So, how tall is a standard sliding glass door? The honest answer: anywhere from 80 inches to 96 inches tall, with 80 inches being the common default. But always measure your rough opening (the hole in the wall) before you get dollar signs in your eyes.
Remember: a door that’s too short makes you feel like a giant; a door that’s too tall makes you feel like a dwarf with expensive taste. Choose wisely, measure obsessively, and for the love of all that is glass, don’t forget the screen.
Now go forth, measure that doorway, and impress your friends with your newfound door-height expertise. You’re welcome.