30.3.2026
4
minute read
Tips

Which flyer format should you choose for advertising?

We show how to choose the right flyer format — A5, A6 or DL — based on your campaign goals, budget and distribution. We compare their use cases and explain how to match the format to your message to maximise impact and avoid wasted spend.
Minimalist brochure held in hand on dark background
Share

A5, A6, or DL — the formats flyers come in and when to use each

A printed flyer is one of the most classic and, at the same time, very effective marketing tools. You can hand it directly to a customer, leave it on a counter, or include it in an order bag, and be confident that your message won’t get lost in spam or blocked by an ad blocker.

But there is one important detail that can affect your results even before someone starts reading. That detail is the flyer format.

A too-small flyer may lack sufficient information, while a larger one is more likely to be thrown away. Choosing a format that doesn’t match the distribution method can waste your printing budget.

At Four zeros, we print advertising flyers every day and know that the question “which flyer format should you choose?” actually includes several decisions: design, logistics, and marketing. In this article, we will look at the most popular flyer formats — A5, A6, and DL — and help you understand which format is best depending on your goal.

Why does flyer format matter so much?

The flyer format is not just the size of the paper — it’s an element of your marketing strategy. The format you choose affects the recipient’s first impression, the amount of information you can include, and the production cost. A smaller flyer format reduces the cost per unit but also limits space for content. A bigger flyer offers more possibilities, but it requires good design to avoid overloading the recipient.

That’s why it’s so important to understand the flyer format in the context of your goal. A well-chosen flyer format can significantly improve the effectiveness of your campaign, while a poor choice can make even the best design fail.

A5 Format (148 × 210 mm) — when your flyer needs to convey more

A5 is one of the most versatile and frequently chosen flyer formats. If you’re wondering which format to choose when you have more content to share, A5 is the safest option. With more space, you can show your offer, include pictures, and make sure everything is easy to read.

This flyer format is especially suitable for services, events, and informational materials that require more detailed communication. At the same time, it remains convenient for direct distribution. In terms of printing, A5 is a mid-cost option with very high effectiveness.

A6 Format (105 × 148 mm) — small flyer, big possibilities

A6 is the choice for those who prioritize speed and scale. This compact flyer format is ideal for mass campaigns where a simple, strong message is key. If you’re wondering, “Which flyer format works best for large print runs?” — A6 is one of the top options.

Its compact size makes the flyer easy to take along, and recipients are more likely to keep it. In addition, printing A6 flyers is one of the most cost-effective options, making it perfect for large promotional campaigns and e-commerce.

DL Format (99 × 210 mm) — elegance in a long format

FThe DL flyer format is perfect for brands that want to stand out and create a more premium image. Its slender proportions give the material an elegant and professional appearance.

DL flyers are perfect for mailing campaigns, as they fit neatly into envelopes, and for premium industries where aesthetics and attention to detail are crucial. This format automatically communicates higher quality and a focus on the brand’s image.

A5 vs A6 vs DL — a practical quick comparison

Each of these formats serves a different purpose, and there is no one-size-fits-all solution. A5 works well when you need more content and better readability. A6 is ideal for short messages and mass distribution, while DL is the choice for premium campaigns and materials intended for mailing.

Which flyer format works best?

In practice, there is no single best universal flyer format. It all depends on the goal of your marketing campaign, your budget, and your distribution method. Rather than looking for one perfect solution, it’s better to consider which format best fits your strategy.

It’s also worth noting that, beyond the standard options, there are less common formats. Sometimes the question arises whether a company prints B5 flyers. These formats are available, but they are mainly used for more extensive materials, such as catalogs.

5 questions to help you choose the right flyer format

Before placing an order, it’s useful to answer a few simple questions that will help determine which flyer format is best. First, think about the length of your message. If it’s just a single slogan and an image, a small A6 flyer is enough. For more content, A5 or DL is a better fit, and for premium materials, DL is usually the preferred format.

Equally important is how you will distribute the flyers. Compact formats, like A6, are perfect for adding to orders or street distribution. If flyers will sit on a counter or in a stand, A5 or DL is a good choice. For mailing campaigns, DL remains the most practical option.

Budget also matters. The smaller the flyer, the lower the cost per unit, so for large print runs, A6 is often the most economical. However, remember that flyer format is not just about size — paper quality and finishing also affect how your brand is perceived.

Consider the image you want to create. A smaller flyer works well for mass, dynamic communication, while a larger standard format, such as A5, emphasizes professionalism. If elegance is important, DL is the best choice.

Finally, decide whether your flyer will be folded. For brochures, DL in a Z-fold or A5 folded in half are good options. For simple flyers, any standard format works.

Practical tips from Four zeros: how not to waste your flyer budget

From our experience, one of the most common mistakes is printing too many flyers on the first try. It’s better to start with a smaller order, test its effectiveness, and then scale up. Every flyer should be carefully planned, not produced in excess.

Paper quality also matters. Even the best design loses value if printed on thin, low-quality material. When planning your flyer format, it’s important to consider not just the size, but also the quality of production.

Each flyer should have a single, clear call to action. Too many contact options distract the reader and reduce effectiveness. Equally important is proper file preparation for printing, as technical mistakes can affect the final result.

Consistency is also important. If you use different formats, such as A6 and A5, make sure all materials form a unified visual system. A consistent flyer format strengthens brand recognition.

Conclusion: the right flyer format is half the campaign’s success

A5, A6, and DL represent different approaches to communication, and each format has its specific use. There is no single best universal flyer format. What matters most is alignment with your campaign goals, budget, and distribution method.

If you’re wondering which flyer format to choose, approach the decision strategically. The right format is not just about aesthetics, but also has a real impact on the effectiveness of your campaign.

At Four zeros, we support our clients not only in choosing the right flyer format but at every stage of production — from design to final printing.

📞 Contact us today — order flyers online or visit our print center in Warsaw at 4/LU2, LU3 Leścińska Street. Four zeros — printing that makes an impression.