Measure Window Width:
Measure the inside of the window opening, not the glass. Measure window width in 3 places. Record the shortest measurement and round down to the 1/8 inch. Do not make any deductions, allowances or additions.

Measure Window Height:
Measure the inside of the window opening, not the glass. Measure window width in 3 places. Record the shortest measurement and round down to the nearest 1/8 inch. Do not make any deductions, allowances or additions.

Measure Window Diagonals:
Measure the inside of the window opening, not the glass. Measure window width in 3 places. Record the shortest measurement and round down to the 1/8 inch. Do not make any deductions, allowances or additions.

Measure Window Depth:
Measure from the front of any obstruction to the front edge of the window frame to determine depth. If window has less than 1 ¼” of depth clearance, an Outside Mount is recommended. Do not make any deductions, allowances or additions.

NOTE:
Depth clearance is the minimum window depth required for shutters to operate without interfering with window parts. Shutters can be mounted anywhere within a frame as necessary, as long as there is adequate window depth and flat surface area. Window obstructions include, but are not limited to: Window Cranks, Window Locks, Alarms and other items

Window Trim:
If your window has molding/trim, measure the flat surface of the molding/trim, from the inside edge to the outer edge, while not including any decorative or raised sections of the trim, commonly found along the outside edge.