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Chinese Series



The RD1 paper size, a unique and less commonly known format, holds its own distinctive place within the realm of standardized paper sizes. As part of the ISO 216 standard, it adheres to strict dimensions that ensure consistency across various applications.

RD1 measures precisely 2200 x 2200 mm. This square format is unusual in the world of ISO paper sizes, which typically follow a rectangular shape with a width-to-height ratio that's rooted in the square root of two. The RD1's equal sides make it an intriguing choice for specific design or printing needs where symmetry is paramount.

RD1 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

Despite its rarity, RD1 has found its niche within certain industries. For instance, large-scale mapping projects often utilize this size due to its ability to accommodate expansive geographical details without compromising on clarity or precision.

While not part of the more recognized A series (A0 to A10) or B series (B0 to B10), RD1 still adheres to ISO's meticulous standards for quality and uniformity. This ensures that regardless of where you are in the world, an RD1-sized paper will always maintain its exact dimensions.

While RD1 may not be as ubiquitous as other formats within the ISO 216 standard like A4 or B3, it serves specific purposes with aplomb. Its unique square shape and large dimensions make it an invaluable tool in industries requiring expansive detail representation on a single sheet.

Other Formats in the Chinese Series

Interesting facts about RD1

1: RD1 Paper is a Specialty Paper

RD1 paper is a specialty paper that is commonly used for printing engineering drawings and architectural plans. It is known for its exceptional durability and resistance to tearing, making it ideal for technical applications.

2: RD1 Paper Originated in Germany

The term "RD" stands for "Rapid Drawing," and the number "1" indicates the first size in the series. RD1 paper was first developed in Germany and has since gained popularity worldwide due to its unique properties.

3: RD1 Paper Size

The standard size of RD1 paper is 594 mm x 841 mm (23.39 inches x 33.11 inches). It belongs to the ISO A0 series, which includes other common sizes like A0, A1, A2, etc.

4: Compatibility with Other ISO Sizes

One interesting feature of RD1 paper is that it can be easily scaled down or up to fit other ISO sizes within the A-series. For example, two sheets of RD2 paper can be combined to create an exact fit for an RD0 sheet.

5: Historical Significance

The development of standardized paper sizes like RD1 played a crucial role in facilitating international communication and collaboration among architects, engineers, and designers. It allowed for easy sharing of technical drawings across different countries without the need for resizing or adjustments.

6: Water-Resistant Coating

To enhance its durability further, some variations of RD1 paper come with a water-resistant coating. This coating protects the drawings from accidental spills or exposure to moisture during construction sites or outdoor use.

7: RD1 Paper in Digital Age

While digitalization has reduced the reliance on physical paper, RD1 paper still holds its importance in certain industries. Many professionals prefer to have hard copies of technical drawings for better visualization and ease of annotation.

8: Environmental Considerations

RD1 paper is typically made from wood pulp, which raises concerns about deforestation and sustainability. However, there are eco-friendly alternatives available that use recycled materials or sustainable sources to minimize the environmental impact.

9: Special Handling Requirements

Due to its large size and delicate nature, RD1 paper requires special handling during printing and transportation. Printers need to ensure proper alignment and avoid any creases or folds that could affect the quality of the final print.

10: Versatile Applications

Besides engineering drawings and architectural plans, RD1 paper finds applications in various fields such as industrial design, cartography, topography, and even art. Its versatility makes it a preferred choice for professionals seeking high-quality prints with excellent durability.