Why basements work
Basements are naturally dark, which helps projectors, and they're separated from bedrooms, which helps sound. Finishing a basement is also the perfect time to run every cable a theater needs.
Screen or projector
In a dark basement, a projector and a large screen give the most cinema-like picture for the money. Low ceilings can limit screen height and projector placement, so measure before you choose. A very large TV is simpler and works even with some light. See projector installation.
Sound
A 5.1.2 or 7.1.4 Dolby Atmos layout works well in most basements. In-ceiling height speakers fit between joists; plan around ducts and beams. Insulation in the ceiling and walls helps keep sound from traveling upstairs. See Dolby Atmos theaters.
Seating and layout
Plan seating distance from the screen size, and a riser if you want two rows. Leave walkways and room for recliners. See seating and screen distance.
Lighting
Dimmable sconces, step lights and a Movie scene that fades the lights make a basement feel like a theater. See theater lighting tips.
Moisture and equipment
Basements can be damp. Keep equipment off the floor, plan ventilation for the rack and projector, and consider a dehumidifier. Place the equipment closet away from the sump pump and water heater.
What to run before drywall
- Speaker wire to every speaker location, including ceiling
- HDMI or HDBaseT and power to the projector or TV
- Network to the equipment location and seating area
- Low-voltage for lighting keypads and a touch screen
- Conduit from the equipment closet to the screen wall