I have 36inch doors.
If I put 2 of my LMS's and 2 of my 21's in my main house, I could easily accommodate 10 sealed 32's and 2 HzHorns.
But that would be the limit and half my absorbers would be rendered useless as a result.
If I reduced the number to 6 32's and 2 HzHorns then there would be no impact on the absorption over what I have now.
None of these would be in optimal boxes though, but they'd be in decently-sized boxes.
I'm still working on just getting enough amplification for the subs and speakers I already have, which is taking WAY longer than I originally planned back in 2012.
There are also other areas of my theater that desperately need love, I've been neglecting them to fund electronics for the last 2 years.
I've added $8400 worth of electronics to my theater in just the last 2 years alone, and even with all the stuff I already had/have, I'm still not even half-way done YET.
My net worth has been increasing at a rate of >$4200 a month for the last 8 years, and that is STILL TOO SLOW.
I can't complain at all though, I live very-very comfortably. I wouldn't change a damn thing.
Things just take longer than planned is all.
With all things considered: Life is good ATM! (knocks on wood)