Originally Posted by
John Lampert
Also, I may have misrepresented the use for these rooms as "living spaces". They actually will be bedrooms.
Bedrooms are "living spaces" too.
As to the bathroom, the tub is a light-weight Sterling 4-piece unit and, yes, if a person wanted to waste water with a tub bath, the floor joists would be stressed beyond 40psi for a short time.
It's not the weight of the tub, it's the water in it. The best thing to do is to install a shower, no tub, that eliminates the 'will the tub ever be filled with water' issue.