For one, there's a dizzying array of bathtub dimensions and shapes. There's also the bathtub material to consider—for example, acrylic vs. cast-iron or fiberglass vs. porcelain—all of which ...

extra at each wall and your measurement should be close to one of the standard tub sizes. Most are 5 ft. long and 30 in. wide and are designed to fit against the wall studs. Then, shop for tubs ...