Fabulous solution when space is too tight for a standard hinged door. You can also put furniture on the walls next to this opening, just leaving enough space behind the furniture for the doors to slide.
These instructions for how to caulk a bathtub are super easy to follow and will give you a perfectly straight and tidy caulk line, just like the pros. If you need to know how to caulk a bathtub, READ this first! This blogger tells you what you SHOULD and SHOULD NOT do!