power for lights, outlets, the fridge, and small appliances. The system should be sized to cover typical daily use while leaving reserve capacity for cloudy days.
Fresh water is stored on board or in a protected external tank. A small pump feeds the sink, shower, and toilet system. Wastewater handling depends on the toilet choice and local rules, so the final plan should be coordinated with the site and code requirements.
The front half can hold the living room, kitchen, and storage, while the rear section can contain the bathroom and utility space. A loft or raised sleeping zone saves floor area and keeps the two-person layout compact without making the interior feel too cramped.
The trailer, wall framing, and roof must work together as one structure. Weight distribution, axle loading, roof height, and tie-down points are all important, and the final configuration should be checked before the shell is built.
| # | Part | Typical spec | Qty | Est. unit price | Est. total | Supplier type |
|---|---|---|---|---|---|---|
| 1 | Trailer frame | 24 ft heavy-duty steel trailer, tandem axle, rated for tiny house use | 1 | $12,000–$20,000 | $12,000–$20,000 | Trailer builder / specialty chassis supplier |
| 2 | Floor deck | Structural plywood or comparable subfloor assembly | 1 | $1,200–$2,500 | $1,200–$2,500 | Building materials supplier |
| 3 | Wall shell | Framing lumber, sheathing, housewrap, fasteners, insulation | 1 | $5,000–$10,000 | $5,000–$10,000 | Lumber yard / building materials supplier |
| 4 | Roof shell | Framing, roof deck, underlayment, metal roofing, flashing | 1 | $3,500–$8,000 | $3,500–$8,000 | Roofing supply house |
| 5 | Entry porch | Simple landing, steps, railings as required | 1 | $500–$2,000 | $500–$2,000 | Carpentry / lumber supplier |
| 6 | Loft structure | Framing members, decking, guard components | 1 | $1,200–$3,500 | $1,200–$3,500 | Building materials supplier |
| 7 | Kitchen block | Base cabinets, countertop, sink, faucet, small appliances | 1 | $2,500–$7,000 | $2,500–$7,000 | Cabinet / appliance supplier |
| 8 | Bathroom block | Shower, toilet, vanity, waterproof wall finish, vents | 1 | $2,500–$8,000 | $2,500–$8,000 | Plumbing / bath supplier |
| 9 | Battery bank | Approx. 10–20 kWh lithium battery storage | 1 | $4,000–$12,000 | $4,000–$12,000 | Solar / electrical supplier |
| 10 | Inverter cabinet | Pure-sine inverter, breaker panel, disconnects, monitoring | 1 | $1,500–$4,000 | $1,500–$4,000 | Solar / electrical supplier |
| 11 | Solar array | Approx. 2.0–4.0 kW panels with racking and combiner hardware | 1 | $3,000–$9,000 | $3,000–$9,000 | Solar supplier |
| 12 | Water tank | Approx. 80–160 gal fresh water tank or paired tanks | 1 | $400–$1,500 | $400–$1,500 | Plumbing supplier |
| 13 | Waste tank | Approx. 80–160 gal holding setup, if used | 1 | $400–$1,500 | $400–$1,500 | Plumbing supplier |
| 14 | Windows | Insulated fixed or operable windows, mixed sizes | 4–8 | $250–$900 | $1,000–$7,200 | Window supplier |
| 15 | Exterior door | Insulated entry door with weather sealing | 1 | $700–$2,000 | $700–$2,000 | Door supplier |
| 16 | Interior finishes | Drywall or paneling, trim, flooring, paint, sealant | 1 lot | $3,000–$8,000 | $3,000–$8,000 | Building finish supplier |
| 17 | Stair/storage | Built-in stairs with drawers or cabinetry | 1 | $1,000–$4,000 | $1,000–$4,000 | Carpentry / cabinet supplier |
| 18 | Bed loft | Loft platform, guard, ladder or stair access | 1 | $800–$3,000 | $800–$3,000 | Carpentry supplier |
| 19 | Roof ridge cap | Weatherproof ridge component and ventilation detail | 1 | $150–$500 | $150–$500 | Roofing supply house |
| 20 | Chassis supports | Steel brackets, anchors, tie-down and blocking hardware | 1 lot | $500–$2,000 | $500–$2,000 | Metal supply / fastener supplier |
Rough total budget: about $40,000–$75,000.
Typical retail estimates only. Prices can change with region, season, availability, finish level, and the final electrical and plumbing choices.
Rules depend on the country and state, and on whether the project is classified as a trailer, RV, or dwelling. Common topics to confirm with the local authority having jurisdiction include trailer registration, road width and height limits, axle and braking requirements, electrical code, propane rules if used, fire safety, ventilation, plumbing and wastewater handling, zoning, occupancy, and insurance coverage.
Depending on the location, these checks may involve a department of motor vehicles or transport agency, a building department, a planning or zoning office, a fire marshal, a health department, and utility or inspection offices for electrical and plumbing work.