What size TV is right for my living room?

Match the size to your viewing distance, not the wall width. A 55-inch screen suits roughly 7 feet (2.1m) of viewing distance; 65-inch suits 8.5 feet; 75-inch suits 10 feet. SMPTE and THX recommendations both put the screen at filling about 30–40 degrees of your field of view. People rarely return TVs for being too large; they often regret going too small.

How high should a TV be mounted on the wall?

Centre of the screen at seated eye level — typically 42 inches (107 cm) from the floor for most sofa heights. Mounting higher forces an uncomfortable upward viewing angle. The instinct to mount above a fireplace is widespread and almost always too high; use a tilting mount if the fireplace is the only option.

Should I mount a TV above a fireplace?

Generally no — the resulting viewing angle is too steep and causes neck strain after 20 minutes. If the fireplace is the only viable wall, use a tilting mount and accept the compromise. A better solution if possible: mount on a perpendicular wall and reposition the sofa.

How do I hide TV cables on the wall?

Two practical options. An in-wall cable kit (recessed power outlet behind the TV plus a low-voltage box near the floor for HDMI) gives the cleanest result and requires a small drywall cut. A paintable plastic raceway runs cables down the surface of the wall — less elegant but works for rentals and brick walls where cutting is not an option.

Can I preview a TV on my wall before installing it?

Yes — two ways. Cut paper or cardboard to the exact TV dimensions and tape it to the wall at the planned height, then sit on the sofa for 15 minutes to see how it feels. Or use a photo-composition tool that mounts the exact TV onto a photo of your real wall at the right scale, which catches both visual proportion and how the TV reads in the room.

How far should a TV be from a sofa?

For 4K TVs, the recommended ratio is roughly 1.2 to 1.5 times the diagonal screen size. A 65-inch TV is 65 inches diagonal, so 78–98 inches of viewing distance (6.5–8 feet). Shorter distances are tolerable on higher-resolution TVs because pixels disappear; longer distances are tolerable but waste resolution.

How to visualize a TV on your wall before buying

To visualize how a TV will look on your wall before buying, you need three numbers: the wall width, the viewing distance (from the sofa to the wall), and the seated eye level. A 55-inch TV needs roughly seven feet of seating distance for comfortable viewing; a 65-inch needs nine feet. Mount the centre of the screen at seated eye level — typically 42 inches (107 cm) from the floor — not at the height you'd hang a painting. Below is how to get this right before you commit.

Step 1 — Pick the right TV size for your room

The most common mistake is going too small. TV size is measured diagonally, but viewing comfort is governed by distance. SMPTE and THX both recommend the screen fill roughly 30-40° of your field of view. In practical terms:

TV size	Ideal viewing distance	Minimum room
43"	5.5' / 1.7m	Small bedroom
55"	7' / 2.1m	Standard living room
65"	8.5' / 2.6m	Standard living room
75"	10' / 3.0m	Larger living room
85"	11.5' / 3.5m	Open living / theatre

Measure the distance from where you actually sit to where the TV will hang, then size up — not down — within the range. People rarely return TVs for being too large; they often regret buying too small.

Step 2 — Get the mounting height right

The centre of the TV screen should be at your seated eye level — not standing eye level. For most sofa heights, this puts the centre of the screen at roughly 42 inches (107 cm) from the floor. Higher than that and you'll get neck strain.

The “mount it above the fireplace” instinct is widespread and almost always wrong. A TV that high forces an upward viewing angle that gets uncomfortable after 20 minutes. If the fireplace is the only wall, use a tilting mount and accept the compromise.

Step 3 — Plan for cable management

A flush-mounted TV with cables dangling down the wall ruins the clean look. Two options:

In-wall cable kit: a recessed power outlet behind the TV plus a low-voltage box near the floor for HDMI/power. The cleanest result. Requires a small drywall cut.
Paintable cable cover: a plastic raceway that runs cables down the wall. Less elegant but doesn't require cutting drywall — useful for rentals.

Step 4 — Preview before drilling

Drilling four mount holes into a wall is the kind of decision that's cheap to second-guess and expensive to redo. Before you commit:

Cut a piece of cardboard or paper to the exact size of the TV and tape it to the wall at the planned height. Sit on the sofa for fifteen minutes and watch how it feels.
Or — preview the exact TV in a photo of your room. PlopIt mounts the TV onto your real wall at the right scale and shows you what the room actually looks like with it in place.
Confirm the wall can take the mount. Concrete walls take any TV. Drywall needs studs or heavy-duty toggle bolts; check the TV's weight against the rating.

Common TV-wall mistakes

Mounting too high. The biggest mistake by a wide margin. If you have to tilt your head up to watch, the mount is too high — drop it.
Buying for the wall, not the room. A 75-inch TV looks proportional on a 16-foot wall and dominates a 12-foot wall. Match the TV to the seating distance, not the wall width.
Ignoring window reflections. A TV opposite a large window will reflect glare during the day. Either choose a wall perpendicular to the window or accept curtains during peak sunlight.
Skipping the tilt mount. If the only good wall puts the TV slightly high, a tilting mount is a $30 fix that saves your neck.

Frequently asked questions

What size TV is right for my living room?
Match the size to your viewing distance, not the wall width. A 55-inch screen suits roughly 7 feet (2.1m) of viewing distance; 65-inch suits 8.5 feet; 75-inch suits 10 feet. SMPTE and THX recommendations both put the screen at filling about 30–40 degrees of your field of view. People rarely return TVs for being too large; they often regret going too small.
How high should a TV be mounted on the wall?
Centre of the screen at seated eye level — typically 42 inches (107 cm) from the floor for most sofa heights. Mounting higher forces an uncomfortable upward viewing angle. The instinct to mount above a fireplace is widespread and almost always too high; use a tilting mount if the fireplace is the only option.
Should I mount a TV above a fireplace?
Generally no — the resulting viewing angle is too steep and causes neck strain after 20 minutes. If the fireplace is the only viable wall, use a tilting mount and accept the compromise. A better solution if possible: mount on a perpendicular wall and reposition the sofa.
How do I hide TV cables on the wall?
Two practical options. An in-wall cable kit (recessed power outlet behind the TV plus a low-voltage box near the floor for HDMI) gives the cleanest result and requires a small drywall cut. A paintable plastic raceway runs cables down the surface of the wall — less elegant but works for rentals and brick walls where cutting is not an option.
Can I preview a TV on my wall before installing it?
Yes — two ways. Cut paper or cardboard to the exact TV dimensions and tape it to the wall at the planned height, then sit on the sofa for 15 minutes to see how it feels. Or use a photo-composition tool that mounts the exact TV onto a photo of your real wall at the right scale, which catches both visual proportion and how the TV reads in the room.
How far should a TV be from a sofa?
For 4K TVs, the recommended ratio is roughly 1.2 to 1.5 times the diagonal screen size. A 65-inch TV is 65 inches diagonal, so 78–98 inches of viewing distance (6.5–8 feet). Shorter distances are tolerable on higher-resolution TVs because pixels disappear; longer distances are tolerable but waste resolution.