The main stage has an area of 500 m2; the stage tower is 28 m high. The wings and backstage areas are big enough to accommodate the movement of large set components. The stage can be rotated, raised or lowered as the director and set designer require. The stage is divided into four sections, which can be moved independently up and down to create effects in performance or to bring set components up from storage to the stage level.
The orchestra pit can also be raised, lowered and resized according to the size of the orchestra and the acoustic effect required. The stage technology and orchestra pit of the main stage were renovated in 2007 to ensure safety and reliability.
Operas are performed in the original language, as is the international practice. A Finnish, Swedish and English translation is provided as surtitles, i.e. displayed at the top of the stage.