What size site office do we actually need?

Tell us the headcount at the busiest month of the programme rather than at mobilisation, and whether the client's representative will be sitting with you. We work the size back from that. If you give us a number instead, we will usually ask you to check it — sizing for the mobilisation team is how this product goes wrong, and it is not recoverable once the cabin is built.

How is a site office priced, and what changes the figure?

The size, the partitions, whether a toilet compartment is included, and the finish level. Tell us the peak-month headcount, what has to fit in the room and your programme dates, and the quotation is itemised against those rather than against a catalogue size. The figure worth comparing is not the purchase price but the purchase price divided across the projects the office will serve.

How many times can it be moved?

Many times, because we build the base frame and the panel fixings for repeated lifting rather than for a single placement — heavier and stronger than a standard static frame. That is a deliberate difference, and it is worth putting to any supplier before ordering: a cabin meant to stand in one yard and one meant to travel between sites are not built the same way, and once both are finished and painted you cannot tell them apart by looking. The sections and ratings for your unit are named in your drawing and specification rather than here.

How quickly can we get one? We mobilise next month.

Standard sizes are fastest. Partitions, a toilet compartment and custom dimensions take longer because they are built to your drawing. Tell us the mobilisation date on the first call and we will say plainly whether it can be held, rather than agreeing and revising later.

Can a toilet compartment be built into the office itself?

Yes, as a partitioned compartment with fixtures and the plumbing points brought out ready to connect. On a site with no facilities yet it pays for itself in time not lost to people walking off site to find one. You provide the water supply and the drainage arrangement at your end.

Our ground is firm and level. Is that enough?

For a single-storey office, firm and level ground is generally enough — no foundation and no masonry. Stacked units and larger joined offices need a simple plinth or footing pads, and we will tell you exactly what to prepare before the vehicle is loaded rather than when it arrives.

It sits on a client's premises. Can it be finished to look deliberate?

Yes, and it is finished in the factory rather than touched up on site. On someone else's premises your site office is the most visible thing your company owns for the length of the job, and a unit in your own colours with your name on it costs very little more than a plain one.

It will be occupied all day through summer. Will that be bearable?

Only if the panels are properly insulated, and this matters more on a site office than on most cabins because it is occupied continuously rather than visited. A room that becomes unusable by afternoon stops being used at all, which defeats the point of having one. Insulation is the specification line to check.

Can you move a cabin we already own?

Yes. We handle relocations for cabins supplied by anyone. Tell us the two locations and give us about a week's notice, so the vehicle and the lifting can be arranged properly at both ends rather than improvised on the morning.

Should the store cabin be ordered at the same time as the office?

It is usually simpler and cheaper to do so — one delivery, one placement visit, and both units finished the same way so the site looks organised from the first week. Ordering the store later means a second mobilisation for a single cabin, which is the expensive way to buy it.

Prefabricated Site Office Manufacturers in Jigani, Bangalore

If you build for a living, you have run a project out of a bad site office at least once. Too small by month three. Nowhere for the client to sit. Drawings curling on a table in the corner. Everybody standing outside because there is no room in there and it is hot anyway. This page is written for that — not for a factory owner adding a cabin, but for the person who has to run a project from one, two or three times a year, and live with whatever they chose for the length of each job. Two decisions decide whether that goes well, and both are made before anything is ordered: what size you buy, and what you compare the price against. Neither is about the cabin. Porta Cabin Systems builds prefabricated site offices and delivers them across Jigani and south Bangalore — sized for how a project actually goes, and built to be lifted and taken to the next one.

Call About a Site Office WhatsApp the Programme Dates

Illustrative image. Final specification is as per the approved quotation.

Primary product in Jigani

Prefabricated Site Office

Interior of an office cabin finished in grey and green panels, with desks and mesh chairs along one side, a wall-mounted distribution board, sockets at desk height and recessed ceiling lights — Illustrative image. Final specification is as per the approved quotation.

A complete office room on a steel base frame, finished before dispatch, craned into place and usable the same day. Built to be lifted off again and taken to your next project. The size is worked back from the headcount at the busiest month of your programme, not from a catalogue. Tell us that number and what has to fit in the room, and the layout follows from it.

