A3 poster – size 297 × 420 mm
A3 is the most widely used poster size for events, band posters and retail advertising – large enough to catch the eye, yet easy to display on doors, notice boards and shop windows without any special arrangements. The size is 297 × 420 mm, exactly twice the size of an A4 sheet.
Concert posters, event invitations, campaign offers, price lists, signage and social media visuals all work well in this size. Three paper options let you achieve exactly the right finish – matt, semi-gloss or eco-friendly recycled paper.
Easy to order online – domestic printing in Helsinki and fast delivery anywhere in Finland.
FAQs
170 gsm Matt Paper – A Clear and Stylish Choice
170 gsm matt paper is an excellent choice for brochures, instructions and other printed products where good readability and a pleasant feel are important. The non-reflective surface makes text easy to read and gives the finished product a refined and professional appearance. The paper is also easy to write on by hand.
Why choose 170 gsm matt paper?
- Good readability: the non-reflective surface is especially suitable for text-heavy printed products.
- Premium feel: the substantial paper weight gives the printed product a polished and professional appearance.
- Easy to write on: suitable for products where names, dates or other notes are added by hand.
Available paper weights: 90 gsm, 100 gsm, 120 gsm, 170 gsm, 200 gsm, 300 gsm and 400 gsm.
A responsible choice: FSC® and PEFC™ certified.
170 gsm Smooth Silk Paper – Bright Colours and a Refined Finish
170 gsm smooth silk paper is an excellent choice for brochures, flyers, advertisements and other printed products where bright colours and a clean, modern appearance are important. The smooth semi-gloss surface reproduces images and graphics sharply and gives the finished product a professional, high-quality look.
Why choose 170 gsm smooth silk paper?
- Bright colours: the smooth surface enhances images, colour areas and graphics.
- Subtle sheen: the semi-gloss finish looks refined without excessive reflection.
- Substantial feel: 170 gsm paper is well suited for brochures, flyers and promotional materials.
Available paper weights: 115 gsm, 130 gsm, 170 gsm, 200 gsm and 300 gsm.
A responsible choice: FSC® and PEFC™ certified.
160g Matte – 100% Recycled Paper
160g Matte is an eco-friendly and high-quality choice when you want a natural matte finish and durable appearance for your printed materials. Made entirely from recycled fibers, this paper maintains excellent print quality and adds an ecological and responsible value to your products. Ideal for brochures, reports, notebooks, and other environmentally conscious print materials.
Why choose 160g Nautilus Matte?
- 100% recycled paper: a responsible choice for the environment.
- Natural matte finish: clear readability without reflections.
- Versatile use: suitable for a wide range of high-quality printed products.
Available in multiple weights for various applications.
Eco-friendly choice: EU Ecolabel, FSC® and Blue Angel certified.
A3-poster 297 × 420 mm
Customize & Estimate
Start Customizing with Any Option
Why do posters still work?
Reaching your audience through social media has become more difficult and expensive. Algorithms, advertising fatigue and fragmented channels reduce visibility. At the same time, a well-placed printed poster has regained its value as an effective marketing tool.
- Impossible to scroll past – posters attract attention in the real world
- Local visibility – reach people in the right place at the right time
- No algorithms – visibility does not depend on social media platforms
- Cost-effective marketing – a single print can remain visible for weeks
Paper Options
Select the paper that best suits your project. Material options are chosen when placing your order.
Clear print quality without reflections – ideal for text-heavy posters and informational content.
Enhances colour depth and image quality – ideal for photo posters and visually striking designs. Also performs better outdoors than matt paper.
Made from 100% recycled paper – a great choice for environmentally conscious brands without compromising print quality.
Responsible printing: We use high-quality papers and print all products in-house in Helsinki, Finland.
Typical Uses
A3 is a versatile poster size suitable for events, retail spaces, notice boards and promotional campaigns. It works well both indoors and for short-term outdoor advertising.
- Event posters – concerts, festivals, theatre and sports events
- Band posters – gigs, tours and music promotion
- Information posters – maps, instructions and schedules
- Retail advertising – promotions, offers and new products
- Menus and price lists – cafés, restaurants and service businesses
- Seasonal campaigns – themed promotions and special events
Who Is an A3 Poster Suitable For?
A3 is a popular choice when your message needs to stand out in a physical environment without requiring a frame. It can easily be displayed on doors, windows, walls or notice boards.
- Bands and event organisers
- Cafés, restaurants and bars
- Retail stores and pop-up shops
- Associations, clubs and non-profit organisations
- Schools, universities and cultural institutions
Artwork Guidelines
Please supply your artwork as a print-ready PDF. Every file is reviewed before production.
- File format: Print-ready PDF
- Finished size: 297 × 420 mm (A3)
- Artwork size: 303 × 426 mm (including 3 mm bleed on all sides)
- Safe area: Keep text and logos at least 3 mm inside the trim line
- Resolution: Minimum 300 dpi
- Colours: CMYK or RGB
Frequently Asked Questions
What are the dimensions of A3?
A3 measures 297 × 420 mm (29.7 × 42 cm), exactly twice the size of A4.
Can I order a small quantity?
Yes. There is no minimum order quantity – you can order even a single poster if needed.
Which paper should I choose?
Choose 170 gsm Matt for text-focused posters, 170 gsm Semi-gloss for photo and image-heavy designs, and 160 gsm Recycled Paper for environmentally conscious projects.
Can A3 posters be used outdoors?
For outdoor use, we recommend 170 gsm Semi-gloss paper. Its coated surface resists moisture better than matt paper, making it suitable for events, campaigns and outdoor advertising.
How quickly will I receive my posters?
Standard production time is typically 2–4 business days. Urgent orders can often be produced as quickly as the next business day.
Are other poster sizes available?
Yes. In addition to A3, popular poster sizes include A4, A2 and A1. We also offer a wide range of custom sizes.
