Greeting cards are designed to meet certain requirements for your brand, industry, and the occasion for which you are designing these cards. Custom cards are not restricted to some specific sizes, shapes, and functionalities. However, among the most popular greeting card sizes are A2, A6, and A7.
Continue to read and learn what greeting cards are, their sizes, and how you can showcase your brand identity and boost the image of your brand with these quality cards.
What are Greeting Cards?
Greeting cards are crafted using specialised thick paper or cards with decorative designs, personal messages, and attractive styles. They are used on different occasions, events, and holidays as a token of love, friendship, and a good impression.

Why Does Greeting Card Size Matter?
Greeting card sizes really matter in various aspects, from designing to sharing emotions, delighting the recipients, and managing and saving costs. The perfect sizes suit the standard envelopes, create a lasting impression, and save postage, mailing, and envelope customisation costs.
However, you can further explore the following significant factors that might help you get maximum benefits for your brand:
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First Impression Counts
Most of the time, the first impression determines the fate of your brand. Consciously produce the perfect sizes of your greeting card to create a strong and meaningful first impression of your brand.
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Functionality Needs and Envelope Matching
Where you need to produce small sizes, and the design you desire to create fits the small sizes, it is not wise to fit it to the large sizes of greeting cards. If you do so, it might cost, spoil the impression of your brand, and might lose your integrity in their eyes.
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Cost Implications and Savings
The best fit and standard envelope sizes might save you extra cost without compromising the functionality of your card packaging. Produce the sizes of your greeting cards with the desirable standard sizes, like small, medium, or large, that can communicate the best message of your emotions, love, and commitment to the recipients.
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Design Flexibility and Clean Layout
Standard sizes of the greeting cards offer versatile dimensions for everyday notes, holidays, and formal invitations. Consider the standard sizes to stay relevant with your uniquely crafted cards that ensure your design folds properly, does not overlap, and snugly fits in standard mailing envelopes. It will provide a clean layout to your greeting cards.

Common and Standard Greeting Card Sizes
Various standard sizes for greeting cards are commonly used to express emotions, share love, and greetings on different occasions, special events, and celebrations. Some of the popular and commonly used greeting card sizes are explained in the following lines:
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A2 Card Size
A2 card sizes for casual invitations, everyday messages, and thank you notes are most commonly used. They are produced with the dimensions 4.25 x 5.5 inches (folded), the most popular note card size.
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A6 Card Size
These card sizes are excellent for seasonal and holiday greetings, announcement mailers, and invitations for birthdays and similar other specific parties. Their dimensions are 4.5 x 6.25 inches (folded or flat) with a medium size option. A6 card sizes are also great for holiday greetings, sympathy notes, and photo cards.
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A7 Card Size
These cards provide extra space on the canvas for detailed notes and messages like event schedules, large typography, and fine photography. They are crafted with the dimensions 5 x 7 inches (folded) with matching envelope sizes. A7 card sizes are the top choices for formal invitations, specific announcements, and high-end client thank you notes.
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Square Cards
Square cards are produced mostly in small and large sizes, with their standard dimensions 5 x 5 inches for small and 6 x 6 inches for large greeting square cards in sizes. They offer a modern and unique canvas and are mostly used to meet retail and branding requirements. Custom square cards provide an opportunity to boost visibility and create highly aesthetic appeal.
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A9 Large Event Cards
A9 large event cards are among the best card sizes to elaborate corporate designs, used for extensive family newsletters, group sign cards, and more. They are excellently crafted with the dimensions of 5.5 x 8.5 inches (folded from 11 x 8.5 inches).
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Custom Card Sizes
To meet the personalised needs for the greeting card sizes for the detailed message, attractive patterns and designs, and to create your brand distinctions. Though they cost more, they provide a significant appeal to delight the recipients with perfectly communicated expressions, feelings, and emotions.

Table: Standard and Common Greeting Card Sizes
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Exploring the Types of Greeting Cards
The following are some popular greeting card types that are commonly used on different and specific occasions:
- Greeting Cards / Folded Greeting Cards / Birthday Greeting Cards
- Invitation Cards / Folded Invitation Cards
- Square Photo Cards and Custom Cards
- Note Cards & Event Cards
- Business Cards & Gift Cards
How to Choose the Right Card Size for Your Needs?
While choosing the perfect fit card size that ideally meets your needs, you need to consider some of the unmissable points. Here, in the following lines, we are listing a few of them for your convenience to understand and produce quality cards for your brand:
- Consider the Occasion and Mailing Requirements
- Assess Your Design Space Needs
- Use Size to Enhance the Card's Impact
- Budget for Printing and Materials
Additional Design and Mailing Tips for Your Right Card Sizes
Before you finally leap to produce your greeting cards and their sizes, it is wise to have a look at the following important tips that will definitely provide you with precious guidance in this regard. Consider the following:
- Folding: Keep the text and graphics away from the fold line as they are already printed flat and folded down the centre.
- Envelopes: Match your card size to the current envelope size, such as A2 envelopes (4.375 x 5.75 inches) or A7 envelopes (5.25 x 7.25 inches) to ensure a secure fit. However, for the custom sizes, you need to customise the envelopes to meet your card requirements.
- Postage: Standard rectangular sizes mostly used are A2, A6, and A7. They need no extra cost to ship using regular first-class mail postage as long as they do not exceed the weight and thickness limits.
Conclusion
From the variety of available greeting card sizes and custom card size options, you might choose the one that seems to fit your specific brand and greeting requirements. This is one of the most comprehensive blogs titled ‘know everything about greeting card sizes to make a difference. Choose the perfect sizes that ideally stay in accordance with your brand communication, invitation, and greeting requirements.
Greeting cards can be designed in different sizes to meet the specific requirements of your events, design specifications, and folding requirements. However, some standard greeting card sizes include A2, A6, and A7. For some more common sizes of greeting cards, you might refer to the above lines for greater understanding.
A2, A6, and A7 are among the most desired and popular greeting card sizes that you can choose to meet your standard requirements. And the square greeting cards are mostly produced with 5 x 5” or 6 x 6” or 145 x 145 mm. For the square cards, you need to bear extra cost in respect of their postage and envelopes.
Have a look at your greeting card requirements, consider the tips shared in this article, or alternatively choose OXO Packaging for the perfect, quick, and simple solution to your custom greeting card needs. We will provide you with the perfect-fit greeting cards tailored to your personalised requirements.