Now, this type treatment can be used as a valance or a swag.
If you want a valance then your side panels will be the same
or close to the length of your longest point. If you want
a swag, then these side panels will be 2/3rds of the window
length or longer. The Prairie swag will fit any window that
is 36” wide or larger.
First, you must determine the finished width of your treatment.
This is the width of the
window treatment, including any outside allowances. This width
is not the same as your rod width, but would be the bracket
to bracket measure.
If your window is 36” wide and you’d like the
swag to hang 2” out on either side of the window then
you’d add 36” + 2” + 2” = 40”
and this is your finished width or FW and could also be used
as a bracket to bracket measure.
The size of the width will determine how many tabs you will
need. This will always be an odd number and there will always
be one less scoop than the number of tabs. For instance for
a 36” window you would have 3 tabs and 2 scoops. To
determine how many tabs you will need, in most cases you can
divide the FW by 12”. Round up or down to the nearest
odd number. So, for our imaginary window that is 40”
FW, divide it by 12” and you get 3.3 but to round up
would be 4 tabs and that won’t work, instead you will
round down to 3 tabs. You will always have 1 less scoop than
you have tabs. So we will have 2 scoops.
The drop for each scoop is an individual decision. It might
depend on how much room you have above the window, because
you don’t want the window to show inside the scoops.
Each tab gives you 3” of length. You should figure that
in when you determine the drop length of your scoops.
Next you should determine how long you want the valance to
hang into the window. This is your swag or valance length.
The Prairie Swag actually has two lengths. Every other tab
is tucked up to create the bell shape. So, starting on the
outside tabs, you will have a long length. And every other
tab will be a tuck length, usually around 6” shorter.
This will depend on how much room you have above the window
for the rod and scoops to hang. In our imaginary window, we
will have 24” at the longest point and 18” at
the shortest. We will hang the rod 14” above the window,
which will allow us to have a 3” rod, a 9” scoop
and have a 2” space before we see the window. Also,
for this small window, we will reverse the formula and the
outside scoops will actually be the tucked ones. If we had
5 tabs, the outside tabs would not be tucked
FORMULA: You will need:
Window width______+ ______ (left and right allowance) = FW______
Valance longest length_____ and valance shortest length_______
Side panel length_______
_______FW divided by 12” and round up or down to nearest
odd #. = _______#tabs
_______# tabs – 1 = ______ #scoops.
_______# scoops x 24 = ______+ ______ (side panel length x
2) = ______Cut width.
_______Cut width x _______ (valance longest length) = _______Square
Square feet x $55 unlined = _______ + (_____ tabs x $15each)
*This price doesn’t include any other types of decoration.
The width of each scoop is larger than the amount of space
on the rod between each tab. For a 12” drop, your scoop
width would be approximately twice that size. The jabots,
which are the side panels, will average up to 30" in
length with one skin and 60" with two and so forth. All
finished measurements will vary slightly due to the difference
in each individual skin.