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A Series



Belonging to the ISO 216 series, A1+ is a unique paper size that stands out in its class. This format, larger than the standard A1, offers an expansive canvas for various applications. It measures 625 x 880 mm or approximately 24.6 x 34.6 inches, providing ample space for detailed designs and comprehensive layouts.

As part of the ISO series, A1+ adheres to the aspect ratio of √2:1 which ensures that two pages next to each other equal the next paper size up and half a page equals the next size down. This harmonious scaling is a distinctive feature of ISO standards and contributes significantly to their global acceptance.

A1+ paper dimensions


View All A Series

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

A1+ finds extensive use in industries requiring large-scale prints such as architecture, engineering, advertising and design. Its generous dimensions make it ideal for technical drawings, architectural plans or promotional posters where clarity and detail are paramount.

Interestingly enough, despite its larger size compared to A1 (594 x 841 mm), A1+ maintains excellent print quality due to advanced printing technologies available today. This ensures that even with its increased dimensions, there's no compromise on visual fidelity.

Whether you're looking for precision in technical drawings or impact in advertising materials - A1+, with its adherence to ISO standards and impressive dimensions - delivers on all fronts.

Other Formats in the A Series

Interesting facts about A1+

1: A1+ Paper Size

A1+ paper is part of the ISO 216 standard series, which defines the sizes of paper used globally. It measures 594 x 841 millimeters or approximately 23.4 x 33.1 inches.

2: Enlarged Version of A1

A1+ is an enlarged version of the A1 paper size, with an additional width of approximately 60 millimeters or 2.36 inches.

3: Ideal for Posters and Large Prints

The larger dimensions of A1+ make it ideal for printing posters, architectural plans, engineering drawings, and other large-scale prints that require more space than standard sizes can provide.

4: Not Widely Available

A1+ paper is not as commonly available as standard sizes like A3 or A4. It may be more challenging to find in stationery stores compared to smaller formats.

5: Compatible with Other ISO Sizes

A1+ maintains the same aspect ratio as other ISO paper sizes within the same series. This means that it can be easily scaled down from larger formats like A0 or scaled up from smaller formats like A2 while preserving the proportions.

6: Historical Origins

The ISO paper size system has its roots in a German standard called DIN (Deutsches Institut für Normung), which was first introduced in the early twentieth century to promote uniformity in paper sizes across different industries and countries.

7: International Adoption

The ISO paper size system gained international recognition and adoption over time due to its practicality and ease of use. Today, it is widely used in most countries around the world.

8: A1+ and the A Series

A1+ belongs to the A series of paper sizes, which includes formats from A0 (largest) to A10 (smallest). Each size is precisely defined by halving or doubling the dimensions of the previous size in a consistent manner.

9: Standardized Paper Sizes

The ISO 216 standard series aims to provide a range of paper sizes that are easy to handle, store, and reproduce. The standardized sizes facilitate efficient printing processes and reduce waste by optimizing paper usage.

10: Beyond Printing

A1+ paper is not limited to printing purposes alone. Its large surface area makes it suitable for various creative projects such as artwork, sketching, and crafting where a larger canvas is desired.