My mother-in-law wants to install a new bathroom subfloor in a 1930's bungalow home she purchased in 1968. She also wants to keep the free standing vintage bath w/ base.
Its a nice size bath however, the bath is large at least 6ft (width I am unsure) I don't think she will be able to take the tub out without taking out a wall and she is determined not to have a lip. (raised floor from the hallway into the entrance of the bathroom).

Any advice as to putting in a new subfloor with this tub?