My Mom has to use a wheelchair now, and our old door into the bathroom is too narrow for the wheelchair (it’s 28″ wide). I saw a 30” door that would work, but I don’t know how to make the frame wider to fit the door? -Sasha
The best solution would be to remove the existing door along with the door frame around it, and replace it with a new 30” interior door unit that is prehung on the frame.
Depending on the size of the gap between the wall studs and the old door casing, you may have to enlarge the opening by removing one of the studs and reframing the opening. If you do, be sure to provide temporary support for the stud if it’s a load bearing wall.
Also, if the walls of your bathroom are tiled, be careful when removing the old door frame so you don’t break or dislodge the tile. Then the door casing will need to be trimmed back an inch on each side to fit around the tile.
Good luck with your project,