
Prefabricated Container Office

A prefabricated container office is a modular office building in which electrical and plumbing wiring, partition installation, and interior finishing are completed in advance at the factory. The main structure consists of HDG steel powder-coated frames and metal sandwich panels, offering notable benefits such as ease of relocation, quick assembly and disassembly, moisture resistance, thermal insulation, and cost-effectiveness.
As a direct manufacturer, Wanzhi Steel offers mobile container offices that can be joined side-by-side, stacked in two tiers, and freely configured. They can also be customized with optional modules such as glass curtain walls, staircases, awnings, and private meeting rooms.
- 10 ft, 20 ft, 30 ft, 40 ft
- MOQ: 1 set
- Delivery: 12–18 days
Technical Specifications
| Item | Prefabricated Container Office |
|---|---|
| Frame | Hot-dip galvanized section steel, cold-rolled galvanized steel plate |
| Wall Panel | Metal sandwich panel |
| Roof | Roof sandwich panel |
| Floor | Galvanized square tube keel + fireproof base board + PVC floor covering |
| Doors & Windows | Anti-theft security door, aluminum alloy windows/glass curtain walls/floor-to-ceiling windows |
| Factory Pre-installation | Complete sets of electrical systems complying with GB/US standards, including lighting fixtures, switches, power sockets, exhaust fans and other fittings |
| Customization Options | Exterior colors, internal layouts, glass curtain walls, restrooms, kitchens and more |
Dimension Range (10ft–40ft)
- 10 ft: 2990mm × 2438mm × 2896mm
- 20 ft: 6058mm × 2438mm × 2896mm (Best-selling size)
- 30 ft: 9000mm × 2438mm × 2896mm
- 40 ft: 12032mm × 2438mm × 2896mm


Core Advantages
- Immediate Occupancy: Different from cast-in-place buildings, these units are lightweight and easy to install. They can be put into service with simple assembly upon delivery, making them the top choice for mobile office spaces nowadays.
- Sturdy & Durable: No risks of overloading or structural collapse. All frames are pre-welded in Wanzhi Steel’s factory with uniform, firm welds. Wall and roof panels are fire-retardant, allowing stable service under all environmental conditions.
- Flexible & Multi-functional: The modular structure supports free combination and expansion into large-scale office zones. We also provide customized functional modules including restrooms, staff canteens, gyms and independent meeting room units.
- Reusable & Portable: On-site assembly can be finished within 3 hours, same for disassembly. The units can be rapidly relocated from one construction site to another and ready for office use once reconnected to power supply.


Application Scenarios
- Infrastructure Construction Sites: Project manager offices, engineering technical departments, reception/meeting rooms, rest lounges, gate booths and document archives for highway, railway and real estate projects.
- Commercial & Creative Office Spaces: Administrative offices inside commercial streets and container blocks, temporary on-site offices for business districts, themed studios, and transitional office premises during government office relocation.
- Cultural Tourism & Rural Development: Real estate sales offices, park reception exhibition halls, administrative office zones in development zones, and rural research bases.
- Remote Project Supporting Facilities: Temporary base offices for photovoltaic power stations and water conservancy projects, field command container cabins for military drills, and airport dispatching rooms.


Three Types of Prefabricated Container Offices
- Foldable Container Homes: Divided into X-type foldable and Z-type foldable versions. They can be unfolded by crane right after delivery, and occupy minimal space when folded for low transportation costs.
- Flat Pack Container Homes: Supplied in flat-packed form, ready for quick assembly upon arrival. Both foldable and flat pack types support installation of glass curtain walls and floor-to-ceiling windows for full panoramic daylighting. Custom sizes from 10ft to 40ft are available, with the 20ft model being the most popular choice.
- Detachable Prefab Houses: All components are fully assembled in factory first, then split into separate frames, wall panels and roof panels for separate packaging before shipment, requiring complete reassembly on site with the highest degree of component separation.

All three types support additional glass curtain walls and full-length floor-to-ceiling windows for full natural lighting. Custom sizes ranging from 10ft to 40ft are all available, and the 20ft standard unit has the highest overseas order volume.
Optional Auxiliary Modules
Interior Functional Modules
Staff canteens, independent restrooms, shower rooms, multimedia meeting room units, smoke detection alarm systems and simple kitchen worktops.
Facade Modules
Thermal break aluminum alloy floor-to-ceiling windows and full-view glass curtain walls, outdoor sunshade canopies.


Structural Auxiliaries
Double-layer galvanized steel staircases, safety railings for second-floor balconies, connecting walkways between units.
Exterior Customization
Spraying of corporate LOGOs, more than ten optional exterior baking paint colors.
Electrical Customization
US standard NPT electrical circuits, UK standard BS electrical circuits, solar power supply systems with pre-embedded wiring conduits.


Packaging & Transportation Loading Capacity
| Type | Loading Quantity per 20GP Container | Loading Quantity per 40HQ Container |
|---|---|---|
| Foldable Type | Approx. 6–8 sets | Approx. 14–18 sets |
| Flat Pack Type | Approx. 4–6 sets | Approx. 10–14 sets |
| Detachable Type | Approx. 8–12 sets | Approx. 20–28 sets |
Note: The actual loading number varies based on specific unit sizes (10ft / 20ft / 30ft / 40ft), wall panel thickness and attached auxiliary modules (glass curtain walls, staircases, etc.). The final loading plan shall prevail.


Why Choose Wanzhi Steel?
- Source Factory: Own galvanized steel pipes, PU sandwich panels, and pre-assembled fully automated production lines, eliminating middlemen and markups, with a monthly production capacity of up to 1500 sets.
- International Standards Compliance: Customizable high-temperature thickened insulation, high-salt spray corrosion protection, and US/UK standard electrical systems to meet local requirements.
- Flexible Customization: Container dimensions and internal configurations can be customized to project needs, with precise control over technical parameters such as load capacity, seismic resistance, and insulation.
- Strict Quality Inspection: Before shipment, we conduct comprehensive inspections of water supply, electrical circuits, load-bearing capacity, sealing, and fire prevention to ensure project quality.


Wanzhi Steel is a Chinese prefabricated office building manufacturer with ISO9001 and CE international certifications. We specialize in producing Foldable, expandable, detachable, and packaged office houses. With high-quality service, our products have been shipped to over 120 countries.

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- Prefabricated Container Office
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- Detachable Container House
- X-Type Folding Container House





