If you do a lot of remodeling work, sooner or later you'll be asked to rework a shower to make it more accessible for someone who uses a wheelchair. If you shop around for one of the prefab accessible units, you'll notice two things: One is, they don't come cheap, especially the nicer acrylic ones. And second, these units take up space you may not have in the bathroom, not without knocking down walls and stealing from an adjoining room. The problem with a small bathroom is that a wheelchair needs a comfortable turning radius — usually 5 feet is specified — and the sidewalls of a shower unit get in the way unless it can