Vertical Blind Measuring Instructions
Inside Mount (For Outside Mount Click Here)

Inside (Recessed) Mount Vertical Blinds
Inside mount refers to blinds that are mounted inside the opening of a window that is recessed from a wall. This is the most common way to cover windows today and provides a nice, clean look. There is a minimum windowsill depth for vertical mounted inside and there is also minimum windowsill depth for the blind to fit flush with the wall(see chart below).
Product
Minimum Depth Req.
for Inside Mount
Depth Req. for
Flush Inside Mount
Vertical Blinds
2"
3"

IMPORTANT: You must use a steel measuring tape for accuracy. If you are replacing existing blinds your measurements must be from measuring the window opening NOT the existing blinds. The ordered height is the length of the finished product, including vanes and headrail.

INSIDE MOUNT

WIDTH: Measure the width of the window opening in 3 places (top, middle, and bottom). Take the smallest of the 3 measurements (rounded to the nearest 1/8 inch) and write it down. This is the width you will order. Do not make any deductions! The factory will make a small deduction from each side to provide space for operation.

HEIGHT: Measure the window opening height in 3 places (left, middle, right) and take the smallest measurement (again rounded to the nearest 1/8 inch). This is the height you will order. The factory will make a small deduction to the height measurement to provide space for operation.

Factory Adjustment
Inside mount headrail & slat width deduction: 1/4"
Inside mount valance deduction: 1/8"
Inside mount length (sweep) deduction: 1/2"

Mounting Brackets

Inside Mounting Bracket

Outside Mounting Bracket

Special Measuring Considerations
Measuring standard & french doors
Measuring sliding glass doors
Measuring corner windows

Measuring windows with cranks
Measuring for multiple blinds on 1 headrail
Measuring for multiple blinds with a common valance
Measuring windows with tile or wood obstructions

Product Stacking Chart

Outside(Wall) Mount Vertical Blinds
Outside mount blinds are mounted outside the window opening and attach either to a wood trim/frame around the window or to a wall. Outside mounts are ideal for windows with little or no window depth. There is a minimum amount of flat space required for outside mount blinds (see chart).
Product
Minimum Flat Space
Req. for Outside Mount
Mount Bracket Height
Vertical Blinds
1 1/2"
2"

IMPORTANT: You must use a steel measuring tape for accuracy. If you are replacing existing blinds your measurements must be from measuring the window opening NOT the existing blinds. The ordered height is the length of the finished product, including vanes and headrail.

OUTSIDE MOUNT

WIDTH: Measure the width of the window opening from left to right and if you have the space, add between 3"- 6" on each side for maximum light gap coverage and privacy. If the blind is to be mounted to trim or framing around the window measure from the trim's outside edge left to right . Once you determine the desired width (rounded to the nearest 1/8 inch) write it down. This is the width you will order. The factory will make no deductions or additions to your measurements on outside mount blinds.

HEIGHT: To determine the height, measure the window opening from top to bottom and add between 3"-6" to this measurement to allow space for mounting brackets above the opening and enough overlap at the bottom to avoid a light gap. You must add at least enough space to mount the brackets above the window which are 2" tall on vertical blinds. Once you determine the desired height (rounded to the nearest 1/8 inch) write it down. This is the height you will order. The factory will make no deductions or additions to your measurement. For ceiling-to-floor installations, make adequate allowance for carpeting. If there is trim or framing around the window measure from the trim's outside edge top to bottom and this is the height you will order, provided the trim provides the flat space required for an outside mount (see chart). If not, you can mount the blind to the wall above the trim. In addition, if the window sill protrudes outside the window opening at the bottom of the window, measure just to the top of the sill.

Factory Adjustment
Outside mount valance addition:
All products: 1 1/2"