Recognizing
that not all windows are created equal, it is best to
measure the top of the window from left to right and the
bottom of the window from left to right because accurate
measurements are essential to the order process. When
measuring window height, take one measurement on the left
side, from top to bottom, and a second measurement on
the right, also from top to bottom. If there is a variation
in these two measurements, either width or height, use
the smaller of the two dimensions in that pair.
Now that we have that out of the way,
measure the width of the inside edge of the window's casement,
as if the shutters would actually be closed. This measurement
is called the pair width, or twice the measurement of
one shutter.
Next, measure on the top left corner
of the casement down to the bottom left corner. Repeat
the process on the right side. These dimensions are commonly
referred to as shutter height.
If you are replacing radius top shutters,
the "high point" of a radius shutter is the
measurement taken from the base of the shutter to the
apex of the radius.
The "low point" of a radius
shutter is the distance from the base of the shutter to
the lowest point on the radius, or the start of the radius'
curve.
If you're ordering a circle top shutter,
follow directions for radius top shutters, unless you
know for sure that the top of your window is a perfect
circle. If it is, each shutter will be exactly one quarter
of a circle. In this case, we simply need the pair width
as that will automatically give us the circle's radius.