What size poster should you choose for your wall? A practical guide
A well-chosen poster transforms an ordinary wall into a true work of art. But how do you choose between A4 and 70×100 cm? This guide gives you all the information you need to select the ideal poster size for your room, furniture, and style .
The golden rule: proportions and visual balance
Before choosing a format, keep two fundamental principles in mind:
- A poster should occupy 60 to 75% of the width of the furniture below it (sofa, bed, console).
- The ideal hanging height is 145 to 150 cm from the floor to the center of the artwork — approximately eye level.
These two rules are enough to avoid the most common mistakes and guarantee a harmonious result, whatever the room.
Poster above a sofa
The living room is where a poster has the most impact. Placed above the sofa, it structures the space and asserts your decorative identity.
Recommended sizes for the living room
- 50×70 cm — ideal for a 2-seater sofa
- 60×90 cm — versatile, very popular
- 70×100 cm — large format for a 3-seater sofa or more
These formats create an elegant focal point , whether it's a vintage jazz poster, a Bauhaus composition, or an editorial floral motif.
👉 Discover our posters for the show
Posters above the bed
In a bedroom, the wall above the bed is the most visible surface. Two approaches work depending on the desired effect.
A large central poster
An A1 (59.4×84.1 cm) or 70×100 cm format placed in the center creates a minimalist and calming decoration. It's the ideal approach to showcasing a striking piece—a Matisse print, a botanical watercolor, or a jazz club poster.
Two or three posters lined up
Three A3 (29.7×42 cm) or 40×60 cm posters placed side by side create a modern and balanced triptych. This composition is particularly effective with works from the same graphic style or color palette.
👉 Explore our posters for the bedroom
Poster for a small wall or hallway
Small spaces deserve just as much attention as large rooms. A well-dressed hallway immediately sets the tone for your interior.
Recommended sizes for small spaces
- A4 (21×29.7 cm) — perfect for solo or series
- A3 (29.7×42 cm) — ideal for a compact wall gallery
- 40×60 cm — slightly larger, perfect for an entryway
Combine several posters of the same style for a coherent and editorial look, without cluttering the space.
Create a gallery wall
The gallery wall is one of the most enduring decorating trends. It allows you to combine several formats and styles for a vibrant and personal wall.
How to create a successful gallery wall
- Choose an anchor format : a large poster (60×90 cm or 70×100 cm) as a centerpiece.
- Surround it with smaller formats : A3 or 40×60 cm in satellite format.
- Maintain graphic consistency : same palette, same era or same style (Bauhaus, vintage, botanical…).
- Space them evenly : 5 to 8 cm between each frame for an airy and neat look.
👉 Browse all our collections to create your gallery
Summary table: what size for which room?
| Piece | Recommended format | Use |
|---|---|---|
| Living room (2-seater sofa) | 50×70 cm | Single poster centered |
| Living room (3-seater sofa) | 70×100 cm | Large format structure |
| Bedroom (above the bed) | A1 or 60×90 cm | Minimalist and elegant |
| Room (triptych) | 3 × A3 or 40×60 cm | Modern Composition |
| Hallway / Entrance | A4 or A3 | Solo or compact gallery |
| Office / home office | A2 or 50×70 cm | Inspiration and character |
Our formats are available at Bleue Vague Flow
All our posters are printed on FSC-certified paper, using responsible inks, for a lasting premium finish. We offer eight sizes to suit all spaces:
- A4 — 21×29.7 cm
- A3 — 29.7×42 cm
- A2 — 42×59.4 cm
- A1 — 59.4×84.1 cm
- 40×60 cm
- 50×70 cm
- 60×90 cm
- 70×100 cm
Conclusion: dare to go large format
The current trend is clearly towards large formats . A well-chosen A1 or 70x100 cm poster has far more impact than a collection of small, incoherent posters. Trust your instincts, respect proportions, and let the artwork speak for itself.
