Most of my "barracks" were 2 man rooms in a 300 room 4 story hurricane/typoon/earthquake/fire proof concrete and steel version of a Holiday Inn. When I was on Base Maint. everything was spec'ed to have 50 year life span. Almost everything exposed was RMC... Far in excess of NEC.

I remember one open squadbay that had 50 people doing pull-ups on a feeder through the building in the rafters. I once heard that the goverment had a test for longevity of an item, they would leave said item in a room with a dozen Marines, and wait a day or so for them to take notice, and develop 20 ways to destroy it. [Linked Image]

Mark Heller
"Well - I oughta....." -Jackie Gleason