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US Envelope Series

9 x 12 Clasp

9 x 12 Clasp

The 9 x 12 Clasp paper size, a unique and versatile format, is not part of any standard ISO or ANSI series. Instead, it carves its own niche in the realm of paper sizes. This particular dimension offers a distinctive blend of functionality and aesthetics that sets it apart from more conventional formats.

Named for its characteristic clasp closure, the 9 x 12 Clasp paper size is primarily used for envelopes. Its dimensions provide ample space for multiple or larger documents, making it an ideal choice for businesses and individuals who require a secure yet spacious solution for their mailing needs.

9 x 12 Clasp paper dimensions


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2A046.81 x 66.221189 x 1682119 x 1683370 x 4768
A120.51 x 0.7113 x 181 x 237 x 51
4A066.22 x 93.621682 x 2378168 x 2384768 x 6741
A110.71 x 1.0218 x 262 x 351 x 74
A101.02 x 1.4626 x 373 x 474 x 105
A3+12.95 x 19.02329 x 48333 x 48933 x 1369
A1+23.98 x 35.98609 x 91461 x 911726 x 2591
A0+35.98 x 50.87914 x 129291 x 1292591 x 3662
A64.13 x 5.83105 x 14811 x 15298 x 420
A55.83 x 8.27148 x 21015 x 21420 x 595
A48.27 x 11.69210 x 29721 x 30595 x 842
A311.69 x 16.54297 x 42030 x 42842 x 1191
A91.46 x 2.0537 x 524 x 5105 x 147
A216.54 x 23.39420 x 59442 x 591191 x 1684
A82.05 x 2.9152 x 745 x 7147 x 210
A123.39 x 33.11594 x 84159 x 841684 x 2384
A72.91 x 4.1374 x 1057 x 11210 x 298
A033.11 x 46.81841 x 118984 x 1192384 x 3370

One might wonder why this specific size has gained popularity. The answer lies in its perfect balance between practicality and presentation. At 9 inches by 12 inches, this format can comfortably accommodate standard letter-sized documents (8.5 x 11 inches) without folding or creasing them - a feature highly appreciated by professionals who value the integrity of their documents.

Moreover, the clasp closure adds an extra layer of security to the contents within. Unlike regular adhesive closures that can be easily tampered with, clasps provide a more robust seal that ensures your important documents reach their destination intact.

While not conforming to any ISO or ANSI standards, the 9 x 12 Clasp paper size holds its own due to its unique combination of practicality and security features. It's proof that sometimes stepping outside standardized norms can lead to innovative solutions that cater perfectly to specific needs.

Other Formats in the US Envelope Series

Interesting facts about 9 x 12 Clasp

1. The Origin of the Clasp Paper

The 9 x 12 Clasp paper, also known as the clasp envelope, was originally designed to securely hold important documents during transportation. The metal clasp and reinforced holes allowed for easy closure and ensured that the contents remained intact.

2. A Versatile Paper Size

The 9 x 12 Clasp paper is considered a versatile size because it can accommodate various types of documents, including legal-sized papers, certificates, photographs, artwork, and more. Its larger dimensions make it suitable for storing or mailing items that require extra space.

3. Popular in Office Environments

The 9 x 12 Clasp paper is commonly used in office environments for filing purposes. Its size allows for easy insertion and removal of documents without folding or damaging them.

4. Ideal for Art Projects

Artists often prefer using the 9 x 12 Clasp paper due to its larger surface area. It provides ample space for sketching, drawing, painting, or any other artistic endeavors.

5. Historical Significance

The concept of using clasps to secure envelopes dates back to ancient times when wax seals were not yet prevalent. People would use metal clasps or strings to fasten their letters and ensure their privacy during delivery.

6. Environmentally Friendly Option

The 9 x 12 Clasp paper is available in various eco-friendly options such as recycled paper or FSC-certified (Forest Stewardship Council) paper made from sustainable sources. Choosing these options helps reduce environmental impact.

7. Customization Possibilities

The plain surface of the 9 x 12 Clasp paper allows for easy customization. It can be printed with company logos, designs, or personalized messages to create a professional and unique appearance.

8. International Usage

The 9 x 12 Clasp paper is part of the international ISO B series of paper sizes. This series is widely used in countries following the ISO (International Organization for Standardization) standards, including most European and many Asian countries.

9. Compatibility with Printers

The 9 x 12 Clasp paper is compatible with most printers, making it convenient for printing documents directly onto the envelope without the need for additional labels or stickers.

10. Durable Construction

The 9 x 12 Clasp paper is typically made from heavyweight materials to ensure durability and protection of its contents during handling and transportation.