. 188 inch thick obscure glass is patterned glass that provides an opaque visibility Walk-through opening will vary between 28. 12- 29. 63 inches The bottom threshold width is 1. 81 inches wide and designed to repel water in the shower The unit can be installed for left or right entry and swings out only The pivot hinge allows for 3/8 inch adjustment for out-of-plumb wall conditions