Typically, interior shutters are measured and mounted
within the window opening. This is called inside
mounting or direct mounting. This is done when
the window jamb is wood and square. For this type of
mounting you would measure inside the window opening
for the width and the same for the height.
Measure in three places & diagonally to make sure
that the opening is square. If there is a variance in
measurements of 1/4” or more, you will have to
go to Outside mount or Inside mount with a frame. For
alternative 3) use the largest measurement and taper
the frame to fit. This is also used when the window
jamb is drywall.
If the opening is not square the following can be done:
- Go to the outside mounting.
- Use inside frame and taper to fit inside the opening
and use the smallest opening size for shutter size.
- Order shutters to fit largest size of opening and
trim shutters to fit.
For type 1. & 3. mounting this depth is needed
to allow louvers to turn and install magnetic catches.
California Shutters have 2.5”
louvers and need 2.0” clearance.
Plantation Shutters have 3.5”
louvers and need 2.5” clearance.
If you do not have this depth, you will have to go
to outside mount.
When there is not enough clearance (depth) for the
shutters or you want to cover the whole opening, casing
and all, you would use outside mounting.
For outside mounting you would measure
to the outer edges of the casing/trim for the width
(in three places) and from top of casing/trim to the
sill or bottom of casing for height (in three places).
Add ¼” to width and height.
Outside mounted shutters will need a separate wood
frame from which to hang the shutters. You have to mount
this frame properly into the wall stud in order to support
the weight of the shutter. |