How many meters does a 20-character banner need?

There is generally no limit to the length of banners.

Banners (banners) are made of silk or ink jet. However, it is recommended not to make banners too long, especially at the event site. Ten to twenty meters is a lot, because the banner still needs to consider the convenience of hanging. Height specifications mainly include: 35cm/40cm/50cm/60cm/70cm/80cm/90cm/100cm/10cm/120cm/150cm. The most commonly used sizes (heights) of conference banners are: 70CM and 80CM. The most commonly used sizes (heights) of activity banners are: 70CM, 80CM and 90CM.

Banners are a norm of ancient calligraphy. Modern banners are often propaganda banners, including banners on websites and banners that can often be seen in streets, squares and in front of doors. Because of its low cost, it can play a good role in advertising and has a wide range of applications.