Inside Mount
Inside Mounted shutters are mounted inside the window casing and do not cover the
window molding. Window must be “square” for an inside mount installation.
To determine squareness, measure diagonally (upper to lower left, then upper right to
lower left), if the measurements differ by more than 1/2”, your window is not square
enough for an inside mount. Inside mounted shutters are mounted inside the window frame recess.
How to measure inside mount: