Updated September 16, 2026 — by César, editor at AestheticPoster
The L format (42 × 60 cm) is the best default choice: it decorates a bedroom, office, or hallway. Choose the M (30 × 42 cm) for a gallery wall or small space, the XL (60 × 84 cm) for a focal point above a sofa or bed, viewed from 2 meters away.
Key takeaways
- M 30 × 42 cm (≈ A3): entryway, bathroom, office, gallery wall — viewed from less than 1 m.
- L 42 × 60 cm (≈ A2): bedroom, hallway, above a desk — viewed from 1–1.5 m.
- XL 60 × 84 cm (≈ A1): living room, above the bed or sofa — viewed from 1.5–2 m or more.
The rule: half to two-thirds of the furniture's width
A poster hung above furniture should cover between half and two-thirds of its width: below that it looks floating, above that it overwhelms. Measure the furniture, multiply by 0.5 and 0.66: that's the width you need to reach, alone or combined (5 to 8 cm between posters). One XL equals two L or four M. All three are printed on 250 g/m² matte paper with PVC coating, at €19.99 / €29.99 / €49.99, with adhesive strips included.
Which format for which furniture?
| Situation | Furniture width | Recommended format | Alternative |
|---|---|---|---|
| 2–3 seater sofa | 150–240 cm | 2 XL side by side (≈ 130 cm) | 3 L (≈ 140 cm) |
| 140 cm bed | 140 cm | 2 L (≈ 90 cm) | 1 XL centered (60 cm) |
| 160 cm bed | 160 cm | 2 L or 3 M (≈ 100 cm) | 2 XL if the wall is over 3 m |
| Desk | 120–140 cm | 1 L centered | 2 M |
| Hallway | 1–1.5 m viewing distance | M or L aligned | — |
| Gallery wall | 2 m of wall | 6 M in 2 rows of 3 | 1 L + 4 M |
Situation by situation
Sofa. A sofa 180–220 cm wide needs 90 to 145 cm of display: a single XL (60 cm) is not enough, choose two XL or three L. An XL alone works above a sofa under 130 cm. Full plan in living room wall decoration.
140 or 160 cm bed. Two L side by side (90 cm) cover a 140 cm bed; a 160 cm bed accepts two L or three M aligned. Bottom edge 20–30 cm above the headboard. For a theme, see gaming bedroom decor, manga posters, or video game posters.
Desk. Seated, you look at the wall from less than 1 m away: one L centered above a 120–140 cm desk, or two M on a wider surface. Recommended style: brutalist poster for an office.
Hallway. Viewing distance under 1.5 m: M or L in series, never XL.
Gallery wall. M is the building block: 5 to 9 pieces spaced 5 cm apart, one L in the center as a focal point — example in vintage travel poster: composing a gallery wall.
Viewing distance determines the format
Comfortable viewing distance is 1.5 to 2 times the image diagonal: M (52 cm diagonal) → 0.8 to 1 m; L (73 cm) → 1.1 to 1.5 m; XL (103 cm) → 1.5 to 2 m. Measure from where you'll be looking at the wall: the distance tells you the format. In doubt, tape a kraft paper template at the exact dimensions for 24 hours. For height (center at 145–150 cm from the floor), see at what height to hang a poster.
Frame and mounting by format
The optional frame (black, white, light wood, dark wood) is adjusted for the format: +€50 for M, +€70 for L, +€100 for XL. At IKEA (photo sizes), an M doesn't fit a 30 × 40 frame (2 cm too short): 40 × 50 with a mat; an L fits a 50 × 70, an XL fits a 61 × 91 — details in IKEA frames compatible and how to frame a poster. Without a frame, the included adhesive strips hold all three formats without drilling (how to hang a poster). Let a rolled poster flatten for 24–48 hours before framing; in direct sunlight, UV-protective glass is required (protecting a poster from sun fading).
FAQ
Is an XL too large for a bedroom?
In a bedroom under 10 m², often yes: the XL requires 1.5 to 2 m viewing distance. Prefer an L or three M aligned, unless the wall opposite the bed is over 3 m wide.
What size poster should I choose as a gift?
M: it fits on any wall and will fit in a 40 × 50 frame. L only if you know the destination wall. Collections by interest in our gift guide by passion.
Can you mix multiple formats on the same wall?
Yes, with a common axis (same centerline or same bottom edge) and consistent 5 cm spacing. An L in the center surrounded by M works; an XL and M on the same line will unbalance the wall.
Browse the nature posters collection, available in all three formats, or read our complete buying guide.
César, editor at AestheticPoster — I've been testing wall compositions since 2022, with kraft templates in hand.
