The cabling standard we hold AV and Wi-Fi installs to.

Retail-fit-out discipline, applied to your office

None of what follows is exotic. It's retail-fit-out discipline applied to an ordinary business, and every rule exists because we've seen what happens when it's skipped.

Home runs, never joined mid-span

Every cable runs unbroken from the patch panel to the outlet. No joins in the ceiling, no couplers behind a wall plate, no "we were half a metre short so we crimped a joiner in".

Why it matters: a mid-span join is an invisible fault waiting for a warm day. Couplers and punched joins degrade the cable's electrical performance, and gigabit or PoE loads will find the weakness long after the tester said pass. Worse, the join is undocumented — when the link goes intermittent, nobody knows the joiner exists, so the tech blames the switch, then the AP, then the driver, and burns hours before anyone opens a ceiling tile. If a run comes up short, the cable gets pulled again at full length. That costs the installer twenty minutes on the day. The joiner costs you a service call every time it acts up.

Cat6A, one cable per future access point — plus spares

We pull Cat6A as standard, and we pull for the floor plan you'll have in five years, not the AP count you have today. Rough rule: one cable to every spot an access point could plausibly go, plus spare runs to the ceiling zones between them.

Why it matters: the labour is the cost of a cable run — the copper is a rounding error. Pulling one extra cable while the ladder is up and the tiles are open adds minutes. Pulling that same cable after the office is fitted out, furniture is in and the ceiling is closed costs a full call-out, and it's disruptive enough that most businesses just live with the dead spot instead. Cat6A specifically because it carries 10 gigabit and full PoE++ power without breaking a sweat, so the cabling outlives two or three generations of the hardware hanging off it. Wi-Fi standards turn over every few years; the cable in your ceiling should not have to.

Labels at three heights

Every run is labelled at both ends and at the patch panel — the outlet, the cable itself near each termination, and the panel port. Same code at all three points, recorded on a plan you keep.

Why it matters: an unlabelled installation works perfectly until the first fault, and then every cable is a suspect. The classic failure looks like this: something dies at 11 pm before a trading day, and a tech is up a ladder with a tone generator testing cables one by one because nothing says what it is. Toning a moderately sized ceiling can take longer than fixing the actual fault. Labels turn "which of these forty cables feeds the counter AP" into a ten-second lookup. They also keep future work honest — the next contractor can extend the system instead of guessing at it.

A 3–5 metre service loop above the ceiling

Every run gets a few metres of slack coiled neatly above the ceiling tile at the device end.

Why it matters: devices move. The AP that's perfect on today's floor plan is two bays out after the next refit; the projector drops from a different batten; the camera needs half a metre more reach after the shelving changes. With a service loop, relocating the device is re-terminating the same cable a few metres away — a short visit. Without it, the cable is cut to exact length and any move means a brand-new pull through a finished ceiling. A tail that terminates taut at the device is the cheapest possible install on day one and the most expensive one every day after.

Power and data on separated paths

Data cabling keeps its distance from mains power — separate tray or catenary where possible, crossings at right angles, and never sharing a hole or lying in contact along a run.

Why it matters: mains cables induce noise into parallel data runs, and the symptoms are the miserable kind — links that negotiate down, packet errors that come and go with whatever load is on the power circuit, AV that hums or drops frames. These faults pass a quick test and fail in service, and they get misdiagnosed as flaky hardware for months. Separation also keeps you on the right side of the electrical rules about segregating services, which matters the day any other trade opens that ceiling. Distance is free at install time. It is very expensive to add later.

What to demand from your cabler

Put these in writing with the quote request:

• Unbroken home runs — no joins, couplers or extensions mid-span
• Cat6A throughout, with runs to future AP positions and spares agreed on a floor plan
• Every run labelled at outlet, cable and panel, with a documented schedule handed over
• 3–5 m service loops above the ceiling at every device point
• Data separated from power for the full path, not just where it's convenient
• Test results for every run, supplied at handover

A good cabler will read that list and shrug — it's how they already work. A cabler who pushes back on labelling or spare runs is telling you what their installs look like two years in. The difference in quote price is small. The difference in what the ceiling costs you over the next decade is not. This is the physical layer under everything on our networks and Wi-Fi and security cameras pages, and if the cabling is part of a relocation, the office move IT checklist covers the rest of the move.

The short version: Cabling faults are cheap to prevent on install day and expensive forever after. Demand unbroken Cat6A home runs, spare cables to future AP spots, labels at both ends and the panel, a service loop above every ceiling tile, and clean separation from mains power. Hand the list to your cabler before they quote — the good ones already work this way.

General guidance only — your site, building rules and licensed-trade requirements may vary, so confirm specifics with your installer.