What size TV unit is right for your room?

Match the unit width to the screen size, not the other way round. A 43 inch TV sits well on a unit around 90-120cm wide, a 55 inch TV needs roughly 140-160cm, a 65 inch TV suits 160-180cm, and a 75 inch TV calls for 180cm or more.

The unit should always sit wider than the TV itself, not just equal to it. A wider base gives the screen visual support and keeps the room looking balanced rather than top-heavy.

A common mistake is buying a unit sized exactly for today's TV. If you expect to upgrade to a larger screen in a few years, leave some extra width in the unit now rather than replacing it later.

• 43 inch TV: roughly 90-120cm wide unit
• 55 inch TV: roughly 140-160cm wide unit
• 65 inch TV: roughly 160-180cm wide unit
• 75 inch TV: 180cm or more wide unit

Whether a TV feels too big depends on room size and seating distance, not just the wall space available. A large screen on a narrow wall in a small room can overwhelm the space even if it technically fits.

For a bedroom or compact room, a 32-43 inch TV usually works better than a larger one, since viewers sit closer. A family living room, where people sit further back, suits a 55-65 inch screen more comfortably.

Sit at your usual spot on the sofa or bed and picture the TV at the size you are considering. If it would fill more than your comfortable field of view, or you would need to turn your neck to see the edges, go a size smaller.

Before fixing a TV unit size, weigh the wall width available, your seating distance, how much storage you need, the TV size itself, and what the room is used for. These five factors together decide the right width, depth and height.

The checklist on this page lists these factors in order, so you can walk through them one by one before you finalise a size with your studio or contractor.

When you get a quotation, ask the vendor to confirm the unit's depth and height against your set-top box, console and cable routing, so everything fits and stays hidden once installed.

• Wall width available for the unit
• Distance from the unit to your main seating
• Storage needed for the console, set-top box and media
• TV screen size you own or plan to buy
• Purpose of the room: bedroom, living room or media room

The ideal viewing distance grows with screen size: around 1 metre works for a 50 inch 4K TV, while 65 to 85 inch screens suit roughly 2 to 2.6 metres of seating distance. Measure from your usual seat to the wall before deciding the unit's placement.

Unit height matters as much as width. Set the unit so the TV's centre lands close to eye level when you are seated, adjusting a little higher or lower depending on your sofa or bed height.

These ranges come from standard viewing-angle guidance tied to room length, not a single fixed number, so treat them as a starting point and adjust for your own room and seating.

TV resolution does affect how close you can sit to a larger screen. Formats such as Ultra HD, HDR TV, QLED TV, OLED and MiniLED pack in more detail than Full HD or 1080p, so you can sit nearer a big screen without seeing individual pixels.

Features like Dolby Vision and Dolby Atmos improve picture contrast and sound quality but do not change how big a screen you need for your room; they are separate from sizing decisions.

In practice, a higher-resolution TV may let you shift the viewing-distance guidance a little closer, but the width and height rules for the unit itself stay the same.