I'm building out my first theater. Really, I am taking an existing room and adding a riser and nice couches.
At any rate, I am planning on building a riser, and I need a bit of advice on the riser and running some cables for the surround speakers. The cable I have is 12 Gauge cable, one for each speaker. (Red and black in each)
I am not opening up the walls, this is a renovation not a complete build out. We have an open wall that is 48 inches high that is open to the kitchen. Look at the top of the wall as the kitchen floor. See the below pticure
At any rate, the riser and back row of seats will go against that back wall, and the cables will run down the left (as you look at the couch) side of the wall. (The blue tarp is a sliding glass door) Since I can't open the walls, the only course I have is to run them on the floor. The floor will have carpet, and a good sealed and thick pad, but not very thick carpet. There is a 1/2 inch gap under the drywall, where the cables can tuck in nicely. The problem I have is determining whether or not to add a conduit to the riser. Or, just run them along the bottom of the wall and build the riser around them, knowing that I won't be able to pull them out again after. My concern (really, my wife's concern) is visibility of the cables and aesthetics. How can I get the cables into the riser (with carpet) and still make it look clean and professional?
The other question for cables...is there a way to run them next to a sliding glass door that is clean and protected. They will be covered with carpet, but there is no gap like running along the drywall. I'm hoping...the pad is thick enough that I can cut a channel in the pad that will prevent any bumps. Thoughts?
As for the riser, I am building a 2x10 riser, and it will be filled with insulation. I'm not worried as much about sound control since the room is open to other areas of the house. I just want solid construction. I see that some people add either one or two layers of plywood for the floor. Is the second layer necessary? I plan on using 3/4 plywood. Width will be from the left wall to the right wall which is just over 10 feet (10' 2"). Is the second layer used for sound control or beefier construction.
I thank you in advance for your advice.