Out-of-home format · United Kingdom

12-sheet poster: 3,048 × 1,524 mm

12-sheet poster (United Kingdom): 3,048 × 1,524 mm, aspect ratio 2.05:1. With pixel size, bleed and a template as PDF, SVG, PNG or JPG.

Also called: 12 sheet · LU 12 sheet

Specifications

Outer size (W × H): 3,048 × 1,524 mm · 304.8 × 152.4 cm · 120 × 60 in
Visible size (W × H): 2,977 × 1,453 mm
Aspect ratio: 2.05:1 · 2.05:1 · Landscape
Sheets: 12
Bleed (media owner): 3 mm
Safe area (media owner): not published
File format (media owner): High-resolution CMYK PDF (v1.6 or later, FOGRA39L), min. 300 dpi, fonts outlined, 3 mm bleed, max. 25 MB at quarter size (762 × 381 mm).
Medium: Paper / poster
Typical media owners: Global
Typical locations: London Underground / rail cross-track and platform, some roadside

Sizes from Global's London Underground spec: 3,048 × 1,524 mm overall, display area 2,977 × 1,453 mm.

Recommended print file

1:10 · 300 dpi 3,600 × 1,800 px
1:1 · 50 dpi 6,000 × 3,000 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.

global.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 12-sheet poster Check readability from 30 m

Common questions about the 12-sheet poster

What size is the 12-sheet poster?

The 12-sheet poster measures 3,048 × 1,524 mm (120 × 60 in). Orientation: Landscape. The visible size is 2,977 × 1,453 mm.

What is the aspect ratio of the 12-sheet poster?

The aspect ratio is 2.05:1. Artwork in the same ratio fills the surface without anything being cropped.

How large should the file for the 12-sheet poster be?

The usual set-up is a 1:10 file at 300 dpi, which gives 3,600 × 1,800 px. Published specs – High-resolution CMYK PDF (v1.6 or later, FOGRA39L), min. 300 dpi, fonts outlined, 3 mm bleed, max. 25 MB at quarter size (762 × 381 mm). Bleed: 3 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.