revamp bathroom for handicap access
Replace bathtub with a handicap walk-in shower?
Some Suggestions
There are several alternatives - you can replace an existing bathtub with a walk-in shower - I would suggest this as the best option for long term use... but to achieve this, you will most likely either lose floor space, or have to add space to the bathroom by knocking out a wall.
We have some information on the site about a disabled bathroom shower that may give you a little more help.
