Changing shower to a bathtub

agesilaus wrote:
Weight would be the major issue. Your home bathtub if it is not on the ground floor requires heavy beams, closely spaced to support it. My house has 2X8(might be 2x10) beams with 12 inch spacing. RV's are not built on the ground and don't have the bracing for a tub. Water is heavy (62.4 lb/CF) and you also have the weight of the bather.

And do you have room for a tub? Few RV bathrooms are that large.

The RV tubs look like they are drop-in's into your present shower unit, having dimensions typical of shower units. In our past 3 MH's I wanted to replace the shower floor with a tub, but never got around to doing it.
Here's a link to some options: http://www.rvpartscountry.com/RvBathtubs.html

I don't know how to attach a pic of an example 24 x 36 tub.

I imagine one would just use the present drain hole. There would be the concern about sealing the sides so that water would not leak down the sides when using the showerhead or splashing around with your baby duck. And then there is the question how to seal the front/visible side of the tub, where it would meet the shower door.

I am sure someone has solved these things.

Obviously, the size will be prejudiced against overweight people, and the elderly and others with arthritis and orthopedic problems might have difficulty getting up from being scrunched into such a small area.

BUT, similar to your situation, my wife also wants her tub!