.25 inch thick AquaGlideXP clear glass helps repels soap film, spotting and mineral deposits Overall unit is 57 inches tall and glass panels measure 29.25 inches wide and can account for some out-of-plumb and or out of level conditions The unit can be installed for left or right entry; Walk through area will vary in between 24.56- 27.06 inches wide The curb width is 1.56 inches wide and designed to repel water in the shower This door can be applied to any bathtub material; Shower bases and or walls not included