B2
B-Series (ISO 216) · 7 specs
Direct Answer
B2 is an ISO 216 standard paper size measuring 500 × 707 mm (19.69 × 27.83 inches) with a surface area of ~0.354 square meters. Operating with an exact 500 mm (0.5 meter) short edge, it is the benchmark format for commercial half-size offset printing presses, concert tour posters, and art museum prints.
Source: ISO 216:2007 (DIN 476-1) · Last reviewed Aug 28, 2026
Specs
| Width × Height (Metric) | 500 × 707 mm |
| Width × Height (Imperial) | 19.69 × 27.83 in |
| Nominal Surface Area | 0.354 m² (353,550 mm²) |
| Geometric Mean Origin | Geometric mean of A1 (594×841 mm) and A2 (420×594 mm) |
| Defining Dimension | Short edge is exactly 500 mm (0.5 meter) |
| Weight of 80 gsm Sheet | 28.3 grams |
| Primary Applications | Concert posters, retail promotional signs, commercial packaging mockups |
The 50×70 cm Industry Benchmark
In the global commercial print trade, B2 is commonly called '50×70'. Commercial frame manufacturers (IKEA, Nielsen) mass-produce standard picture frames in 50×70 cm, making B2 the most widely sold format for wall art, music concert posters, and photography prints.