UPGRADED GLASS: 5/16-in (8 mm) certified tempered glass shower door feels sturdy but moves smoothly KEEP THE SHINE: Water-repelling Spot Guard coating resists hard water stains, soap scum, and lime scale for a quicker clean and lasting shine SMOOTH GLIDE: Center track guide comes standard on all doors for smoother, quieter slide FIT: Requires opening width of 46-in minimum to 48-in maximum (116.8-121.9 cm) and 78-in (198.1 cm) threshold to top of door; Offers walk-in width of 17 to 19-in (43-48 cm), 72-in height threshold to the bottom of the top track ATTENTION: Studs required 1-1/2-in from front surface of sill for support, minimum threshold (sill) depth: 2-5/16-in (5.9 cm), minimum height clearance (sill to ceiling): 73-5/8-in (187 cm); design allows for out-of-plumb conditions up to 3/8-in CLEAR GLASS: Crystal-clear glass gives the most open and spacious feel STYLISH HANDLE: Vertical handles provide a streamlined look WHAT’S INCLUDED: All hardware and install instructions included BUY CONFIDENTLY: Proudly backed by a 5-year limited warranty TRACKS THAT LAST: Tracks crafted from anodized aluminum for strength and corrosion resistance