Before choosing or commissioning a painting, it is therefore worth looking not only at the subject but also at the wall and its surroundings.
Start with the wall, not only the painting
One of the most common challenges when choosing a painting’s size arises from imagining the work in isolation rather than as part of the room.
Begin by looking at the wall where it will be displayed.
Important questions include:
- How wide is the available wall space?
- How high is the ceiling?
- Will there be a sofa, bed, chest of drawers or table beneath the painting?
- Are there windows, doors or other pictures nearby?
- From what distance will the painting usually be viewed?
Once these questions have been answered, it is easier to decide which size will work.
A painting that is too small can disappear on a large wall
A small work can have a strong impact when viewed up close, but its effect may be diminished on a large, empty wall.
This is particularly important when the painting hangs above a large piece of furniture.
In that case, the painting and the furniture should be considered as a whole.
There is no universal percentage or sizing formula that works in every room. The proportions of the furniture, the ceiling height, the format of the work and the rest of the interior all affect the result.
It is therefore best to assess the size visually rather than relying on numbers alone.
Mark the proposed size on the wall
One of the simplest ways to assess the size of a painting is to mark its outer dimensions on the wall with painter’s tape.
For example, if you are considering a work measuring 80 × 120 cm, you can temporarily mark a rectangle of the same size on the wall.
Then view it:
- from directly in front;
- from the entrance to the room;
- from your usual seat;
- from an adjoining room, if the painting will be visible from there.
This test often gives a much better impression than viewing the same dimensions on a computer screen.
Horizontal, vertical or square?
The choice of format affects the visual direction of the room.
Horizontal format
A wider painting often works well:
- above a sofa;
- above a bed;
- above a long chest of drawers;
- on a wider area of free wall space.
Vertical format
A vertical painting may work well:
- on a narrower wall;
- between two doors or windows;
- in a corner;
- in a room where you want to emphasise height.
Square format
A square work is geometrically calmer and can work well either as a single focal point or in balance with other elements.
These are not strict interior design rules. The particular subject may significantly influence the choice of format.
Size also affects the subject
A highly detailed composition may need more space than a simple, minimalist subject.
When using a photo or another reference image, its proportions must also be taken into account.
If the reference image is very wide but the desired painting is narrow and vertical, the composition will inevitably need to be changed or cropped.
For a commissioned painting, the format should therefore be considered before work begins whenever possible.
How to choose the size of a commissioned painting
The painting and the room do not need identical colours
A common assumption is that a painting must exactly repeat the colours of the sofa, curtains or rug.
This is not necessary.
What matters more is how the colours relate to one another.
A painting can:
- continue the room’s existing calm colour palette;
- introduce a new accent colour;
- create a deliberate contrast;
- bring together several colours already present in the room.
If a painting is commissioned for a particular interior, a photo of the room taken in daylight helps give the artist context.
Light changes how a painting is perceived
The same painting can look different under different lighting.
Natural daylight, warm indoor lighting and cooler LED light all affect how colours are perceived.
It is therefore worth considering:
- whether the wall receives direct sunlight;
- how light or dark the room is;
- what lighting is used in the evening;
- whether a strong spotlight will fall on the painting.
For specific questions about preserving and lighting the work, follow the guidance for the particular material and that of the artist, as different techniques and materials may require different treatment.
When there are several works on the wall
A painting on canvas does not always have to hang by itself.
If a wall holds several works of art or photographs, the dimensions of the group as a whole become important.
In this case, plan the outer boundary of the entire arrangement first and only then decide on the positions of the individual works.
The spacing between the works also matters.
Highly irregular gaps can make an arrangement feel unsettled, while placing the works too close together can create visual overload.
View the dimensions in the room before making a final decision
On a screen, a painting that is 100 cm wide may look very large. On the wall of a spacious living room, the same work may appear quite moderate in size.
It is therefore worth using at least one visual size test:
- painter’s tape on the wall;
- paper or cardboard of the same size;
- a simple digital photo mock-up.
The aim is not to create a simulation accurate to the millimetre, but to understand the proportion of the work in relation to the room.
Checklist for commissioning a painting on canvas
Before confirming the size, check:
- Which wall will the painting be displayed on?
- How much free space is actually available?
- Will there be furniture beneath the painting?
- Would a horizontal or vertical format work better?
- From what distance will the painting mainly be viewed?
- Does the subject suit the chosen proportions?
- Is it possible to send a photo of the room?
- Have the proposed dimensions been physically tested on the wall?
The aim when choosing the size is not to find a mathematically “correct” answer. It is to find proportions that work both for the piece itself and for the particular room.