For the majority of windows, measuring is straightforward;

 Measure the width of your window inside the recess, in three places: across the bottom, middle and top of the window. Then, do similarly for the height. Take the smallest measurement of each to give you the width and height for calculating the cost. Shutters are priced in square metres, so how many panels or hinged sections you choose should not affect the cost.

For measuring more awkward shapes and bays, the overall width and height is normally all that is required initially. Then, any angles or curves requiring templates or detailed drawings can be achieved via expert advice to obtain accurate measurements for a perfect, professional finish.