So I'm thinking of raising part of the roof in the back about 24", maybe 30".
Reason is to have a sleeping area/loft. We have 25 feet of living space, and I don't want a permanent bed that takes a huge area and will only be used for "sleeping".
A murphy-bed was a thought, but between the folding up and down every morning and night, along with it covering up a window and the thickness of the mattress against the wall, it's not really an option either.
A futon is an option, but I'd rather use it mainly a sofa and as a bed for an occasional guest.
I would cut the pillars (see photos) and raise the roof. I would also use the old entrance doors, laid on their sides, as windows. The steel seems pretty thick on those door frames and should be fine, especially with more steel reinforcement.
Getting up to the bed would probably be permanent steps that are also storage shelves.
Anybody done this, and do I just use square tubular steel for the rises?