The ballroom fits:
The size of the ballroom is 160m² (10,40m x 15,60m) and hight approx. 8 m. The size of the 2nd floor lobby is approx. 130m² (n. 5m x 26m).
From the 'For the event organiser' link you will find anwsers to most frequently asked questions and more information on organising an event in G18 Ballroom. For the time being this file is only available in Finnish.
Your table plan and the below 'additional information form' should be filled out and returned to firstname.lastname@example.org latest two weeks before the event.