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A3 Poster

A3 Poster

1 Choose your size
A3
—
mm
×
mm
AreaEnter dimensions above
2 Quantity
1
Bulk discounts available for 5+
3 Finishing options
3 Choose delivery date

Click a date to select your delivery. Colour shows delivery speed and price.

Delivery —
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Express 24hr — printed same/next day (+25%)
Express 48hr — printed within 2 days (+15%)
Express 3–4 day (+10%)
Standard 5–7 days (£6.99)

Dates shown are your estimated delivery date — production time plus courier transit.

🎨 Professional design service
Our designers will create your artwork — +£14.99
📎 Upload your artwork (optional)
📁
Click to upload your artwork
or drag and drop your files here — multiple files allowed
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Not sure about your file? We'll check it and let you know if there are any issues.

📝 Notes for us (optional)
Select a size above —

Product total
£2.99

UK mainland delivery: £6.99 at checkout. Free collection available. Express production upgrades are shown above.

UK printed
Artwork check included
Fast dispatch

Product description

A3 Poster Printing UK

At 297mm × 420mm, A3 gives you twice the display area of A4 — making it the go-to choice for window posters, event promotion and high-visibility point-of-sale. Printed on 170gsm silk coated paper with full-colour CMYK inks at 300dpi.

Priced at £1.65 per square foot, minimum £2.99.

Ideal for

  • Shop window posters
  • Event and gig promotion
  • Restaurant and cafe menus
  • Exhibition and conference displays
  • Estate agent and letting boards

Frequently Asked Questions

Is A3 a standard size for window displays?

Yes — A3 is one of the most common sizes for retail window displays and notice board posters in the UK. It is large enough to be read from outside a shop window and fits standard poster frames widely available in high street stores.

What bleed should I include on A3 artwork?

Include 3mm bleed on all four sides — your artwork should be 303mm × 426mm with the live area content kept within 5mm of the trim edge.

Can I order A3 and A4 posters in the same order?

Yes — add each size to the basket separately. There is no minimum quantity and no limit on mixing sizes in a single order.

Specifications

Material
170gsm silk coated paper
Print
Full colour CMYK
Finish
Silk / satin
Sizes
A4 to A0, B1, B2
Turnaround
From 1 working day
Min. order
1 poster
🛒 Added to basket! View basket →
Product buying information

Is A3 Poster right for your job?

Choose a larger poster when viewing distance and visual impact matter; choose a smaller format for close viewing or tighter spaces. Our posters are waterproof and tear-resistant for extra durability.

Media170gsm silk coated poster stock
DurabilityWaterproof and tear-resistant for more durable display use
Finished size297 × 420mm
ColourFull-colour CMYK print
Best forRetail, events, notices, campaigns, presentations and display graphics
Before you upload artwork

Supply print-ready artwork at the correct final size. PDF is usually the safest format; use CMYK colour and sufficient resolution for the finished size.

Consider another product if…

Avoid enlarging low-resolution artwork without checking quality first, as small images can become soft or pixelated.

Useful before ordering

Artwork Guide →Printing Guides →Poster Size Guide →A1 vs A2 Guide →
Printing Central Advice

Helpful printing guides

Choosing between materials, sizes or artwork options? These practical guides answer the most common questions before you order.

Printing Guides & Advice →Poster Size Guide: A0, A1, A2, A3 and A4 →A1 vs A2 Poster Size →How to Prepare Artwork for Large Format Printing →
Order with confidence

Helpful information before you buy

Clear delivery, artwork and support information so you know what to expect before your print goes to production.

UK Mainland DeliveryFlat-rate UK Mainland delivery is currently £6.99. Free collection is also available.
Artwork help availableUnsure whether your file is suitable? Check our artwork guidance or contact us before the job goes to print.
Secure online paymentCredit and debit card payments are processed through Stripe, with additional enabled checkout options available.
Support if something goes wrongOur returns policy explains the process for faulty, damaged or incorrect printed items.
Delivery & Collection →Artwork Guide →Printing FAQ →Returns Policy →Contact Us →