jackie, you've been busted 16 x 12 is not a supershed. May i direct you to one of these for inspiration.
Oh dear , oh dear, oh dear, that is typical american —- how can it be any good unless its “hucking fuge”. After working in a 16 x 8 converted garage for the last four years , to me at least, 16 x 12 is a supershed !!!! Will also be 18 feet at the top left hand corner , due to the irregular space supershed will be situated. Will be up and running by the 14th april, so i can show you the finished article in the not too distant future. Believe me when i tell you tech-team. To me a 16 x 12 is a supershed!!!!
https://www.wareingbuildings.co.uk/w-bamber/