The key difference between a TV unit for a 55 inch TV and one for a 75 inch TV is width. A 55 inch screen is roughly 123cm wide, so a unit of around 140cm to 160cm usually looks balanced. A 75 inch screen is roughly 166cm wide, which calls for a unit of about 180cm or more. Beyond width, a larger screen also changes the weight the unit must carry, where the TV’s feet sit, how far back you need to sit, and how much the whole wall dominates the room.
Our modern TV units UK range covers both compact and extra wide designs, and the right choice depends on the screen, the room and how you watch. This guide sets the two sizes side by side so the differences are easy to see.
TV sizes are measured diagonally from corner to corner, not across the width. That is why a 75 inch television is considerably larger than the figure suggests when compared with a 55 inch model. The approximate dimensions for standard widescreen TVs are:
Exact figures vary slightly between models because of bezel thickness, so always check the manufacturer’s dimensions before choosing a unit. The difference of more than 40cm in width is the single biggest factor in the decision.
A TV unit should always be wider than the screen it supports. When the screen overhangs the unit, it looks unbalanced and can be less stable. A comfortable margin on each side also leaves room for a lamp, speaker or decorative object.
For a 55 inch TV, units from about 140cm upwards give a pleasing proportion. Many compact rooms suit something in the 140cm to 160cm range, which sits neatly on a chimney breast or between alcoves.
For a 75 inch TV, aim for 180cm or wider. Some households choose units of 200cm or more, which creates a strong horizontal line and allows the screen to sit within a generous composition. In a smaller room, however, that width can feel overwhelming, which is why many people with larger screens prefer to wall mount them above a slightly shorter unit.
These proportions apply across most modern living room furniture UK layouts, where the TV wall is usually the main focal point and needs to feel balanced against the sofa opposite.
Larger televisions are heavier. A 75 inch model typically weighs significantly more than a 55 inch one, and the difference increases once you add a soundbar and other devices.
Check the weight capacity of the unit’s top surface, particularly if you plan to stand the TV on it. Solid wood, thick veneered boards and sturdy metal frames cope well with heavier screens. Glass units can also work if the glass is toughened and the manufacturer confirms the load. Always compare the stated capacity with the actual weight of your television and equipment.
Many modern televisions use two feet placed near each end of the screen rather than a single central pedestal. On a 75 inch TV, those feet can be well over a metre apart. That means the unit’s top must be wide enough, and deep enough, to hold both feet securely.
On a 55 inch model the feet are closer together, so compact units usually accommodate them easily. With a larger screen, check the foot spacing in the TV’s specification before buying the unit. Some TVs offer an alternative central foot position, which can help on narrower furniture.
A comfortable guide is for the centre of the screen to sit roughly at eye level when you are seated. Because a 75 inch TV is taller, its centre sits higher when placed on the same unit as a 55 inch model. To compensate, larger screens often look and feel better on a lower unit.
If you are wall mounting, the same principle applies: avoid placing a large screen too high. Mounting it just above a low unit keeps the arrangement connected and reduces neck strain. Our wall TV brackets UK collection includes tilting options that help angle a larger screen gently downwards if it must sit a little higher.
A common guide for modern high resolution screens is to sit around one to one and a half times the diagonal screen size away. In practice that means:
Many UK living rooms, particularly in terraced houses and flats, suit a 55 inch TV well because the sofa sits relatively close to the wall. A 75 inch screen works best in larger lounges, open plan spaces or dedicated media rooms where you can sit further back.
Room width matters too. A 75 inch TV on a 200cm unit takes up a lot of wall. In a narrow room, that can make the space feel dominated by the television.
Wider units naturally offer more storage, which is a genuine advantage of choosing furniture for a larger screen. A unit sized for a 75 inch TV might include four doors or a mix of drawers and cupboards, enough for consoles, media players and household odds and ends.
Compact units for 55 inch screens have less space, so plan carefully. Look for adjustable shelves, cable management and at least one closed compartment for devices you would rather not see.
Corner placement often suits a 55 inch TV in a room where no single wall works, such as a lounge with a bay window and several doors. A corner TV stands UK sale design can hold a mid sized screen neatly while freeing up wall space elsewhere.
Corner placement is less practical for a 75 inch screen. The width of the TV means it projects a long way into the room, and few corner units are large enough to support it safely.
If you choose a 75 inch TV, a few design decisions help it sit comfortably in the room:
Audio equipment changes with screen size too. Many people pair a larger television with a longer soundbar, and some add a subwoofer or rear speakers. On a unit for a 75 inch TV, check there is space for a soundbar in front of the screen without it blocking the bottom edge of the picture, and look for a compartment large enough for a subwoofer if you plan to use one.
With a 55 inch setup, a compact soundbar usually sits comfortably on top of the unit or on an open shelf. Either way, open or mesh fronted sections allow sound to travel freely, whereas solid doors can muffle speakers placed inside.
Many people upgrade their television and keep the old unit. This rarely works well. A 75 inch screen on a unit designed for a 55 inch model will overhang the edges, look top heavy and may not be stable. If you are moving up in size, plan for a new unit or wall mount the screen above your existing one, provided it still looks balanced.
For help working out whether a larger setup will fit, our guide to media wall unit measurements for UK rooms walks through every dimension you need.
Start with the television, then consider the room. Measure the screen, check the foot spacing and weight, and compare them with the unit’s width and capacity. Then think about how far back you sit and how much wall you can give to the TV. With those facts in hand, the right unit usually becomes obvious.
You can compare compact and wide media furniture across our collections at Furniture in Fashion.
A 55 inch TV is about 123cm wide, so a unit of roughly 140cm to 160cm gives a balanced look with space at each end.
A 75 inch TV is about 166cm wide, so aim for a unit of around 180cm or wider.
It is not recommended if the screen overhangs the edges. Wall mounting the TV above a smaller unit is safer and often looks better.
It can be. If your sofa is closer than about two metres from the wall, a 55 inch or 65 inch screen is usually more comfortable.
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