Lemmee guess, the structural engineer calculated the load capacity with one of them RPN thingies.
lol
Legend has it that one day the great CEO Fred Bucy, prowling through the cubicles, saw an HP calculator on an engineer's desk. He snatched it up and smashed it on the floor. 'Twas after my tour of duty, but I can well believe it.
You will have to pry my HP RPN calculator from my cold, dead hands!