building regs.

[hammers4spanner]

what about if you change bathroom to wetroom?

 

[Bernie2]

Should be okay, less weight in small area. But making a bathroom a wet room involves a lot of work tanking every where.

Making a bedroom a wet room depends on lots of things. If you use ceramic tiles for the floor or install a unit wet room you have to check the floor loading. Have a look at the Building regs Construction guidance it usually gives you joist space loadings.