1 measure the width inside the window opening at the top middle and bottom.
How to measure window for inside mount blinds.
Take the narrowest of the three width measurements and round down to the nearest 1 8.
For an inside mount blind you must determine if there s enough room to install a blind and its heading in the window opening.
2 measure the height inside the window opening from the top of the window opening to the window sill three times.
Measuring for outside mount window coverings is a bit easier.
Measuring for inside mount blinds inside mounted blinds are mounted inside the window frame for a neater look.
Always measure to the nearest 1 8 inch.
When measuring to fit any of these blinds or shades to your windows it is important to remember a few key things.
This is the most popular method if the window depth allows it.
Measure the depth of your window frame.
Decide if you want an inside mount or an outside mount before you begin the measuring process.
If you re interested in measuring for inside mount blinds follow these steps.
Steel measuring tape is much more accurate than cloth measuring tape.
Measure the width of the window opening in 3 places at the top in the middle and along the bottom edge or sill.
Inside mount window treatments are installed inside the window frame or casing they provide a sleek clean look which can showcase your window size and moldings.
Measure once on the left at the center and on the right and take the longest of the three measurements.
Consider adding 3 inches to your width measurement which will allow your blinds to extend past the window a bit farther and block more light.