I built a barn door for a bathroom.  I am hanging it this weekend.  Have you ever added a interior lock for a bathroom?  If so, can you offer a recommendation on the type of lock?  Advantages/disadvantages.
My biggest problem was carrying it up from the basement (18 steps) by myself. 
Header is installed and door is upstairs.  I have to add the hardware to the header and mount.  But since it is for a bathroom a latching mechanism is suggested.
Thanks,
Packard