A3

The A3 paper size is a popular format in the A-series and measures 297 x 420 millimeters. It is smaller than the A2 format and larger than the A4 format. A3 is often used for printing brochures, flyers, technical drawings, charts, tables, and other graphic representations that require more space than the A4 format provides.

The aspect ratio of the A3 format is also 1:1.4142, which corresponds to the golden ratio. This ratio is often used in art and design as it is considered aesthetically pleasing and can help create a balanced design.

The A3 format is particularly suitable for printing detailed technical drawings and plans that require higher accuracy. It is also a popular format for flyers and brochures as it provides enough space for graphics, images, and text.

A3 paper is available in various weights and finishes, from thin sheets for general use to heavy paper for professional printing of graphics and posters. The paper can be printed on inkjet or laser printers as well as professional plotters or large format printers.

In the architecture and construction industry, the A3 format is often used for designs and plans that do not need to be as detailed as A2 or A1 but still provide enough space for a clear representation. It is also used in the stationery industry to produce notebooks, calendars, and other products in A3 size.

The A3 format provides enough space for detailed drawings, plans, and print materials such as flyers and brochures. It has the aesthetically pleasing aspect ratio of 1:1.4142 and is available in various paper types and weights. It can be printed on various printers, from inkjet or laser printers to professional plotters and large format printers.