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How to Choose the Right Size for Custom Printed Diaries

Last Updated: 24 February 2026

Key Points:

• Selecting the right diary size ensures they match user habits, improving daily use and long-term brand visibility.
• A7 and A6 are portable size options you can choose, while A5 and A4 are bigger sizes, ideal for detailed planning.
• Balancing size, audience needs, and budget maximises ROI for corporate gifting, onboarding, and executive campaigns.

Custom printed diaries are more than just stationery—they’re everyday branding tools that sit on desks, travel in bags, and help professionals stay organised. Whether gifting them to clients, equipping your internal teams, or planning a seasonal brand rollout, selecting the right diary size impacts how your brand is experienced day after day.
Here’s how to choose the format that aligns with your audience and objectives.

Understand How Diaries Will Be Used

Start with purpose. Will these diaries be used for light note-taking during meetings, detailed planning across weeks and months, or quick, on-the-go reminders?

• Smaller sizes like A7 and A6 are ideal for mobility and brief notes.
• Larger options such as A5 and A4 offer structure and space and are suited to users who plan extensively or prefer a more visible workspace.

Ultimately, format you choose should fit the way your recipients work. A diary that integrates seamlessly into their routine will become something they carry—and, by extension, a platform that consistently displays your brand.

Portability

A diary’s value lies in how easily it fits into your recipient’s daily routine. For professionals on the move—like sales teams or consultants—compact formats such as A7 or A6 are ideal for portability. Meanwhile, office-based staff or executives may prefer printed desk planners that offer more writing space and structure. 

Writing Habits

Everyone writes differently. Some professionals prefer short, bulleted notes, while others map out their entire day in time blocks or paragraphs. Therefore, the diary’s size needs to accommodate those habits.

• Custom pocket notebooks suit quick lists or small handwriting.
• Larger diaries support more detailed entries, planning tools, and multi-project tracking.

In other words, the closer the format fits their natural habits, the more often the diary will be used and the more visibility your custom branding will receive.

Bigger Diaries, Bigger Branding Impact

Custom-printed diaries offer valuable branding space, and size plays a big part. Larger formats like branded rocketbook notebooks you more room to include logos, colours, and personalised touches that elevate your brand. However, smaller diaries still work well with subtle features like foil stamping or debossing, but they call for a cleaner, more focused design approach.

Budgeting for Value

From a cost standpoint, smaller diaries are typically more cost-effective and ideal for bulk campaigns, events, or onboarding packs. In contrast, larger diaries carry a higher price but offer greater long-term value—mainly when used by executives or key clients—thanks to consistent use and extended brand exposure. As always, the right choice should balance the budget with purpose, not just cost.

Which Size is Best?

Selecting the appropriate diary size is crucial for aligning with your brand’s objectives and ensuring recipient satisfaction. Here’s a concise guide to help you make an informed decision:

In this paper size system, the higher the number, the smaller the page dimension is. But we will only mention the most common paper sizes for diaries, starting with:

A7 DIARY SIZE
74 X 105MM (2.9 X 4.1IN)

The A7 paper size is comparable to pocket-sized journals that may be brought with you wherever you go. It is perfect for creating lists and keeping records while you are on the go. Alternatively, use it as a one-sentence journal or a notebook for your favourite quotes.

A6 DIARY SIZE
105 X 148MM (4.1 X 5.8IN)

If you want a pocket diary larger, the A6 size is a good choice for an everyday carry journal. You can jot down your daily to-do lists, meeting notes, and day-to-day itineraries in a customised diary that is the size of an A6.

A5 DIARY SIZE
148 X 210MM (5.8 X 8.3IN)

A lovely compact-size diary is neither too large nor too small, and journals that are the size of an A5 are the perfect example. But if you want to take it with you wherever, you must keep it inside a laptop bag or a backpack. The size is ideal for journaling, planning, organising, keeping track of your life audit, your life goals, doodling, and so much more.

A4 DIARY SIZE
210 X 297MM (8.3 X 11.7IN)

If you want a great deal of space to write in your diary or keep a log of a hectic schedule, an A4 or desk-size journal is a wonderful alternative. It works great for writing essays, stories, and writing exercises of any length. You can also use it as a sketchbook or drawing pad.

Common Questions

Can I fully customise the design and layout?

Yes. Every part can be branded to reflect your company’s identity, from logo placement and colour themes to internal pages and cover finishes.

Can I order multiple diary sizes in one batch?

Absolutely. Many companies mix smaller diaries for staff with larger ones for managers or VIP clients.

What materials are available for covers?

Options include PU leather, fabric, cork, and recycled materials, offering different tactile and visual branding effects.

Can I request a sample before confirming the order?

Yes. Samples are available to ensure you’re happy with the size, feel, and design before full production.

Order Diaries That Make a Lasting Impression

Choosing the right size for your custom-printed diaries is more than a logistical choice—it’s a branding strategy. After all, the correct format shapes how often the diary is used and how your brand is seen. At Cubic Promote, we create practical diaries that are professionally designed and tailored to real business needs. Whether it’s for corporate events to internal gifting, we help you make a lasting impression with every page.