Short answer
A well-designed office network starts with Cat6A copper (or fibre) structured cabling laid to ISO/IEC 11801-2, a ventilated and fire-protected comms room kept at 18–27°C, and a layout that is planned alongside power, HVAC and ceilings rather than after them. Decide the cabling category, rack locations, cooling and fire protection at design stage, because retrofitting them into a finished office costs far more.
What "structured cabling" means
Structured cabling is a standard, vendor-neutral cabling system that connects every desk, access point and device to a central comms room through defined links. It replaces ad-hoc cable runs with a documented hierarchy that outlasts any single network upgrade.
Terms used in this guide:
- Horizontal cabling: the copper or fibre from the floor outlet to the floor distributor (patch panel in the rack).
- Backbone cabling: links between comms rooms, floors or buildings, usually fibre.
- Permanent link: the fixed cable between the outlet and the patch panel, up to 90 m.
- Channel: the complete path including patch cords at each end, up to 100 m.
- Comms room / MDF / IDF: the main and intermediate distribution rooms that house racks and network equipment.
The standards that apply
India has adopted the international generic cabling standard for offices. The Bureau of Indian Standards lists IS/ISO/IEC 11801-2:2017, "Generic cabling for customer premises, Part 2: Office premises", as identical to the ISO/IEC original. In practice, designers also work to the ANSI/TIA-568 series for performance categories, testing and labelling. The standard you name in the tender matters, because it defines what the installer must test and certify.
Specify three things in the contract: the category or fibre grade, the standard it is tested to, and a requirement for a full certification report for every link.
Cat6 vs Cat6A vs fibre: which to choose
| Option | Bandwidth | 10 Gb/s reach | Best used for |
|---|---|---|---|
| Cat6 | Up to 250 MHz | About 55 m | Small offices where 1 Gb/s to the desk is enough |
| Cat6A | Up to 500 MHz | Full 100 m | Most new offices, Wi-Fi access point uplinks, future-proofing |
| Multimode / single-mode fibre | Very high | Far beyond 100 m | Backbones between rooms and floors, server uplinks |
For most new fit-outs, Cat6A to the desk and to every Wi-Fi access point is the safer choice. The extra material cost is modest compared with re-cabling later, and Cat6A carries 10 Gb/s over the full 100 m channel. Use fibre for the riser and for links to the server room.
Planning the floor layout
Outlets and density
Plan data points per workstation, then add points for printers, meeting-room screens, video-conferencing units, reception, pantry devices, access control and CCTV. Many offices run out of ports in meeting rooms first, so allow generous spares there.
Wi-Fi access points
Treat Wi-Fi as a cabled network. Every access point needs its own Cat6A drop, ideally ceiling-mounted at a planned location. India opened the lower 6 GHz band (5,925–6,425 MHz) for indoor licence-free use in January 2026, which makes Wi-Fi 6E and Wi-Fi 7 deployments practical. Those access points can draw more throughput and power, so plan Cat6A and PoE capacity at the switch.
Pathways
Choose between ceiling cable trays, under-floor trunking and wall conduits early. Keep data cabling separate from power cabling to avoid interference, and cross at right angles where they must meet. Leave 30–40% spare capacity in trays and conduits. The route you pick interacts with the false ceiling and the HVAC layout, so coordinate it with the HVAC design and electrical design.
Designing the server or comms room
A server room is an enclosed, climate-controlled room for servers, storage and core network equipment. A smaller comms room holds only patch panels and switches. Both need the same basics.
Location and construction
- Choose a room away from water pipes, pantries and washrooms, and avoid placing it directly below or above wet areas.
- Keep it near the incoming service entry and central to the floor to limit cable lengths.
- Use fire-rated partitions and a solid or fire-rated door that opens outward, with a controlled-access lock.
- Seal all cable penetrations with fire-stopping material.
- Size the door and passages for the largest rack or UPS unit.
Temperature and humidity
ASHRAE's recommended envelope for typical IT equipment is 18–27°C, with a dew point between −9°C and 15°C and relative humidity not above 60%. The allowable range is wider (15–32°C for Class A1), but running at the extremes reduces reliability. In Indian summers, comfort-cooling splits sized for people are rarely enough: size dedicated precision or high-sensible-heat cooling for the equipment load, provide redundancy (N+1) for critical rooms, and keep the room under positive pressure from filtered air where practical.
Racks and airflow
Use standard 19-inch racks with front-to-back airflow, and separate hot and cold aisles where there are several racks. Provide cable management, label every port and leave clear working space at the front and back of each rack.
Power and earthing
Feed the room from a dedicated electrical circuit through a UPS with automatic bypass, backed by DG power. Use separate, clearly labelled circuits for racks, install a dedicated clean earth as the design requires, and provide emergency power-off controls and surge protection. Details on load and backup are covered in our electrical design guide.
