It would help if you could post a sketch of the space, showing how the rooms relate to each other and where doors and windows are.

Here is the ploor plan , the area is 6'x17'5" , there is window on the left wall.
we are thinking aboout put tub in the shower, that will use about 6x6.5 space, but concerned about how to do waterproof, any suggestions?

thanks

This post was edited by faithleaf on Wed, Sep 3, 14 at 14:30

What is in there now - and where is the plumbing located? Are you willing to move doors?

tube and toilet placement close to the hallway bathroom, we will totally redo the bath, so plumbing/door/window location can change for sure.
If I gave bathroom 6x12 space, is tub in the shower the only choice?

It looks like there are no windows in either the bathroom or the bedroom, is this correct?

You might be able to put a tub at one end and a shower at the other end with a vanity across from the door. But I'd move the door to center entry into the room, OH I forgot about the toilet. you'll need 36" for that along the long wall.

I have posted nycbluedevil's bathroom post from 3 years ago. it might be helpful as hers is a 5' wide and long bathroom. though with the Kohler greek tub, she did use it as a shower too. The other pictures shown are of the other bathroom that has a shower.

Here is a link that might be useful: Here is nycbluedevil's post