B3 paper is part of the B series of paper sizes defined in ISO 216. It measures 353 mm x 500 mm (13.9 in x 19.7 in), which is half the size of B2 paper and twice the size of B4 paper. B3 paper has an aspect ratio of 1:root2, just like all other paper sizes in the B series.
The B3 paper size is commonly used for posters, book covers, brochures, and other printed materials that require a larger canvas than standard A4 paper. It’s also a popular size for architectural and engineering drawings, as well as technical documentation. Due to its size, B3 paper can accommodate detailed illustrations, diagrams, and text without having to be scaled down, making it a great choice for technical drawings and blueprints.
While B3 paper is larger than standard A4 paper, it can still be easily handled and stored in most office environments. It can be easily folded in half to create a booklet or brochure, and it can be used in many types of printers and copiers. However, it’s important to note that the size and weight of B3 paper may affect printing and handling, and it may require specialized equipment or handling.
Overall, B3 paper is a versatile and practical paper size that offers more space for creativity and technical precision than smaller paper sizes, while still being manageable and convenient for everyday use. Whether you’re creating a poster or designing a technical drawing, B3 paper provides a canvas that’s just the right size to bring your ideas to life.
B0
1000 × 1414 mm
B1
707 × 1000 mm
B2
500 × 707 mm
B3
353 × 500 mm
B4
250 × 353 mm
B5
176 × 250 mm
B6
125 × 176 mm
B7
88 × 125 mm
B8
62 × 88 mm
B9
44 × 62 mm
B10
31 × 44 mm
B0+
1118 × 1580 mm
B1+
720 × 1020 mm
B2+
520 × 720 mm