A 10x10 trade show booth space is the most common size when exhibiting at a trade show or expo. However, there is no need to look "common" as an exhibitor trying to find new prospects. 10ft x 8ft Hopups are the most common size for a great hopup, since it makes the perfect custom backdrop. And if you're looking for a sleeker version, the 10ft EZ tubes are a breeze to use.