Interior Bench II is built in the Church for 4 Oiled Plank and 6 Bronze Detail. +5 church quality. Unlocked by Church Carpets. Its construction site needs Building mastery 3: below that, hits do nothing.
It adds 5 to church quality. More elaborate sermons need a higher church quality. Each new best church quality counts towards the Sacred Interior inspiration. Church Carpets also unlocks Improve the Church II.