I-Joists or 2X12 lumber for an upstairs master bed/bath and what size beam for 6'X16' overhang?

Engineers welcome to answer these questions:)





Wondering if I should use I-Joists or 2X12's for an upstairs floor and how far apart? Most of the 2nd floor will be a master bed and bath. There is room left for something I haven't figured out yet maybe a little office or just open space for whatever.





The 2nd floor is 26X31. I want the floor to be super solid, no bounce if I can get away with it. I would like it strong enough for a king water bed, it's furniture if I decide and up to 10 people at anytime. The bathroom will have tile in the walk-in shower, a corner tub and a heavy counter-top.





MORE DETAIL: The first floor plans started as 20X24 with a 6X8 bathroom sticking out on one side. Now I have added 7 feet to the length for an interior staircase and storage which makes total length now 31' and the bathroom/storage length now 15'. From the bathroom to the house there will be a 6' overhang spanning 16'. I will need some kind of a beam for this span as well that supports the upper floor.





Thanks for all your help in advance.I-Joists or 2X12 lumber for an upstairs master bed/bath and what size beam for 6'X16' overhang?
Since I-Joists are engineered or manufactured which ever way you like it said, if you take your dimensions to the manufacturer they will make your joist exactly to suit whatever purpose you need, I-Joist hands down for your special need.I-Joists or 2X12 lumber for an upstairs master bed/bath and what size beam for 6'X16' overhang?
I can't picture your plan from your description. I can tell you that 2x12 joists can span 18ft at 16';oc. I joists can span farther and do give a stiffer floor.