Almost every wall that feels unfinished has the same problem, and it is rarely the artwork itself. It is the size. A piece that is too small floats in the middle of a wall like an afterthought, and no frame, no lighting and no rearranging of the furniture will fix it. Choosing the right artwork size is the single decision that does most of the work in a room, and it can be reasoned through in about ten minutes.

What follows is a practical guide to artwork dimensions: the proportions that hold across most interiors, the numbers that work above a sofa, a sideboard, a bed and a dining table, and how the standard formats actually behave once they are on a wall.

Start with the wall, not with the artwork

The most common way to arrive at the wrong size is to start from the piece you like and hope it fits. Start from the surface instead. Measure the width of the wall, or of the furniture the work will hang above, and let that number set the range.

The proportion that holds almost everywhere: an artwork should occupy roughly 60 to 75 per cent of the width of the furniture below it, and on a free wall roughly half to two thirds of the wall width. Below that, the piece reads as decoration. Above it, the wall starts to feel crowded.

A 200 cm sofa therefore wants something in the region of 120 to 150 cm of visual width — one large piece, or two works hung side by side with the gap counted in. A 160 cm sideboard wants 95 to 120 cm. A 90 cm stretch of hallway wall wants a single vertical piece of 50 to 60 cm in width, not three small ones.

Sizes that work above furniture

Above a sofa

This is the wall where size mistakes are most visible, because the sofa gives the eye an immediate ruler. Leave 15 to 25 cm between the top of the backrest and the bottom edge of the work — closer than that and the two objects merge, further apart and the piece drifts up the wall.

For a standard three-seater, a 75 x 100 cm work centred above it is the reliable answer. Two works of 50 x 70 cm hung with a 5 to 8 cm gap cover a similar span and give the wall a rhythm a single piece does not have.

Above a sideboard or console

Sideboards are lower and usually carry objects — books, a lamp, a bowl. The artwork has to survive that competition, which argues for a single strong piece rather than several. A vertical format works particularly well here: it lifts the eye above the clutter line. A 57 x 80 cm or 75 x 100 cm piece sits comfortably above most sideboards.

Above a bed

Centre the work on the bed, never on the wall, and keep it inside the width of the headboard. A double bed of 160 cm takes a work of roughly 100 to 120 cm. Hang it higher than you would elsewhere — 20 to 30 cm above the headboard — so that sitting up in bed does not put your head against the frame.

In a dining room

Dining rooms are seen from a seated position more often than any other room in the house, and the wall is usually long. This is where wide formats earn their place: a 60 x 120 cm or 80 x 160 cm horizontal work reads as architecture rather than decoration, and it holds the room when the table is empty.

Hanging height and viewing distance

The museum convention is to place the centre of the work at 145 to 152 cm above the floor, which corresponds to average standing eye level. It is a good default for hallways, staircases and any wall you pass rather than sit at.

Lower it in rooms where people sit. In a living room, dropping the centre to around 140 cm brings the work into the seated field of view. The one rule that overrides the numbers: if the piece hangs above furniture, the relationship to that furniture matters more than the absolute height.

Viewing distance changes the maths too. A work seen from four metres across an open-plan room needs more physical size to register than the same work in a 12 m² bedroom seen from two metres away. As a rough guide, the diagonal of the artwork should be somewhere near half the viewing distance.

One large piece or several small ones

Multiple small works look like the safer choice and rarely are. Each additional frame adds an edge, and every edge is a place where the eye stops. Six small pieces on one wall produce twenty-four edges and no focus.

A single large work does the opposite: it gives the room one place to rest and lets the empty wall around it read as deliberate space rather than as leftover. Small rooms benefit from this more than large ones, which is counter-intuitive and true — an oversized piece in a compact room reads as confidence, while a small piece in the same room reads as hesitation.

Two works are the exception worth making, and they are their own discipline. We have written about pairing in the guide to diptych hanging.

How the formats behave in a room

Numbers on a size chart do not tell you much until you know what they do on a wall. The formats in the Pills series are a useful reference because they cover the range most interiors need.

• 50 x 70 cm — the format for a defined, smaller surface: a hallway, a stretch of wall between two doors, a bedroom wall beside a window, or one half of a pair.
• 57 x 80 cm — the middle format. It carries a sideboard or a desk wall on its own and works at a viewing distance of two to three metres.
• 75 x 100 cm — the format that turns a wall into the focal point of a room. Above a three-seater sofa or on a free wall in a living room, this is usually the right answer.
• 50 x 100 and 60 x 120 cm — vertical formats that add height. In rooms with low ceilings they do more for the proportions of the space than any horizontal piece can.
• 80 x 160 cm — architectural scale. It needs a wall of its own and a viewing distance of at least three metres, and in return it changes the room rather than decorating it.

Every format is available in its own right, so the size is a decision rather than a matter of availability — which also means it is worth spending ten minutes on.

Illuminated works are sized differently

A work that carries its own light occupies more visual space than its measurements suggest. The glow extends past the edge of the frame onto the wall, so a Lightbox at 60 x 84 cm holds a wall that would otherwise need a larger unlit piece. The 84 x 120 cm format goes further again: turned up, the wall opens like a portal; turned down, the piece settles into a painting that happens to glow.

Two practical constraints come with it. An illuminated work needs a socket within reach, and it should not compete with a bright window directly opposite. Beyond that, the same proportions apply — 60 to 75 per cent of the furniture width below.

Test the size before you decide

Two minutes of masking tape settle most doubts. Mark the outline of the format on the wall at the height you intend to hang it, then leave it there for a day and walk past it. Wrong sizes announce themselves quickly.

Newspaper or wrapping paper cut to the exact format works even better, because it gives the eye a filled surface rather than an outline. Photograph the wall with the paper in place and look at the photograph — a camera flattens the room and shows proportions more honestly than standing in it does.

If the decision still feels close, send a photograph of the wall with its dimensions. A quick visualisation of the piece at two different formats in your own room is usually enough to end the discussion — get in touch here.

Frequently asked questions

What size artwork should hang above a sofa?

Roughly 60 to 75 per cent of the width of the sofa. For a 200 cm three-seater that means about 120 to 150 cm of visual width — a single 75 x 100 cm piece centred above it, or two works of 50 x 70 cm hung side by side. Leave 15 to 25 cm between the backrest and the lower edge.

How high should artwork be hung?

Place the centre of the work at 145 to 152 cm above the floor in rooms you walk through, and around 140 cm in rooms where people sit. When the piece hangs above furniture, the distance to that furniture takes priority over the absolute height.

Can a large artwork work in a small room?

Yes, and it usually works better than several small ones. A single large piece gives a compact room one clear focal point and makes the surrounding wall read as intentional space. Several small pieces produce visual noise in exactly the rooms that can least afford it.

Should artwork be centred on the wall or on the furniture?

On the furniture. The eye reads the artwork and the piece of furniture below it as one composition, so an artwork centred on the wall but offset from the sofa will look misaligned even when it is technically correct.

What is the right gap between two artworks hung side by side?

Between 5 and 10 cm for works of the same size. Any wider and the pair separates into two unrelated objects; any narrower and the gap looks like a mistake rather than a decision.

Getting it right the first time

Choosing an artwork size is a question of proportion, not of taste: measure the wall, take 60 to 75 per cent of the furniture width, check the viewing distance, and tape the format up before you commit. Every work is made by hand in Berlin, in the format you choose — so the size is worth deciding deliberately, once.