The Best Ways to Hide Wires Behind a Media Unit

When buying a media unit, prioritize pre-drilled cable ports, shelf depth of at least 40 cm, and adjustable shelving for varying device heights. A media unit with built-in ventilation gaps reduces heat buildup from AV equipment placed in enclosed cabinets.

Shopping for a media unit without thinking about cables first is, I would argue, one of the most expensive mistakes in living room planning. I once worked with a client who had purchased a beautifully crafted oak unit, only to discover it had no rear cable management provision whatsoever. Every device had a wire snaking visibly along the baseboard. It was a costly lesson that a five-minute conversation in the showroom could have prevented entirely.

The most practical feature to look for, ahead of aesthetics, is a rear panel with pre-cut cable ports. These are typically circular openings of around 5 cm in diameter, positioned to align with the internal shelving. Quality media units in solid wood often include these as standard, and it is worth confirming port placement before you buy rather than assuming it is there.

Pay close attention to internal shelf depth too. A depth of 40 cm gives you enough room to route a cable behind a set-top box or gaming console without the unit sitting awkwardly away from the wall. According to the Wikipedia overview of cable management, consistent organizing of cables improves both safety and the longevity of the cables themselves, which is worth keeping in mind when you are investing in a unit you want to last a decade or more.

A media unit should measure between 120 cm and 180 cm wide for a standard living room, with the unit extending at least 15 cm beyond the TV screen on each side for visual balance.

The width question matters far more than most people realize, because it directly affects how many cable routing options you have. A narrower unit forces all cables into a tight central path, rather like squeezing a six-lane highway into a country road. A unit that properly spans the viewing wall gives you the flexibility to route power and signal cables along separate internal paths, reducing interference and keeping everything genuinely organized.

Standard Media Unit Width and TV Size Compatibility

The measurements below reflect standard industry guidance and practical installation experience across a range of living room proportions. Choosing the wider end of the recommended range consistently delivers better cable management outcomes than sizing purely for TV visual balance alone.

The table makes clear that rear cable clearance needs to scale with screen size, and rightly so. Larger screens typically mean more connected devices, more power cables, and longer HDMI runs, all of which need somewhere to go without bunching up dangerously behind the unit.

I always advise clients to think of a media unit as the engine room of the space, not just a surface for the television. A 65-inch TV with two gaming consoles, a soundbar, and a streaming device generates a significant cable load, and sizing the unit at the lower end of the recommended width makes neat cable management genuinely difficult. Go wider where your room allows it (you will not regret it).

Hiding wires behind a media unit requires routing all cables through rear-panel ports, securing cable bundles with hook-and-loop ties every 20 cm, and fitting a plastic cable raceway along the baseboard for any wall runs exceeding 30 cm.

This checklist covers the steps for hiding wires behind a media unit from initial assessment through to final confirmation.

1. Measure the rear panel of the media unit to identify existing cable ports or gaps before purchasing any additional management hardware.
2. Gather cable raceways, hook-and-loop fasteners, a cable sleeve, and wall-pass-through grommets before beginning the installation.
3. Label each cable at both ends with adhesive cable tags before routing anything through the media unit's interior.
4. Route power cables and signal cables along opposite interior sides of the media unit to prevent electromagnetic interference.
5. Thread cables through the media unit's rear port or a 5 cm wall grommet to conceal horizontal baseboard runs from view.
6. Bundle cables using hook-and-loop fasteners every 20 cm along vertical or horizontal runs inside the unit.
7. Fit a cable raceway along the baseboard for any exposed cable runs between the media unit and the nearest wall outlet.
8. Confirm all cables remain accessible by leaving a 10 cm service loop at the rear of the unit for future disconnection.

The single biggest mistake I see at this stage is skipping step three entirely. I have been on enough site visits where a client went to swap out a device, pulled a cable, and had absolutely no idea where the other end was routed. Adhesive cable labels cost almost nothing and save a disproportionate amount of frustration down the line.

For rooms where wall outlets are not conveniently positioned behind the unit, guidance from the UK Health and Safety Executive on domestic electrical safety outlines the recommended practices for routing cables near power sources, and it is worth reviewing before committing to any in-wall solution.