
Measuring Horizontal Blinds
Things
to Remember:
- Use a steel
tape for accuracy.
- Measure the
exact width of the window at 3 different places.
Use the narrowest measurement and write it down.
- Measure the
exact length from top of window opening to bottom sill. Use
the shortest measurement and write it down
- Make all measurements
to the nearest 1/8 inch.
- NOTE: All
measurements should come from measuring the window. If you measure
your existing blinds, the measurements will be incorrect.
- Do not take
your own deductions. The factory will take necessary deductions
and allowances.
- Double check
all measurements.
- Blinds may
be mounted inside or outside the window casing. See below for
specific instructions.
- Vertical
Blinds require special measuring considerations which are
outlined below.
Inside Mount
(see diagram below)
The window covering
will hang inside the window frame. We recommend an inside mount
whenever possible for a neater look. When you order, enter
the exact dimensions of your window without making any allowances.
The factory will take all necessary deductions for inside mounts.
- Width:
Width: Measure the EXACT distance across the window from
the inside edge of the frame to the opposite inside edge in
three places. Use the narrowest
dimension.
- Height:
Measure the EXACT distance from the top inside edge of the
frame to the bottom inside edge of the frame in three
places. Use the longest dimension
for horizontal coverings, and the shortest for vertical coverings.
- Window
Depth: The amount of space from the back of the window
or obstruction to the windows outer edge (see below).
- See the
Sill Depth Chart below for the minimum sill depth needed
for installation and the minimum needed for the product to be
flush with the front.

Flush Mount
- 1.50"
for 1" and 1/2" Mini Blinds, 3/8" Honeycomb Shades
and Pleated Shades
- 2.25"
for 1" Wood Blinds and 3/4" Honeycomb Shades
- 3.00"
for 2" Aluminum Blinds and 2" Wood blinds
- 4.75"
for Vertical Blinds
Outside Mount
(see diagram below)
The window covering
will hang outside the actual window frame, over lapping the window
frame for maximum privacy and light blockage. Please note that
blinds require a flat surface for mounting. If you have a casement
around your window, you may mount the headrail directly on the
casement, but not on the wall outside of it. In order to make
the width of the blind extend beyond the width of the casement,
it is necessary to mount the headrail above the casement.
- Width:
Measure the desired width. To minimize light leakage the
shade should overlap the window opening by at least 2"
on each side and at the bottom.
- Height:
Measure the distance from the top outside edge
of the window frame the bottom outside edge of the frame. If
there is not a window frame add at least 2" inches on the
top and the bottom to minimize light leakage. The headrail
on a wood or faux wood 2" blind is about 2 1/2" high.
- Leave room
for the mounting brackets, which are about 2-1/2" tall
- For Vertical
Blinds see our Vertical instructions

If you have a
measuring situation that was not covered here, it is most likely
covered in the section called special measuring
situations. In that section we cover French and sliding doors,
curved windows and many other topics.
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