A5 or DL: Which Leaflet Size Should You Pick?

A5 leaflets suit content-heavy pieces that need more visual space, while DL leaflets, being narrower and taller, suit concise messages, mailings and rack or counter display. The right choice depends on how much content you have and how the leaflet will be distributed or displayed.

What are the physical differences between A5 and DL?

A5 measures 148 by 210mm, a squarer, more compact shape offering generous space for images and text blocks. DL measures 99 by 210mm, a slim, elongated format that shares the same height as A5 but is considerably narrower, giving it a distinctly different visual proportion better suited to shorter, punchier messaging.

Why does DL suit mailed communications so well?

DL was originally designed to fit neatly into standard envelopes without folding, which is why it remains a common choice for direct mail campaigns, appointment reminders and formal mailed notices. Its slim shape also means it can be folded further, into a tri-fold layout, to create additional internal panels for more detailed content while keeping the outer format compact.

When does A5 make more sense than DL?

If your leaflet needs to carry a fuller message, several images, or distinct sections of information, A5's larger surface area gives you room to breathe. Content that would feel cramped on a narrow DL leaflet, such as a menu, a product overview with several items, or a short-form guide, generally reads more comfortably on A5.

Format	Dimensions	Best suited to
A5	148 x 210mm	Content-heavy pieces, guides, menus
DL	99 x 210mm	Mailings, rack display, concise messages

How does distribution method affect the choice?

A5 is a natural fit for door drops and hand-to-hand distribution, where its size feels substantial without being unwieldy, and it fits into an urban postcode sector door-drop campaign as easily as any other format. DL works particularly well in leaflet racks, reception counters or wherever a slim, stackable format displayed upright is expected by the reader.

Does design layout change between the two formats?

Yes. DL's narrow width often works best with a vertical, single-column layout, since horizontal designs can feel squeezed. A5's more balanced proportions give more flexibility for multi-column layouts, larger imagery, or a more open, generous design approach.

How should you decide which format fits your project?

Start by considering how much you actually need to say and how the leaflet will reach its audience. A short, punchy message destined for the post favours DL, while a fuller story destined for hand-to-hand distribution or a display area often favours A5. Considering both content volume and distribution method together usually points clearly towards one format.

For more detail on choosing between paper formats, see our paper sizes guide, or discuss your leaflet project with Minuteman Press Ipswich.

Weighing up your content and your distribution plan together makes the choice between A5 and DL far more straightforward.