a 2 story ceiling. We hired someone to basically build an entirely new floor/room above the living room. Pretty intense 2 month project, but totally worth it. Before, sound echoed all over the house up and down. When they built the room, they very nearly soundproofed it as well. Gotta credit my wife for the idea. The guy we hired built the raised platform when the room was being constructed and we did the sound/audio/screen setup on our own. We did the cabinets/counter later on our own as well.