How many units does a site office need?

Unit count follows headcount, the split between open and private positions, meeting capacity, storage, and welfare obligations, assessed at the peak of the project rather than at mobilisation. Planning for the peak from the start avoids a second procurement mid-project.

Can units be combined into a larger open office?

Units combine side by side with the dividing walls removed to create larger continuous spaces. The combined arrangement changes the structural, fire, and services design, so it should be specified at the outset rather than attempted on site with units bought as standalone cabins.

Is a container office quiet enough for confidential calls?

It can be, but only if acoustic separation is specified. Partition build-up, door seals, ceiling arrangement, and the treatment of service penetrations determine whether a private office actually offers privacy, and these are difficult to improve once the fit-out is complete.

How is the electrical supply sized?

Load should be calculated from the actual equipment list, including workstations, printing, servers, site instruments, and heating and cooling, rather than a nominal figure per unit. Under-sizing the incoming supply is among the most disruptive problems to correct once the complex is occupied.

Can the office be moved to the next project?

Because the frame is bolted and services terminate at the unit boundary, an office can be dismantled, transported, and recommissioned elsewhere. Anchorage, fire provision, and escape arrangements should be re-verified for the new site rather than assumed to transfer.

What should a site office quotation include?

A comparable quotation states the unit count and combination layout, storeys and access arrangement, envelope and comfort specification, electrical and data scope, interior fit-out boundary, site and base responsibilities, delivery and assembly scope, and the commercial exclusions.

Containers

Modular Workplace Containers

Office and Site Containers That Work From the Day They Land

Q: Are two- and three-storey container offices possible?

Stacked arrangements are common and depend on verified structural capacity, anchorage, unit-to-unit connection, external stairs and landings, guarding, and an escape strategy suited to the occupancy. Units that were not specified for stacking cannot be stacked afterwards.

Q: What fire provision applies to a container office complex?

Detection and alarm coverage across all combined units, emergency lighting, adequate escape routes including from upper levels, travel distances, extinguisher provision, and signage apply to the assembled complex. These follow the rules at the location and should be agreed with the arrangement.

Configurable container workplaces planned around headcount, combined and stacked arrangements, acoustic separation, thermal comfort, power and data capacity, fire provision, security, and redeployment.

Plan Your Site Office Discuss Your Workplace Brief

Planning basis: Headcount, project duration, meeting needs, and expected growth
Workplace program: Reception, open and private work areas, meeting, storage, and welfare
Delivery model: Factory fit-out, transport, placement, assembly, and connection

Workplaces that arrive complete

Office and Site Containers That Work From the Day They Are Placed

Office and site containers bring reception, work areas, meeting rooms, storage, welfare, and technical provision into units that are finished before they leave the factory. Planning starts with headcount, how long the office is needed, and whether it has to grow during the project.

The same system covers a single supervisor cabin on a small job, a combined project office for a construction or infrastructure programme, a sales and showroom unit at a development, and a multi-storey site headquarters with meeting rooms and welfare facilities. What changes between them is the unit count, the fit-out standard, and the services capacity behind it.

Because units combine and stack, a project can start with the minimum arrangement and extend as the workforce grows, provided the structural capacity, escape strategy, and electrical supply were planned for that growth at the outset. Retrofitting a second storey onto units that were never specified for it is rarely possible.

Working on the day it lands

Partitions, electrics, lighting, and finishes are completed before dispatch, so the unit becomes a functioning workplace as soon as it is levelled and connected.

From one unit to a complex

Units combine side by side and stack into two- or three-storey arrangements, letting a single site office grow into a full project headquarters without a new procurement.

Redeployable between projects

Because the frame is bolted and the services are terminated at the unit boundary, the same office can be dismantled, moved, and recommissioned on the next site.

A complete site office program

Spaces Within a Container Office Complex

Each area should reflect headcount, meeting frequency, confidentiality, equipment, welfare obligations, and the way people move between the office and the working site.

01
Reception and Entry
Arrival point, visitor control, boot-off area, notice boards, and a buffer that keeps site dirt out of working areas.
02
Open Work Areas
Desk positions, circulation, daylight, power and data at each position, and enough acoustic separation to hold a phone call.
03
Private Offices
Enclosed rooms for project management and confidential discussion, with partition performance chosen for privacy rather than appearance.
04
Meeting and Briefing
Rooms sized for coordination meetings, toolbox talks, and drawing review, with display provision and adequate ventilation for full occupancy.
05
Document and Plan Storage
Drawing storage, secure records, server or comms position, and lockable storage for site instruments and equipment.
06
Tea Point and Break
Hot drinks, refrigeration, seating away from desks, and the ventilation and surfaces that make daily cleaning realistic.
07
Welfare and Sanitary
WCs, washing facilities, drying provision for wet workwear, and locker space, sized against the number of people based on site.
08
Technical and Comms
Distribution board, data cabinet, heating and cooling equipment, UPS where required, and safe maintenance access.

