Out-of-home format · Belgium

20 m² billboard: 4,680 × 3,180 mm

20 m² billboard (Belgium): 4,680 × 3,180 mm, aspect ratio 1.46:1. With pixel size, bleed and a template as PDF, SVG, PNG or JPG.

Also called: 20m² · 468 x 318 · Belgian 15m²/20m²

Specifications

Outer size (W × H): 4,680 × 3,180 mm · 468 × 318 cm · 184.3 × 125.2 in
Visible size (W × H): 4,605 × 3,155 mm
Aspect ratio: 1.46:1 · 1.46:1 · Landscape
Sheets: 8
Bleed (media owner): not published
Safe area (media owner): not published
File format (media owner): File 3075 × 4513 mm (or at 1:10), CMYK, ≥ 300 dpi (ideally 450), PDF 1.4–1.6; 120–150 gsm blue-back recycled paper; 8 sheets with 2.5 cm overlap and a 4 cm white outer edge.
Medium: Paper / poster
Typical media owners: JCDecaux Belux, Clear Channel Belgium
Typical locations: Roadside/rail large-format billboards

Print area 468 × 318 cm, readable area 460.5 × 315.5 cm.

Recommended print file

1:10 · 300 dpi 5,528 × 3,756 px
1:1 · 50 dpi 9,213 × 6,260 px

Large formats are usually set up at 1:10 scale and 300 dpi. At final size that is 30 dpi, which is plenty when people look at the surface from 3 m or further away. The second line shows the alternative, 1:1 at 50 dpi.

Source

These figures come from the source linked below, as of 2026-09-24. If something has changed there since, please let us know.

www.jcdecaux-belux.com

Data quality: Media owner's spec

Download a template

A blank document in the right size, with bleed, safe area and crop marks. The PDF carries TrimBox and BleedBox for prepress, the SVG opens in Illustrator or Figma, and PNG or JPG work as placeholders. The file is built in your browser and nothing is uploaded.

Preview

Production rules that apply to almost every format

Keep type, logo and claim inside the safe area. Near the edge, the frame or the paste joint can cut them off.
No type smaller than 1/100 of the viewing distance. At 30 m that means a cap height of at least 30 cm.
Work in CMYK with the profile the media owner names, usually ISO Coated v2 or PSO Uncoated. Use RGB images and spot colours only when agreed.
Images for large formats need at least 30 dpi at final size. In a 1:10 file that is 300 dpi.
Embed your fonts or convert them to outlines. PDF/X-4 is the safe choice.
On backlit formats, take contrast and colour density down a notch, because the light from behind brightens everything.

See your creative on the surface before it goes into production

In the Creative Simulator you place your creative on a photo of a matching surface and see straight away how it looks on site. It costs nothing and you do not need an account.

Test your creative on the 20 m² billboard Check readability from 30 m

Common questions about the 20 m² billboard

What size is the 20 m² billboard?

The 20 m² billboard measures 4,680 × 3,180 mm (184.3 × 125.2 in). Orientation: Landscape. The visible size is 4,605 × 3,155 mm.

What is the aspect ratio of the 20 m² billboard?

The aspect ratio is 1.46:1. Artwork in the same ratio fills the surface without anything being cropped.

How large should the file for the 20 m² billboard be?

The usual set-up is a 1:10 file at 300 dpi, which gives 5,528 × 3,756 px. Published specs – File 3075 × 4513 mm (or at 1:10), CMYK, ≥ 300 dpi (ideally 450), PDF 1.4–1.6; 120–150 gsm blue-back recycled paper; 8 sheets with 2.5 cm overlap and a 4 cm white outer edge. Bleed: not published. Safe area: not published.

Related formats

All formats

All figures without guarantee. The media owner's current spec sheet always takes precedence. Brand and format names belong to their owners.