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A3 Posters
A3 Posters

A3 Posters

Description

Order A3 posters online from Propa Printing. A3 posters are twice the size of A4 – the go-to size for noticeboards, shop windows and gig posters on a budget. Choose your paper and quantity, upload your artwork and see your price instantly – with free UK delivery.

What you can choose

  • Size: A3 – 297 × 420 mm (11.7 × 16.5 in)
  • Paper: Gloss (130–350gsm), Silk (130–350gsm), Bond (120gsm) and Pulp (380 micron)
  • Printing: full colour, printed on one or both sides
  • Quantity: any amount from 1 copy, or pick 250, 500, 1,000 or 2,500
  • Delivery: Saver, Standard or Express – free to UK addresses

Great for

Gig and club posters, noticeboards, shop windows, menus, art prints and in-store promotions.

Every file is checked by a real person at Propa Printing before it goes to print. If anything looks off – low resolution, missing bleed or text too close to the edge – we'll get in touch first. Bigger job or tight deadline? Get in touch for a quote.

Frequently asked questions

What size is an A3 poster?
A3 is 297 × 420 mm (29.7 × 42 cm, 11.7 × 16.5 in).

Which poster paper should I choose?
170gsm gloss gives vivid colour and is the most popular poster paper. Silk has less glare under bright lights. 120gsm bond is uncoated with a matt finish – good for paste-ups and budget runs. Heavier weights (250–350gsm) feel like thin card and suit framing.

Can I order a small quantity?
Yes. Type any quantity into the custom box – even a single copy – and the price updates instantly. A few paper and finish combinations have a higher minimum; the configurator will tell you if so.

How long does delivery take?
Choose Saver, Standard or Express when you order. Your estimated delivery date is shown next to the price before you check out, and delivery to UK addresses is free.

What file should I upload?
A print-ready PDF is best, but JPG, PNG and ZIP files up to 100MB are accepted. For double-sided printing, put the front on page 1 and the back on page 2 of one PDF. You can also order now and upload your artwork later.
Product Details

Specification:

- Size: A3 – 297 × 420 mm (11.7 × 16.5 in)
- Paper: Gloss (130–350gsm), Silk (130–350gsm), Bond (120gsm) and Pulp (380 micron)
- Printing: full colour, printed on one or both sides
- Quantity: any amount from 1 (custom quantity), or 250, 500, 1,000 or 2,500
- Delivery speed: Saver, Standard or Express
- Delivery: free to UK addresses, with your estimated delivery date shown before you order

Artwork:

- Upload a PDF, JPG, PNG or ZIP file (max 100MB)
- Double-sided? Supply one PDF with the front on page 1 and the back on page 2
- The artwork preview shows trim, bleed and safe-area guides
- No file ready? Order now and upload later – we hold your order until it arrives
- Every file is checked by a real person before printing
Size Guide

Finished (trimmed) size:

- A3: 297 × 420 mm (29.7 × 42 cm, 11.7 × 16.5 in)

A and B size comparison:

- A0 = 2 × A1 = 4 × A2 = 8 × A3 = 16 × A4
- B sizes sit between A sizes: B2 is between A2 and A1, B1 between A1 and A0, B0 is larger than A0
- Strip posters are half the width of the matching A size

Framing tip: check your frame's internal size matches the poster size above.

Tip: keep text and logos at least 5 mm inside the trim edge.
Turnaround & Delivery
Care Instructions

- Keep your posters flat or rolled in their packaging until you are ready to put them up.
- To flatten a rolled poster, gently roll it the other way or leave it under light weight for a few hours.
- Hang with removable putty, poster strips, clips or a frame – sticky tape can tear the paper when removed.
- Standard poster papers are not waterproof: display indoors, behind glass or in a weatherproof frame.
- Avoid long periods in direct sunlight to reduce fading.
- Uncoated bond paper marks more easily – handle with clean, dry hands.
- Paper posters can be recycled with household paper.

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