Fire detection and suppression
Server rooms need early smoke detection, such as aspirating detection, in addition to normal detectors. Gaseous clean-agent suppression is widely used in small and medium server rooms because it does not damage electronics, but it requires a well-sealed room. Large data halls often use pre-action sprinklers instead. Detection should also cover cable trays and any raised-floor or ceiling void. Standards such as IS 2189 for detection systems and the National Building Code 2016 Part 4 on fire safety apply, and newer national guidance for data-centre occupancies is evolving, so confirm the current requirement with your fire consultant and the local fire authority. Our office fire safety guide covers approvals in more detail.
Connectivity, telecom and in-building coverage
Plan at least two diverse internet service providers entering by separate routes. Reserve space in the comms room for ISP equipment and for cellular repeaters or in-building solutions. Telecom regulators have been reviewing how property owners can deploy in-building coverage under the Telecommunications Act, 2023, so check the building's existing arrangement before designing your own.
Security, access control and BMS
CCTV, access control and building management systems often share cabling and the network. Put them on separate VLANs, document their power needs and agree who administers them.
Testing, documentation and handover
- Certification testing: every link tested with a certified field tester, with results delivered as a report.
- Labelling: consistent labels at the outlet, patch panel and in the as-built drawings.
- As-built drawings: outlet layout, tray routes, rack elevations and riser diagrams.
- Warranty: a manufacturer or installer warranty on the cabling system.
- Commissioning: cooling failure, UPS transfer and fire alarm interface tested together.
Include these items in the handover pack. Our handover checklist and snagging guide show how to verify them.
Cost: where IT sits in a fit-out budget
Officea's published 2026 rate card is per sq ft with GST extra, and the cost of cabling and server-room work sits inside the fit-out scope you choose.
| Tier | Officea 2026 rate | Typical profile |
|---|---|---|
| Basic | ₹1,800 | Functional finishes, standard lighting |
| Medium | ₹2,200 | Better laminates, branded carpet tile, task lighting |
| Good | ₹2,600 | Glazed cabins, premium carpet tile, better meeting-room AV |
| High end | ₹4,500 | Natural stone, bespoke joinery, statement lighting |
These are Delhi NCR and Chandigarh rates; Bangalore, Mumbai, Pune, Hyderabad, Chennai and Goa run about 10% higher. What moves the IT number: cabling category, number of access points, the size and redundancy of the server room, cooling choice, fire suppression type, and AV and video-conferencing scope. A dedicated server room with its own cooling and clean-agent system is a separate line in the BOQ, so ask for it to be priced separately. See the office fit-out cost guide for how these lines fit together.
Common mistakes to avoid
- Putting the server room in a leftover corner without cooling or fire separation.
- Choosing Cat6 and later needing Cat6A for Wi-Fi uplinks.
- Running data and power in the same tray without separation.
- Skipping spare capacity in trays and rack space.
- Treating IT as a separate vendor with no coordination with ceilings, HVAC and electrical.
How Officea approaches IT infrastructure
Because Officea runs design and build and turnkey delivery under one contract, cabling routes, rack locations, cooling and fire protection are drawn together with the ceiling, HVAC and electrical plans. Officea delivers projects in every state in India with a dedicated on-site project team, and has offices in Delhi, Gurgaon, Noida and Bangalore. To see how your floor would work, request a complimentary site visit and a layout and budget estimate through the enquiry form below. Related: MEP works.
Frequently asked questions
Should I use Cat6 or Cat6A for a new office?
Choose Cat6A for most new offices. It supports 10 Gb/s over the full 100 m channel and suits Wi-Fi access point uplinks, while Cat6 reaches only about 55 m at 10 Gb/s.
What temperature should a server room be kept at?
ASHRAE recommends 18–27°C for typical IT equipment, with relative humidity not above 60%. Keep supply air within this range and monitor with sensors that alert before limits are reached.
Does a small office need a separate server room?
Not always. A small office can use a lockable, ventilated comms cabinet or room. Once you hold on-site servers, storage or a UPS bank, a dedicated cooled room with fire protection is safer.
What fire suppression is used in a server room?
Small and medium rooms commonly use a clean-agent gas system with early smoke detection. Large data halls may use pre-action sprinklers. Confirm the choice with your fire consultant and local fire authority.
How many data points should I plan per workstation?
Plan at least two per workstation, then add points for access points, printers, screens, video-conferencing, access control and CCTV, plus spares in meeting rooms.
Who should handle IT cabling in a fit-out?
Ideally the same team coordinating ceilings, HVAC and power, so routes and rack space are planned together. A design-and-build or turnkey contract keeps one party accountable for the result.