What are the standard paper sizes?

What Are the Standard Paper Sizes?

Understanding paper sizes is one of the most common questions we receive - and for good reason! Choosing the right size can make a big difference in how your print project looks, feels and functions.

📏 A Quick Overview of Paper Size Series

A Series (Most Common)

The A-series is the most widely used paper system around the world. It’s based on a 1:√2 aspect ratio, meaning each size is created by folding the previous size in half. The most familiar size is A4, commonly used for documents, letters, forms, and everyday printing.

B Series

The B-series follows the same aspect ratio as the A-series but offers slightly larger dimensions. These sizes are often used for posters, wall charts, and architectural drawings.

C Series

The C-series is designed primarily for envelopes, greeting cards and stationery. They’re especially helpful when selecting the perfect envelope size for your A-series documents or cards.

Note: In digital and large-format printing, the A-series is the most commonly used. B and C sizes appear more often in printing press environments and envelope manufacturing.

🛠️ Why Do Standard Sizes Exist?

Standard sizes make printing more efficient and cost‑effective. Machines, frames, envelopes and display fixtures are all built around these common dimensions, making it easier for customers to find compatible products.

Using standard sizes often means:
- Faster production
- Lower setup costs
- Easier matching with frames, holders, and envelopes

📐 Standard Sizes Diagram

❓ Do We Only Produce Standard Sizes?

Absolutely not!

While standard sizes are popular and often more economical, we can produce any custom size you need - whether it’s for a unique display, a special project, or a specific installation requirement.

Standard sizes simply serve as a helpful guide for frequently ordered products.

💬 Need Help?

If you have questions, concerns, or feedback, our friendly team is always happy to assist. We love helping customers find the perfect print solution.

Best of luck on your printing journey!