Measuring for shades is simple. Just decide if you want an inside or outside mount. Wherever you will be installing the brackets, measure the width between each bracket and this will give you your “finished width”.

From there, decide how long you want each shade to be and that will be your “finished length”.

TIPS:

For an outside mount, consider adding 2” on each side to your finished width. This will help eliminate light seepage and make your windows appear slightly wider.