How To Measure A Box Bay Window For Blinds. There’s a distance on this example of vertical blinds of 4 inches or 10 cm. For box bay windows, one blind will run the full width and the two other blinds will run from one side of the architrave to butt up against the full width blind.
There’s a distance on this example of vertical blinds of 4 inches or 10 cm. Angled bay window or square box bay window, the online blind company are here to help you get the perfect measurement and fit for your new blinds. Measure each side from the last mark you made with the templates to the start of the wall.
Now do this for the other angle of the window, too.
Use a steel tape measure to measure each window section's width in three places (at the top, middle and bottom). Angled bay window or square box bay window, the online blind company are here to help you get the perfect measurement and fit for your new blinds. If you have a bay window that has 3 (or more) separate windows with large sections of drywall between, here’s how you measure: Measure each side from the last mark you made with the templates to the start of the wall.