-
I'm planning to anchor it to the three walls supported by 4 x 2 batons bolted in, with vertical supports beneath these on the walls on all four corners. I'll then run joists across is and lay plywood, with holes cut beneath where the mattress will lie. It will take a double mattress with room for a small table, light, etc. and there is good head height. I'm still working out which way to put the stairs, depending on the gradient.
is it having any supports at all or is it just attached to the walls?