Home theatre in a garage-Acoustics Forum-Acoustic Fields Forum

Hey everyone,
I am in the early stages of planning for my home theatre and would like some advice so I gan get this right the first time.

I have two fixed external dimensions and one variable, this is the one I am unsure of.

Length 20ft
Height 8-12ft sloped front to back, mono pitch.
Width UP TO 16.5ft

I will be running 4 12″ LF drivers eventually,

Aiming for wall to be approx 12″ thick.

So my two questions at this stage

1. should I keep the sloped ceiling?? I would like to if possible.

2. what is the ideal dimension for my width given my length and height available.

Any advice or opinion welcome

Regards Tom