Wi-Fi for schools and education

Synchronised density

Office density is high but uncorrelated — people start and finish things at random. A classroom is the opposite. Thirty-odd devices are told to open the same resource, load the same video or submit the same work at the same instant, and they all contend for the same airtime in the same second. The peak is not the average multiplied by a safety factor; it is a genuinely different shape of load, and it repeats every time a lesson changes.

Then it happens simultaneously in the classrooms either side. In a teaching block, adjacent rooms are close enough that their access points share spectrum, so a design that treats each classroom as an isolated problem will work in one room and fall over when the whole block is teaching.

Construction that varies wildly across one site

Very few school estates are one building. A typical site mixes a Victorian or interwar block with dense masonry and solid internal walls, a 1970s system-built block with concrete panels and steel framing, a modern extension of plasterboard and glazing, and one or more temporary or modular classrooms with metal-clad construction and foil-backed insulation. Each of these attenuates differently, and modular buildings in particular are close to Faraday cages — they need their own access point and their own cable, not coverage borrowed from the main block.

Halls, sports halls and open volumes

A sports hall is a large empty volume with hard reflective surfaces, high ceilings and mounting positions that must survive being hit by a ball. It is prone to multipath, difficult to mount in, and periodically holds the entire school at once for assembly or an exam. A dining hall has the same density problem with a lower ceiling and more absorption from bodies. Both need designing as capacity spaces, not as circulation.

Exam and assessment periods

Digital assessment turns a hall full of candidates into the highest-stakes wireless event in the school calendar: maximum density, sustained connections, simultaneous submissions and no acceptable failure mode. A network that copes with normal teaching can still be short for an exam hall, because the density in that one room during that one hour is far beyond anything the timetable normally produces. It is worth designing and validating for specifically, and worth testing before the day rather than during it.

Corridors, outdoor space and the edges

Devices move between rooms with sessions open, so corridors and stairwells need designed roaming rather than incidental spill from classroom access points. Playgrounds, MUGAs, sports fields and outdoor learning spaces need external-rated hardware, mounting and containment. And the edges of a site — the sports pavilion, the caretaker's workshop, the nursery block — are consistently the places where coverage was assumed and never provided.

Interference nobody thinks to mention

Wireless projectors and screen-mirroring devices, visualisers, wireless microphones, older wireless door entry, cordless phones in the office, science and DT equipment, and the substantial number of personal devices that arrive in bags every morning whether or not policy permits them. All of it is in the spectrum you have to plan around.

Design per classroom, then per block

Every teaching space is treated as its own capacity requirement — devices per room, what they are, what they do at peak — and then the block is designed as a whole so adjacent rooms do not fight for spectrum. In most teaching blocks that means an access point in the room rather than the corridor, at reduced power, on a channel plan drawn across the block rather than per room.

Design for the fleet you are moving to

Device numbers in schools go one way. We ask what the roll-out plan is, whether one-to-one device provision is coming, whether BYOD is permitted or tolerated, and what the ICT strategy expects in three years — then design with that headroom deliberately, and tell you what it costs, rather than sizing to today and letting the network age out early.

Halls and assessment spaces designed as capacity spaces

Sports halls, main halls and dining halls get modelled for full-occupancy load, not circulation coverage, with mounting that is robust and positioned to survive the way the room is used. Where digital exams are run, we validate that specific scenario before it matters.

Segregation designed in, not retrofitted

Staff, pupil, BYOD, guest, curriculum and building-services traffic separated at design stage, with VLAN structure, SSID design and the enforcement points for filtering and monitoring specified as part of the network rather than added afterwards. Filtering and safeguarding policy is set by the school and its provider; our responsibility is that the network is structured so those controls sit where they can actually be applied, that traffic cannot bypass them by attaching to the wrong SSID, and that the segregation is documented well enough to demonstrate. Where a trust already has a standard, we design to it.

Outdoor and estate coverage

Playgrounds, sports fields, pavilions, nurseries and outbuildings designed properly — external-rated hardware, mounting, weatherproofing, and power and data run to positions that never had either. Priced separately from the indoor scheme.

Multi-academy trusts

Where a trust runs several sites, we survey each one on its own merits — no two school buildings are the same — and design to a common standard so the estate can be supported, monitored and budgeted consistently. That means the same platform, the same SSID and VLAN structure, the same documentation format and the same validation evidence at every school, with the access point count and layout genuinely per site.