A portable office cabin gives your team a warm, bright and secure workspace wherever the work is: on a construction site, at a factory, in a yard or alongside an existing building. Karmod builds every office cabin in its own factory from insulated sandwich panels on a galvanised steel frame, and delivers it pre-wired and ready to use within days. You buy it outright, so it stays with you from project to project.
A portable office cabin, also called a site office or modular office, is a self-contained, factory-built workspace that is lifted onto site by crane and can be moved again when your project changes. Unlike a traditional building, it needs no on-site construction beyond a simple base, so you can have a fully working office in a fraction of the time. Our office cabins are built on the same construction as our insulated panel cabins and portable cabins, fitted out specifically for office use.
As the manufacturer, we control every stage, from the steel frame to the final fit-out, so you deal with one company from quote to delivery. Each cabin is built to order in your choice of size and layout, then checked in our factory before it ships. Because there are no hire fees, the cabin becomes a long-term asset for your business, ready to be reused on your next site or kept as permanent extra office space.
Setting up a full site compound? Combine your office with site welfare cabins, a canteen cabin, toilet blocks and a security hut at the gate, all from one manufacturer.
Single cabins are built up to 2.4 × 6.0 m (8 × 20 ft). For more space, cabins are linked side by side to create larger offices with meeting rooms, reception areas and private offices.
| Size | Floor area | Typical use | Capacity |
|---|---|---|---|
| 2.4 × 3.0 m (8 × 10 ft) | approx. 7 m² | Single office | 1–2 people |
| 2.4 × 6.0 m (8 × 20 ft) | approx. 14 m² | Site office | 2–4 people |
| 2 linked cabins | approx. 29 m² | Office and meeting room | 4–6 people |
| 3+ linked cabins | 40 m² and above | Multi-room office complex | 6–10+ people |
Prefer a lightweight, rounded unit? Our GRP modular buildings can also be fitted out as small offices.
Every office cabin comes with LED lighting, sockets and a distribution board as standard. You can add air conditioning or heating, desks and shelving, internal partitions, a kitchenette or toilet, data cabling for computers and CCTV, security shutters and your own corporate colours and signage.
Hiring a portable office makes sense for a few weeks. For longer projects, or if you run several sites a year, buying usually costs less over the life of the cabin, and you can reuse it from site to site.
Standard cabins are usually ready to ship within 1–2 weeks of order. Transport time to the UK will be confirmed with your quote. Cabins arrive fully assembled and are lifted into place by crane. You will need a level concrete base and a power supply connected by a qualified electrician, and our team will guide you through every step.
| Feature | Specification |
|---|---|
| Frame | Galvanised steel, 1.5 mm |
| Walls | Sandwich panels with polyurethane insulation (42 kg/m³) |
| Roof | Insulated trapezoidal steel |
| Doors and windows | Reinforced steel doors, double-glazed windows |
| Floor | Anti-slip vinyl or ceramic tile |
| Electrics | LED lighting, sockets and distribution board |
| Heating and cooling | Ready for air conditioning or heating |
| Wind resistance | Tested up to 120 km/h |
| Customisation | Layout, colours, branding and signage |
All Karmod office cabins are made in our own factory under an ISO 9001:2015 quality management system and carry CE marking. View our certificates or see our projects.
Start with how many people will use the office and what else it needs to hold. As a rough guide, allow around 3–5 m² per person for desks and walkways, plus extra space for a meeting table, plan chest or kitchenette.
Not sure which size you need? Send us your team size and how you plan to use the space, and we will recommend a layout.
A little preparation makes delivery quick and smooth:
Many customers order their office together with other units from our range, so the whole site is supplied by one manufacturer with one point of contact from quote to installation. Tell us what your site needs and we will put together a single quote covering every unit.
It provides a ready-to-use workspace for site management, administration or extra office space, on construction sites, at factories or beside an existing building.
Most cabins are ready to use within 1–3 days of delivery, once placed on a prepared base and connected to power.
Yes. Cabins are lifted by crane and moved by lorry, so you can reuse them from project to project.
Yes. Walls and roof are made from insulated sandwich panels, and cabins can be fitted with air conditioning or heating for year-round comfort.
It depends on the size of the cabin, where it will stand and how long it will stay. Rules vary between local planning authorities, so we recommend checking with yours before ordering.
Yes. Cabins can be linked side by side to create larger offices with meeting rooms and reception areas.
Yes. Options include partitions, desks, kitchenettes, toilets, colours and signage.
With proper care, a Karmod office cabin has a service life of more than 15 years.
Hiring suits short projects of a few weeks. For longer projects or several sites, buying usually costs less over the life of the cabin.
Standard cabins are usually ready to ship within 1–2 weeks of order. Transport time to the UK will be confirmed with your quote.