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Belonging to the ISO 216 series, A2U is a unique paper size that holds its own in the realm of standardized dimensions. The ISO 216 series, renowned for its logical and practical approach to paper sizes, has been adopted by numerous countries worldwide, further enhancing the significance of A2U.

A2U's dimensions are precisely half of an A1 sheet and double that of an A3 sheet. This systematic division and multiplication pattern is a defining characteristic of the ISO 216 series. It ensures consistency across different sizes while facilitating easy scaling without distortion or loss of content.

A2U 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

Interestingly, the aspect ratio for all 'A' series paper sizes remains constant at approximately 1:√2 (1:1.414). This means that regardless of how many times you fold or cut an 'A' series paper along its shorter side, it will always retain this aspect ratio. Consequently, an A2U sheet maintains this same aspect ratio.

The 'U' in A2U denotes 'Uncut', indicating that these sheets are delivered in their original size without any cuts or alterations. This feature makes them ideal for various applications where larger uncut sheets are required such as professional printing jobs, architectural drawings or large-scale artwork.

With its precise dimensions and consistent aspect ratio derived from the ISO 216 standardization system coupled with its uncut nature, A2U stands as a versatile choice among professionals seeking quality and consistency in their work materials.

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Interesting facts about A2U

1: A2U Paper Size

A2U paper is a unique paper size that falls under the ISO 216 standard. It measures 594mm x 1682mm, making it significantly longer and narrower than traditional paper sizes.

2: Uncommon Usage

The A2U paper size is not commonly used in everyday printing or office settings. It is primarily utilized for specialized purposes such as architectural drawings, blueprints, and large-scale artwork.

3: Origin of the A Series

The A series of paper sizes, including A2U, was first introduced in Germany during the early 20th century. The goal was to create a standardized system that would simplify paper production and usage across different countries.

4: Unique Proportions

A2U paper has a unique aspect ratio of approximately 1:2.83. This elongated shape allows for efficient representation of wide-ranging content like panoramic photographs or detailed technical drawings.

5: Limited Availability

Due to its specialized nature, finding A2U paper can be challenging compared to more common sizes like A3 or letter-sized sheets. It may require sourcing from specialty suppliers or print shops that cater to large-format printing needs.

6: Compatibility with Printers

Achieving accurate prints on A2U paper requires printers capable of handling larger sheet sizes. These printers often utilize roll-fed mechanisms or flatbed designs to accommodate the dimensions and weight of this unique type of paper.

7: Artistic Applications

A2U's elongated format makes it popular among artists for creating visually striking pieces. Its size allows for the exploration of unconventional compositions and the inclusion of intricate details.

8: Historical Significance

The A2U paper size is part of a long history of paper standardization efforts. The ISO 216 standard, which includes A2U, was first adopted in 1975 and has since been widely accepted across many countries worldwide.

9: Customization Possibilities

As with other paper sizes in the A series, A2U can be easily scaled down or up to create smaller or larger formats while maintaining the same aspect ratio. This flexibility allows for adaptability in various printing requirements.

10: Environmental Considerations

A2U paper, like other papers, can be produced using sustainable practices such as sourcing from responsibly managed forests or utilizing recycled materials. Choosing eco-friendly options helps reduce the environmental impact associated with paper production.