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Standard Card Sizes

By: Dana Byerwalter, Editor, AllFreePaperCrafts

Have you ever wondered what the Standard Card Sizes are? Your questions are answered here! In this helpful guide, you will learn the standard greeting card sizes. We also provide detail as to what the popular uses are for cards of a given size, as well as which envelopes match. When you've finished reading through this helpful listing, you may have a clearer idea of which card sizes to begin with! Perfect for new card makers and experts alike, there are tidbits in this article you are sure to enjoy and learn from.

Standard Card Sizes

When choosing which card size you want, an important consideration is the envelope. Standard envelope sizes are A2, A6, and A7. Of course, envelopes can be custom ordered to any size of your choosing, but starting with the standard may make things easier!

Standard Card Sizes:

A1 - 3.5" x 4.875"

The A1 size is most often used in fold-over style for thank you notes and in flat style for wedding response cards. If you like to write shorter thank you notes, this is the right size for you. However, if you tend to write a lot, you may want to opt for the larger A2 size.

A2 - 4.25" x 5.5"

The A2 size is the most commonly used size for a wide range of cards, from invitations to announcements. As a fold-over style note card, the A2 gives you a little more room to write than the A1.

4 Bar - 4.875" x 3.375"

The 4 Bar size is similar to the A1 size. It is perfect for wedding response cards, or you can mix and match colors to create your own stationery.

A6 - 4.5" x 6.25"

The A6 size is a little less common than the A2 or A7, but it's a great in-between size for flat cards.

A7 - 5" x 7"

The A7 is a larger and more formal size for your most important events like holiday cards and wedding invitations. It has a substantial feel and gives you the most area for large photographs.

A8 - 5 3/8 x 7 3/4

The A8 cards work great for invitation cards and brochures.

A9 - 5 1/2 x 8 1/2

The A9 cards measure exactly half of an 8.5" x 11" sheet of paper, making this size perfect for printing easily.

#10 - 3 7/8" x 9 1/4"

#10 cards feature a slender design that is fun to use as stationery or unique party invitations. You can even use them as unique wedding invitations.

Biz (Business) - 3.5" x 2"

This is the size of a standard business card, and is used for calling cards and wedding table placecards as well.

Square - 5.5" x 5.5"

The square card makes a stylish, unexpected presentation for wedding invitations and more.


Did we miss any important standard card sizes? Let us know in the comments below!

Sources Cited:

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Thanks for the great article Dana! Handy reference for card sizes.

Great article! This is a handy guide for card sizes.


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