Availability

Available for sale and on rent

Available sizes

From a single supervisor's room up to a full project office with a partitioned cabin, meeting area and records room. Units join together and stack where the yard is committed to material. Sized from the peak-month headcount rather than from a catalogue.

Specifications

Panel, frame, flooring, ceiling, joinery and electrical scope are finalised against the approved quotation and drawing, along with any air-conditioning provision, partition, toilet compartment or drawing rack.

View Prefabricated Site Offices

Send an enquiry Call About a Site Office WhatsApp the Programme Dates

Final specifications, sizes and pricing are as per the approved quotation. See the full product page for the complete specification.

A Room You Take With You to the Next Job

A complete office room on a steel base frame, with insulated panel walls and roof, flooring, door, windows, wiring, lights and sockets, finished before it leaves our facility. It arrives on a vehicle, is craned into position, and is usable the same day. Level, firm ground is enough for a single-storey unit — no foundation, no masonry, no waiting. When the job finishes it is lifted back onto a truck and taken to your next site. That last part is the whole point, and it is the part most people leave out when they are comparing prices. You are not buying a room for this project. You are buying a piece of equipment that will serve several, and the two decisions below both follow from that.

A Project Has Three Phases and the Office Has to Survive All Three

**Mobilisation.** You, an engineer, maybe a supervisor. Somewhere to work, store drawings and lock things up. It feels roomy, and that is the trap. **Peak.** Your site team, subcontractor supervisors, the client's engineer, a safety officer, and whoever turned up unannounced. Now it needs work space, a table people can stand around, somewhere private for a difficult conversation, records, and a queue that does not spill into the yard. **Handover.** You, a couple of people and a great deal of paperwork. Snagging lists, documentation, final measurements, and a base until the last day. An office sized for mobilisation is the one holding nine people and a laptop bag on every chair by month three. The room did not shrink; the programme caught up with it.

Sizing for the Busiest Month, Not the First

Do not size the office for the team you start with. Size it for the busiest month of the programme — your people, plus subcontractor supervisors, plus a client representative who needs somewhere to sit. If you are not certain what that number is, it is usually higher than the first guess, because the first guess is nearly always the mobilisation team. Count the peak month properly before you ask anyone for a price. Tell us that number rather than a size in feet, and tell us what has to happen inside the room. We will work the size back from it. If the number you give us does not support the size you have asked for, we will say so rather than quoting what you asked for and letting you find out on site.

What Actually Goes Inside a Working Site Office

Contractors know this list. It still gets forgotten at ordering stage, because ordering is done in square feet rather than in what has to fit inside them. **A table people can gather around.** Not a desk — something four or five people can stand at with a drawing open. This is where the decisions actually get made, and it is the first thing squeezed out of a room that is too small. **Drawing storage that is not the floor.** A rack or a wide flat surface. Rolled drawings in a corner get damaged, and the one you want is at the bottom. **Somewhere lockable for records.** Measurement books, bills, test certificates, correspondence. Losing these is expensive in a way that only shows up months later. **Wall space.** Programme chart, safety notices, drawings, emergency contacts, site layout. A cabin with windows on three walls looks bright and leaves you nowhere to put any of it. **A key cabinet and a first-aid point.** Small, always needed, never in the plan. **Somewhere for the sign-in register**, near the door where people actually pass it. **Somewhere for a private conversation.** Commercial discussions, a subcontractor issue, a call you would rather not have overheard. A partitioned corner is enough — but only if you asked for it before manufacture. All of this costs almost nothing at drawing stage and is an awkward retrofit afterwards. Ask for it while the cabin is still a drawing.

Interior of an office cabin lined in timber boarding, with a long worktop under the windows, a whiteboard on the end wall, glazed storage cabinets and shelves of files and folders — Illustrative image. Final specification is as per the approved quotation.

From a Single Room to a Joined Complex

A single room suits a small job, or a supervisor's cabin standing alongside a main office. Add a partition and you get an open work area plus a closed room for the project in-charge and the conversations that should not happen across a desk. Beyond that it grows by joining and stacking. A defined meeting area keeps client and consultant meetings off your own desk. An attached toilet compartment earns its place on a site with no facilities yet, because people stop leaving the site to find one. Two or more cabins joined together give you a main office, a meeting room, a records room and space for contractors. Stacking puts an office over a store, or two offices over each other, where the yard is committed to material. A separate store cabin is usually the second thing ordered, and it is worth ordering first: it keeps tools and materials out of the room people are trying to work in.

