Have been think what to do below my 128"screen.
I do have some gik small filler traps I call them that because they just fill under the screen wall/floor corner).
They go along underneath the whole screen frame(about 10')and about 8" thick.
No membrane on these as had them made quite a few yrs ago.
Hoping to put 6A Alphas in front of them along the bottom of the screen or monster's with FRT.
Not sure what would be better,perhaps either way as they both reflect mid/highs.
Yet again,maybe up front doesn't matter that much for reflections,at least on the floor/wall corner.
Will add the rest of the room is 98% trapped,ceiling,back wall ect is finished.
Room is 12'x19'x7'.5