Work areas balance desk positions, circulation, daylight, power and data at each position, and enough acoustic separation for phone calls.

Stacked arrangements need verified structural capacity, anchorage, unit-to-unit connection, external stairs and landings, guarding, and an escape strategy.

Meeting rooms are sized for coordination and briefing, with display provision and ventilation that copes with full occupancy.

Configuration before production

Fix Headcount, Growth, and Electrical Load Before the Layout

The brief should record the number of people based on site, the split between open and private positions, meeting capacity, storage needs, welfare obligations, operating hours, project duration, and the growth expected at peak. These figures set the unit count, combination layout, and services capacity.

Growth should be planned at the start, not accommodated later. If a second storey or an additional wing is likely, the base units need the structural capacity, anchorage provision, stair position, escape arrangement, and electrical headroom designed in from the first phase.

Electrical load should be calculated from the actual equipment list, including workstations, printing, servers, site instruments, heating and cooling, and any welfare equipment. Under-sizing the incoming supply is one of the most disruptive problems to correct once an office complex is established and occupied.

Fire and escape provision should reflect the assembled complex rather than a single unit. Detection and alarm coverage across combined units, emergency lighting, escape routes from upper levels, travel distances, extinguisher provision, and signage are agreed with the arrangement, not added afterwards.

Whole-complex performance

Comfort, Safety, and Security as One System

A site office that works for the whole project depends on acoustics, thermal comfort, power and data, stacking capacity, fire provision, and security being planned as one arrangement.

Acoustic separation

Site offices concentrate calls, meetings, and coordination into a small footprint. Partition build-up, door seals, ceiling arrangement, and service penetrations decide whether the space is usable for confidential discussion.

Thermal comfort and running cost

A small, highly glazed unit heats and cools quickly. Insulated walls and roof, glazing specification, shading, and correctly sized heating and cooling keep the office workable through summer and winter.

Power, data, and connectivity

Load should be calculated from the actual equipment list, not a nominal figure. Circuit provision, socket density, data cabling, network position, and backup arrangement are agreed before production.

Stacking and access

Multi-storey arrangements need verified structural capacity, anchorage, unit-to-unit connection, external stairs and landings, guarding, and an escape strategy suited to the number of occupants.

Fire safety and escape

Occupied offices require detection, alarm coverage across combined units, emergency lighting, adequate escape routes from upper levels, extinguisher provision, and clear signage.

Security and durability

Site offices hold equipment, documents, and data. Door and window security, lockable storage, external lighting, robust finishes, and coating specification for the exposure protect the asset between projects.

Installation planning should coordinate access, base preparation, lifting, levelling, unit connection, stairs and guarding, utility hookup, alarm commissioning, electrical testing, and handover.

A comparable and complete workplace scope

What Shapes an Office and Site Container Quotation?

A meaningful quotation begins with an agreed headcount, unit arrangement, fit-out standard, services capacity, site, and delivery brief. Compare proposals against the same complex rather than a price per unit.

01Workplace program

Headcount, open and private positions, meeting capacity, storage, welfare provision, operating hours, and expected project duration.

02Unit arrangement

Number of units, combination layout, storeys, external stairs and landings, entrances, escape routes, and expansion interfaces.

03Site and exposure

Location, ground conditions, base or foundation, wind and snow actions, corrosion category, access for delivery, and anchorage.

04Envelope and comfort

Panel build-up, roof arrangement, glazing, shading, acoustic performance, heating and cooling capacity, and ventilation.

05Electrical and data scope

Incoming supply, distribution, circuits, socket and lighting provision, data cabling, comms position, controls, and certification.

06Interiors and fit-out

Partitions, ceilings, floors, doors, ironmongery, blinds, signage, and the boundary between building scope and furniture supply.

07Delivery responsibilities

Design, base preparation, utility connections, production, transport, unloading, placement, assembly, testing, and handover.

08Commercial boundaries

Allowances, exclusions, approvals, warranties, documentation, maintenance, relocation scope, and change procedures.

Build a clear, comparable project scope.

Request a Site Office Quote Discuss Your Workplace Brief

Office and Site Containers That Work From the Day They Land