The stationary seats in U-shape are located around the parterre, i.e. floor area, on the tribunes of two different levels in the hall of Saku Suurhall. The loge boxes are located on the third level. Depending on the event the seats could have also placed on the floor area.
The number and location of the seats and stage etc in the hall varies proceeding from the event. See general directory of the house here.
You will find the plan of seat/places of the event of interest, if you click on the name of the specific event in the programme of events – the plan is located usually under the description of event.