Out-of-home format · Germany

City Light Board: 3,560 × 2,520 mm

City Light Board (Germany): 3,560 × 2,520 mm, aspect ratio 17:12. With pixel size, bleed and a template as PDF, SVG, PNG or JPG.

Also called: CLB · 18/1 hinterleuchtet · Megalight

Specifications

Outer size (W × H): 3,560 × 2,520 mm · 356 × 252 cm · 140.2 × 99.2 in
Visible size (W × H): 3,400 × 2,400 mm
Aspect ratio: 17:12 · 1.42:1 · roughly √2:1 (DIN) · Landscape
Sheets: 18 · 6 × 3 DIN A1 panels
Bleed (media owner): 15 mm
Safe area (media owner): not published
File format (media owner): WallDecaux: 170 g/m² matt white coated art paper for backlighting, laminated on the back (12 µm); offset in 4 parts or digital in 1 or 2 parts; for 4 parts, 15–20 mm trim allowance on all sheet edges and ≥ 3 mm artwork overlap at the joins; print data as specified by the printer.
Medium: Backlit
Typical media owners: WallDecaux
Typical locations: Main roads, squares; 9 m²; mostly with scrolling mechanism

WallDecaux asks for a 15–20 mm trim allowance for 4-part offset printing. According to FAW, the visible size ranges from 340 × 240 cm to 356 × 252 cm.

Recommended print file

1:10 · 300 dpi 4,205 × 2,976 px
1:1 · 50 dpi 7,008 × 4,961 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.

ingo.walldecaux.de

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 City Light Board Check readability from 30 m

Common questions about the City Light Board

What size is the City Light Board?

The City Light Board measures 3,560 × 2,520 mm (140.2 × 99.2 in). Orientation: Landscape. The visible size is 3,400 × 2,400 mm.

What is the aspect ratio of the City Light Board?

The aspect ratio is 17:12, roughly √2:1 (DIN). Artwork in the same ratio fills the surface without anything being cropped.

How large should the file for the City Light Board be?

The usual set-up is a 1:10 file at 300 dpi, which gives 4,205 × 2,976 px. Published specs – WallDecaux: 170 g/m² matt white coated art paper for backlighting, laminated on the back (12 µm); offset in 4 parts or digital in 1 or 2 parts; for 4 parts, 15–20 mm trim allowance on all sheet edges and ≥ 3 mm artwork overlap at the joins; print data as specified by the printer. Bleed: 15 mm. 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.