ordering sliding glass door
I will be ordering a sliding glass door, but I have some questions. This will be replacing a picture window.
What is xo vs ox? I assume it is a left or right thing.
What is nailing fin vs flush fin? It is an option.
Our picture window goes almost all the way to the floor. I think there are maybe three inches from the window to the floor. When I measure, do I measure flush to the floor? Does the track sit a little above the floor or is it sunken and level with the floor?