Free checklist
Before the ceiling closes.
7 things to agree with your contractor for a home cinema room. The cheapest moment to get it right is before the ceiling closes; after that, almost every fix means opening walls.
✓The room, the riser and the headroom above it
✓The front wall: screen size, speaker depth and solid backing
✓Conduits and power where the cinema needs them
✓Air conditioning you can't hear, and keeping the sound in
✓Lighting, network and the equipment cabinet