The Finesse™ Peak™ frameless doors offer minimal metal framing around the glass to showcase the bathing enclosure along with heavy 5/16 in glass for strength and stability. Sterling® Sliding Shower Door, Finesse™ Peak™, 44-5/8 to 47-5/8 in Opening Width, 66-3/16 in Opening Height, Frameless, Tempered Glass Type, 5/16 in Glass Thickness, 70-1/16 in Overall Height, 47-5/8 in Overall Width, 17-3/4 to 20-3/4 in Walk Through Size, Vertical, Aluminum, Nickel with Smooth/Clear Glass Texture