the panels in the corners will be relatively useless , certainly not effective as bass
traps.... unless you hinge them so they can come out to 45 degrees across the corner....
it ought to be possible to arrange it so they come out, overlay each other, and clip
together to create a "mostly" 100 mm corner panel trap, and fold back into the walls when
not in use.... that would be worth the effort..... and ought to keep domestic peace.
the rest, well, do what you can, if you can mount a 50mm panel at least 25mm off
the wall surface it would help.... a 50mm panel spaced 50mm from the wall is almost (but
not quite) as effective as a 100mm panel directly on the wall.
if you don't know who i am, i aint gonna tell you.