What are the space requirements for installing a walk-in bathtub at home?

Walk-in bathtub space requirements depend on the exact model and its door swing. Measure the existing bath area, bathroom doorway and delivery route, then check seat access and space for a helper or mobility aid. The installer should also assess the drain, hot-water supply, electrical needs and floor support. Some tubs fit a conventional alcove; others require modifications. Request a written fit assessment and installation price before ordering.