Measuring for Divider Rails

By Coverly Shutters

Measuring For Divider Rails

Divider rails serve as a support to prevent louvers from sagging. 1 divider rail is required on shutters over 60” tall. 2 dividers are required on shutters over 96” tall.

For those measuring a window with multiple window panes, we recommend designing your shutters with a Divider Rail to match the design of your window. You can choose to design your shutters with a divider rail and if your shutter is over 96” tall you are required to have 2 divider rails.

Measuring The Position Of Your Divider Rail for an Inside Mount

Measure from the bottom of the window to the middle of the point you decide upon.

For an inside mount with no sill, measure from the bottom of the recess.
For an inside mount with a sill, measure from the top of the sill.

inside mount divider rail measurement

Measuring The Position Of Your Divider Rail for an Outside Mount

For an outside mount with molding, measure from the edge of the molding
For an outside mount with a sill, measure from the top of the sill

If measuring for a second divider rail, follow the instruction above to the point of the second divider rail.

Divider rail positions may be altered by 2”+/- to ensure that we can fit all louvers evenly in your shutter.