Size Guide

Poster Size Guide

At Ari Poster, we believe the right poster size can make as much difference as the design itself. Whether you’re updating your wall décor, preparing marketing materials, or creating a gift, choosing the correct dimensions helps ensure your artwork looks its best.


🎨 Common Poster Sizes

Here are some of the standard sizes that Ari Poster recommends for posters and wall-art:

- 8.5″ × 11″ (≈ A4) — Ideal for small spaces like bulletin boards, shelf walls, or indoor use. Ari Poster

- 12″ × 18″ — Great balance for personal art, home study décor, or medium-scale promotions. Ari Poster

- 18″ × 24″ — Works well in spaces where viewers will be a bit further away; popular for artistic displays or event posters. Ari Poster

- 24″ × 36″ (≈ A1 size) — A large-format size that commands attention; recommended for public zones, exhibition walls or statement art. Ari Poster

- Other large formats — Sizes such as 40″ × 60″ (≈ B0) or similar are provided for high-visibility uses like large rooms, exhibitions or outdoor-adjacent spaces. Ari Poster


🧠 How to Pick the Right Size

When selecting a size, consider these factors (based on Ari Poster guidance):

1/ Wall space & layout: Measure the area where the poster will go. Will it fill the space? Leave too much empty wall around it? Ensure it fits in harmony with furniture, shelves, lighting, etc. Ari Poster

2/ Viewing distance: If people will view from far away (like in a living room or hallway), choose a larger size so details can still be seen. Conversely, for close-up spaces (bedrooms, offices) smaller sizes suffice. Ari Poster

3/ Aspect ratio & frame availability: Ari Poster recommends some formats (e.g., 30×40 cm / 12×16″; 50×70 cm / 20×28″; 70×100 cm / 28×40″) because they maintain consistent aspect ratios and matching frames are easier to find. Ari Poster.

4/ Matching your décor: The size should visually balance with surrounding décor — too small may look lost, too large may overwhelm. Use size to complement rather than dominate. Ari Poster

5/ Bleed & file setup (if you’re producing the poster): For print-on-demand, Ari Poster reminds that your design file should include the proper bleed area so final trimmed size is correct (for example: a 300×400 mm print needs a PDF file of 308×408 mm including bleed).


✅ Quick Summary Table

Size Approximate Use
8.5″ × 11″ (A4) Small spaces: shelves, desks, home office walls.
12″ × 18″ Medium scale: hallway walls, personal décor, smaller promotional posters.
18″ × 24″ Larger home or office walls, visible from further away.
24″ × 36″ (A1 approx) Statement pieces, larger rooms, public display.
Bigger formats (e.g., 40″+ / 60″+) High-impact spaces: feature walls, exhibition areas, outdoor adjacencies.

🔍 Final Thoughts

Choosing the right size for your poster is just as important as choosing the right design or image. With Ari Poster guidance, you’re better equipped to select a format that fits your space, your audience’s viewing distance, and your framing/finishing possibilities.
If you’re unsure, it’s often safer to go slightly larger (if space and budget allow) rather than too small — you’ll get more presence and easier visibility.