When honeycomb shades are all the way up, the distance from the top of the headrail to the bottom of the shade stack height will vary from 2 1/2 inches (64 mm) to 5 5/8 inches (143 mm) depending on the fabric choice and size of your shade
When roller shades are up all the way, 4.5 inches (114 mm) of fascia/headrail will cover the window.
For wood blinds, the stack height will vary from 4 inches to 9 inches depending on the height of the blind.