Measure the inside window frame depth. A minimum depth of 2 inches is required for an Inside Mount installation.

Measure the window width at three points, then enter the smallest measurement as your order width.

(If your smallest measurement ends in 1/16" or 1/32", round it down to the nearest 1/8". For example, if the smallest measurement is 24 9/16", round it down to 24 1/2". If the measurement is exactly 24 3/8", use it as is.)

Measure the window height in three places—from the top left, center, and top right of the window frame down to the window sill. Record the largest of the three measurements, rounded to the nearest 1/8".

(If your largest measurement ends in 1/16" or 1/32", round it up to the nearest 1/8". For example, if the largest measurement is 24 9/16", round it up to 24 5/8". If the measurement is exactly 24 1/2", use it as is.)

We automatically make all necessary manufacturing deductions based on the measurements you provide when placing your order. Please enter your exact window measurements. Do not make any deductions or add extra width yourself.

Measure the window width at three points from the outermost edges of the window frame or trim. Use the widest measurement as your window width.

Order Width = Window Width + 2 to 4 inches

Adding 2 to 4 inches helps ensure proper window coverage.

Example: Window Width = 34"; Order Width = 36" to 38".

Measure the window height in three places and use the longest measurement as your window height.

Order Height = Window Height + 2 to 4 inches

Adding 2 to 4 inches helps ensure proper window coverage.

Example: Window Height = 60"; Order Height = 62" to 64".