Originally Posted by cuzed2 /forum/post/16863395
All good comments;
If it were me (and what i know now):
Assuming a reasonable width and depth to the room; my priority would be a 9' ceiling.
Next up; if two rows of seats are desired then yes; a minimum room depth of 22' (2' behind an AT screen, and 20' of useable seating depth for two rows. For width; yes I would want a minimum of 16'.
How about making sure you have provisions for a full bath on this floor, with all drains "cast" into the concrete floor.
Also make sure your basement slab and foundation sidewalls are insulated (and vapor barriered") on the exterior surfaces of your pour.
How about an equipment room (or EQ area) with a minimum of 2 - 20amp circuits, with dedicated grounds
Also - what every one else is saying...
Have Fun and Good Luck!
and... please share as you go
Most people i find that do a 2' false wall for an AT screen wish they would've gone 30-36". Measure any "decent" speaker and they're 28" deep, add binding posts and you're easily out to 30". (especially if you're putting the sub behind the screen as well)
If this is a basement room, also make sure that it's a TRUE 9 foot ceiling. Some builders call a 9' ceiling slab to joists, not accounting for duct work and utility lines. Also, ask the builder how much more it'd cost to "decouple" the room using staggered stud designs and RSIC sound isolation clips. Don't forget 2 layers of drywall... It may only seem like adding $2k to the build, but it'll easily add $4k to the finish work. Take this into account also on your room dimensions. You loose an 1 1/2 inches in drywall alone (2 layers plus RSIC standoffs, add more if you put sound panels on the wall too) Again, take into consideration walkways, seating placement, risers, etc. You don't want people sitting against the back wall for acoustic reasons (and you can't recline easily in any theater seating), What about a stage? That takes up usable floor space.
Also if you're to the point of studs, plan your wiring NOW. Once you have everything in the wiring arena figured out, double it. (you never know when/if a wire is going to go bad on you) Also, run conduit to any location with a display device, minimum 2.5" diameter. When i was doing my wiring, i wired in BEHIND the screen for AV and power in case the next guy just wanted a plasma/lcd and not a projector. To that same end, make sure you get power inlets installed for the display devices so you can wire them into a UPS back at your EQ rack. Also, if the EQ rack is out of sight, start thinking about where you want your IR extender eye to go.
Things like this are overlooked at this stage in the game but you'll kick yourself later when you realize that you have to do it after the walls are up.