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Navigating through paper sizes doesn’t have to be a puzzle. At Kwik Kopy, we’ve got the know-how, and we are here to share it with you.
Choosing the right printing paper size affects readability, impact, cost, and practicality. In Australia, most commercial and business printing follows the ISO 216 A-series standard, making A1, A2, A3 and A4 the most used sizes.
This guide explains how A-series paper sizes work, what each size is typically used for, and how to select the right format for your print project.
What Is A-Series Printing Paper Sizes?
A-series paper sizes are defined by the ISO 216 international standard, which is used throughout Australia and most of the world.
Each size:
- Shares the same proportions
- Can be folded in half to create the next size down
- Scales cleanly for design and print
For example:
- A1 folded in half becomes A2
- A2 folded in half becomes A3
- A3 folded in half becomes A4
This consistency makes A-series sizes ideal for both design flexibility and efficient printing.
A1 Size Printing
A1 size (594 × 841 mm) is a popular large-format option where visibility is essential.
- Promotional posters
- Retail and point-of-sale signage
- Trade shows and exhibitions
- Architectural and technical drawings
Ideal when your message needs to be seen from a distance!
A2 Size Printing
A2 size (420 × 594 mm) offers strong visual presence while remaining easier to handle than larger formats.
- Event and campaign posters
- Educational materials
- In-store signage
- Presentations and charts
Choose A2 when A1 feels too large, but A3 lacks impact.
A3 Size Printing
A3 size (297 × 420 mm) is one of the most versatile printing paper sizes used in Australia. How can you use them?
- Menus and table displays
- Brochures
- Postcards
- Large format printing
- Business card design
- Diagrams and layouts
- Internal presentations
A3 is especially effective when folded to A4 for multi-page designs.
A4 Size Printing
A4 size (210 × 297 mm) is the standard paper size for everyday printing in Australia. Use them for:
It is cost-effective, widely compatible, and suitable for most business printing needs.
Choosing the Right Printing Paper Size
Selecting the right paper size depends on how and where your materials will be used.
- Maximum visibility: A1 or A2
- Everyday business use: A4
- Compact or folded materials: A3
Your materials will be clear, professional, and fit for purpose without unnecessary printing costs.
What are some paper printing sizes in Australia?
Australia uses the ISO 216 A-series system, not the North American Letter size (8.5 × 11 inches).
For everyday business communication, A4 is the most effective and budget-friendly choice. It’s the standard size for reports, brochures, and stationery, making it simple to print, distribute, and file.
If you’re creating notepads or invitations, A5 offers a neat, compact option that still feels polished. For quick, high-volume promotions, smaller sizes like A6 or A7 are ideal for flyers, postcards, or business cards.
The smartest approach is to start with your purpose:
- Do you need maximum visibility? Choose a larger format.
- Do you need professional, everyday use? Stick with A4.
- Do you need handy, portable materials? A5 and smaller sizes work best.
By matching the paper size to the job, you will ensure your materials look professional, are easy to use, and deliver the right impact without unnecessary costs.
Contact us today!
Frequently Asked Questions
Need Help With Paper Sizes?
If you’re unsure which printing paper size is right for your project, your local Kwik Kopy centre can help.
Request a quote or explore our printing services for more info. Need something bigger? See our large format printing solutions.
Our teams across Australia provide expert advice on paper size, format, and finish to ensure your print works exactly as intended.
