How High to Hang a Mirror Above a Sofa: A Measured Layout Guide

Hang a mirror above a sofa so the bottom of the frame sits 15 to 25cm above the top of the back cushions, and the top of the frame is no higher than 200cm under a standard 2.4m New Zealand ceiling. For most sofas that puts the centre at about 150cm, which is roughly standing eye line, and it means the mirror cannot be taller than 200cm minus your sofa's back height minus 15. We ray traced what each of our wall mirrors reflects at every height, from the doorway, from an armchair opposite and standing in front of it, and measured the gaps in our own listing photos. The numbers are below, with a tape measure method to lay it out before you drill.

This guide is about one thing: the height. For which wall the mirror should go on, our living room placement guide covers the five spots that work. For how wide it should be against the sofa, the statement mirror guide has the two thirds rule. For weight, cleats and what plasterboard will hold, see our large wall mirror guide.

Why "eye level" and "just above the sofa" fight each other

Most advice gives you two rules at once: centre the mirror at eye level, and keep it close to the sofa so it does not float. Both are right, and in a lot of New Zealand lounges you cannot have both, because a third number is doing the deciding: the ceiling. Our own guides have quoted anything from 10cm to 40cm for the gap over the years, and the reason they disagree is that none of them held the ceiling fixed.

Here is the whole sum. Measure the height of the back cushions off the floor (call it S). Add the gap you want. Add the height of the mirror (M, from the product listing). That total is where the top of the frame lands, and under a 2.4m ceiling the top has to stop at about 200cm. So S plus gap plus M must be 200 or less. With a standard sofa at 85cm and a 100cm mirror, the gap can only be 15cm. With a low sofa at 75cm, the same mirror can have 25cm. With a high back at 95cm, a 100cm mirror does not fit under the line at all, and you need a shorter mirror or a taller room.

Where the 200cm line comes from: what the mirror reflects

A mirror on the sofa wall is mostly looked at from across the room, so that is where we put the viewer in the ray trace: standing at the far wall, eyes at 160cm. For a mirror hung on the wall, the glass shows you whatever sits on the line from your eye, through the glass, and back into the room. The maths is simple: from the far wall, a point on the glass at height h reflects the far wall at twice h minus your eye height.

Put the top of the glass at 200cm and the reflection reaches the far wall at 240cm, the ceiling line, and no higher. Put it at 220cm and the top strip of the glass is showing ceiling, which is the look everyone recognises as "hung too high" without being able to say why. The line moves with eye height, but not by much: 195cm for someone with eyes at 150cm, 205cm at 170cm. Under a 2.7m ceiling, common in older villas, the line rises to 215cm.

Two more results from the same trace are worth knowing. Standing 1.5m in front of the sofa, a mirror hung from 100 to 200cm shows you from the top of your head down to about 40cm above the floor, so you can check an outfit in it. And from an armchair across the room, with your eyes at about 115cm, everything above 172cm on the glass shows ceiling, which is roughly the top fifth of a correctly hung mirror. That is why a mirror above a sofa should be judged standing up: sitting down, every mirror at eye line looks a little high.

The layout for our three wall mirrors, by sofa back height

Three of our mirrors hang above a sofa: the Aure round at 100cm, the Le Vue window mirror at 120 x 100cm, and the Aldren X at 200 x 100cm, which is made to hang on its side as well as upright, so it becomes a 100cm tall, 2m wide landscape mirror. Measure your back cushions, find the row, and read off where the frame goes.

Ceiling 2.4m, viewer standing at the far wall with eyes at 160cm. Heights are to the outside of the frame; the glass starts about 1 to 2cm inside it. Measure your own back cushions: the figures are typical New Zealand sofas, not a standard.

Read the pattern rather than the rows. A 100cm tall mirror, round or landscape, fits a sofa with a back up to about 85cm with the top of the frame on the 200cm line. On a high back sofa the same mirror goes 10cm over the line, which is a sliver of ceiling you may happily live with, but it is the honest limit. The Le Vue at 120cm tall only clears the line above a low sofa and only just; above a standard sofa it reads as too high, and that matches what our large wall mirror guide already says about it: it is a console and sideboard mirror first, and a sofa mirror in a villa with a 2.7m stud.

The tallest mirror your sofa allows

Turn the sum around and it tells you what to buy. The tallest mirror that fits is 200cm minus the back cushion height minus a 15cm gap.

Round mirrors use their diameter as the height. For how wide the mirror should be against the sofa, use the statement guide's two thirds rule; the width does not change any of the heights here.

Mark it out before you drill

1. Measure from the floor to the top of the back cushions, in the middle of the sofa. Press loose cushions down the way they sit when someone is on them. That is S.
2. Take the mirror height M from the listing: 100 for the Aure, 100 for the Aldren X on its side, 120 for the Le Vue.
3. Add S, a 15cm gap and M. If the total is 200 or less, you can open the gap up to 25cm as long as the top stays at 200. If it is over 200, the mirror is too tall for this sofa under this ceiling; pick a shorter one or accept the sliver of ceiling in the table above.
4. Run a strip of masking tape along the wall at the height of the bottom of the frame, centred on the sofa, and a second strip at the top. Stand in the doorway and look at the tape: it should sit between the cushions and the ceiling with the bigger share of bare wall above the top strip, not below the bottom one.
5. Measure from the top of the frame down to the hanging hook or wire on the back of the mirror, and subtract that from the top line to find where the fixing goes. Our mirrors list their weight on the product page; the Aure is 12kg, the Le Vue 11kg and the Aldren X 28kg, which is a stud or a cleat job, not plasterboard anchors. Our plasterboard guide and concrete and brick guide cover the fixings, and the no drill guide covers rentals.
6. Hang it, then do the two checks: stand at the far wall and look for ceiling in the glass (none means the height is right), and stand 1.5m in front of the sofa and check you can see your own head with room above it.

One practical note on the gap. If people lean their heads back over the cushions on a low sofa that sits hard against the wall, their heads are 25 to 50cm above the cushion line, right where a 15cm gap puts the bottom of the frame. In that room, either pull the sofa 10cm off the wall or take the gap to 25cm. A heavier frame hung on a cleat does not move when it is brushed, but glass is still glass.

What our own photos show

We measured our own listing photos as a sanity check. The Le Vue above a sofa sits about 17cm above the cushions in one photo and closer to 5 to 10cm in another, and the Aldren X hung on its side above a sideboard sits about 31cm above it. All three photos crop the ceiling out, so none of them can show you the top of frame check, which is the one most people miss. It is also why we would hang the second Le Vue a little higher than it is photographed.

The mirrors in this guide

If you are weighing a round against a rectangle for the lounge, our round mirror guide sizes a circle to the wall feature beneath it, and our round versus rectangular guide settles the shape question.

Frequently asked questions