Interior of a timber-lined office cabin arranged for meetings, with a large table and six chairs in the centre, storage cabinets at the far end and box files shelved along one wall — Illustrative image. Final specification is as per the approved quotation.

Office cabins stacked two levels high in dark grey and green profiled steel, with an external steel staircase and a railed walkway serving the upper level — Illustrative image. Final specification is as per the approved quotation.

The Base Frame Is Built for the Second Move, Not the First

A site office is lifted, trucked and set down again every time you move. A cabin that will do that repeatedly is not built the same way as one designed to stand in a yard and never move, and the difference is in the base frame and how the panels are fixed to it. We build that frame deliberately heavier and stronger than a standard static cabin frame, because these units are bought to travel between projects rather than to be placed once. The panel fixings are specified to match it, so the shell stays square through repeated lifting instead of working loose after the second or third move. What we will not do is put a number on that here. Section sizes, thicknesses and load ratings belong in the approved drawing and specification for your own unit, not in a web page — ask for them alongside your quotation and they will be named there. The difference is invisible once a unit is finished and painted, which is why it is worth settling before you order rather than after the second relocation. Ask any supplier how their frame and panel fixings are specified for repeated lifting. One that cannot answer in detail is quoting you a static cabin. The rest of the build — panels, roof, flooring, ceiling, doors, windows, wiring, lighting, sockets and the distribution board — is finalised against the approved quotation and drawing, along with any air-conditioning provision, partitions, drawing rack or exterior paint you have asked for.

Workers in high-visibility vests and helmets fitting insulated wall panels into the steel frame of a cabin under assembly, with stacked panels on the floor and a crane beyond the opening — Illustrative image. Final specification is as per the approved quotation.

Cost Per Project, Not Cost Per Cabin

This is the calculation that decides it, and it is the one most people never do. A site office is not an expense against one job. If you work continuously it is a piece of equipment that serves project after project. So divide the purchase price across the number of projects you will realistically use it on, and compare that figure — not the purchase price — against what you would spend hiring one every time. Do that arithmetic with your own numbers rather than ours. How it comes out depends on how many projects you actually run, how long each one lasts, and what hire costs you locally, and we are not in a position to tell you any of those. **Where renting genuinely wins.** A first project, when cash is tight. A job in a location you will not work in again. An unusually large office needed once. Or gaps between projects long enough that storing an idle cabin becomes its own nuisance. **The middle path.** Own one or two standard offices that travel with the business, and rent the extras when a large job needs more. You are not paying hire charges on the units you always need, and not sitting on units you rarely do. Either way, tell us how long the programme runs and what you have lined up after it. That second answer usually decides the first.

Moving It to the Next Site

A site office should be planned into your demobilisation the same way scaffolding is, and it usually is not. The cabin needs a hydra and a vehicle at both ends, and both have to be booked. Access at the outgoing site has to still work at the end of the job — yards get built up, and a cabin that came in over open ground sometimes has a finished building in the way when it wants to leave. And the receiving site has to be ready for it, which means level ground and access sorted before the truck arrives rather than while it waits. We handle relocations, including for cabins bought from someone else. A week's notice rather than a day's makes it a simple morning at both ends.

Placing It Where It Will Still Make Sense in Month Six

What we settle before dispatch is the site end: how you enter the plot, whether the approach is firm enough for a loaded vehicle after rain, where the hydra can stand and swing clear of everything, and exactly where the cabin comes to rest. That last one is worth two minutes of thought. Put the office near the gate so visitors do not walk through the work area, with a view of the site if you can get one, and clear of where the building and the material stacks are going. An office that ends up in the middle of a project gets moved once the project grows around it, and that is a cost you chose at placement.

Reaching Sites Around Jigani

We supply prefabricated site offices across Jigani and the surrounding south Bangalore industrial belt, and deliver across Bangalore, Karnataka and other states. Contractors working further out are no harder to reach. If you are not sure whether your site is covered, ask — it almost certainly is.