Most standard sliding glass doors are five to six feet wide. That’s the total width of the entire frame, but the part that actually slides open is only about half of that. Think of it as a two-car garage where only one car is allowed to drive in at a time. The opening you can actually walk through is usually between 30 and 36 inches wide—basically the width of a standard interior door.
So, that "huge" patio door you love? The pass-through is roughly the same width as your hallway closet. You’ve been bamboozled by the magic of glass.
