Poster Sizes for Printing: A3 to A0 and Beyond
Poster Sizes questions answered by the team that prints it every day. Platinum Digital Printing runs its own presses, embroidery machines and large-format printers in Randburg, Johannesburg — this guide shares what we tell our own clients, with no sales fog.
The Standard Ladder
A3 (297x420mm) for notice boards, A2 (420×594) for retail walls, A1 (594×841) for events, A0 (841×1189) for maximum indoor impact.
Beyond A0, large format takes over with custom dimensions to billboard scale.
Viewing Distance Rule
Readable headline height ≈ 25mm per 10m of viewing distance. A poster read across a hall needs A1 headlines, not A3 timidity.
Design for where it hangs, not the screen it was made on.
Paper and Finish
170gsm gloss suits short campaigns; 200gsm satin resists curl on walls; lamination earns its cost in high-touch or damp locations.
For exact numbers, send your brief to Platinum Digital Printing — quotes come back within the hour on business days, with a free artwork check and digital proof before anything prints.
Outdoor Escalation
Outdoors, paper surrenders to weather — step up to laminated stock for short bursts or PVC and board for anything serious.
Because production happens in-house at our Randburg centre, Gauteng clients can collect same-day on many products, and national orders courier within 1–3 working days.
Need Poster Sizes Handled?
Exact quote within the hour — free artwork check, digital proof, same-day options in Gauteng.
Poster Sizes — Frequently Asked Questions
What poster sizes can you print?
A3 through A0 standard, plus custom large-format sizes up to billboard scale.
What is the best poster size for events?
A1 for wall visibility across rooms; A0 where the poster IS the display.
Can posters be used outside?
Briefly if laminated — for real outdoor life choose PVC banners or rigid board.
Related Services
Further reading: posters.
