For a 60 inch (152.4cm) window, you need curtains with a finished width at least 1.5 times that, but better are those with twice that width and even three times the width for sheers. Therefore, for a 60 inch window, you need two panels of 60 inches each for twice the width and a luxurious gather.
For example, for a 60-inch window with two curtain panels, add 24 inches to 60 inches (window width) and divide by 2 (number of panels) to get 42 inches. The two panels ordered each need to be at least 42 inches wide.
How wide should curtains be? To ensure that curtain panels look ample when closed, they should have a combined width that is 2 to 2.5 times the width of the window/rod. That means if you are ordering Grommet style or Rod-pocket style, the total drapery width should be at least 2 times the window/rod widths.
Measure the width of the rod from left to right. A common rule for displaying curtains properly says the curtains finished width should be at least 2 times the width of your window (if not more - sheers can be 3 times the window width) to achieve a look of proper fullness.
Keep in mind that the width measurement is flat. If you hang a 48-inch panel on a 48-inch window, there will be no fullness or draping. According to Curtainshop.com, finished curtains should be twice the width of the window, so if your window is 36 inches wide, you need panels that are at least 72 inches across.
To get the measurements, measure the width of the rod from left to right. For instance, if your window measures 72” wide, you will need curtains that will give a maximum width of 144” (window width x 2 = 144”.)
While fashion once dictated a “flood level” bottom line for curtains—one that hung just past the window sill, short enough that it would not get wet in a flood—today, style calls for curtains to either hang down to within ½-inch of the floor or even puddle slightly.
Buying Standard Length Curtains
Standard curtains come in three lengths—84 inches, 96 inches, or 108 inches. "Generally, you want to stay away from the 84 inch standard curtains unless you have very low ceilings.
As a general rule, drapes will be open during the day, so make sure the curtain rod extends at least four inches on each side of the window's inside frame. To create the illusion of a wider window, extend the rod up to 10 inches beyond the window's frame.
For a 120-inch window, how wide should curtains be? Depending on the weight of the fabric and how much you want the curtains to be. At least a width and a half is what I would recommend. 180 inches is the width of each curtain.
Determine the number of panels you need to order: ~ Multiply window width by 1.5 to 2 if you want curtains loosely gathered for a relaxed, tailored look. Divide your total by the width of a single curtain panel to get the number of panels you need.
Double gather is the recommended standard, which means you buy a piece of net curtain twice as wide as your window. The excess fabric bunches up on the rod or wire, giving a generous, softer, gathered look.
When you buy them in stores or online, there are two standard lengths: 84 inches and 95 or 96 inches. The length of the curtain dictates the height of the rod. If you buy 84-inch-long curtains, the rod must be mounted roughly 84 inches from the floor if the curtains hang from the rod without rings.
As a general rule of thumb, curtain width should be two to two-and-a-half times the width of the window. Curtains are typically sold as pairs, but you may need to double up depending on the size of your window.
The overlap, which is 2" for each panel, ensures privacy and light control. One-way panels do not overlap. The PLEAT-TO is the finished width of a drapery, or the total width a drapery is “pleated to” including its returns and overlaps.
Measure the exact size of the area you would like the Wave curtains to overlap. To minimize light leakage we recommend that you overlap the window recess by at least 150mm at the top and 150mm each side.
All our ready made curtains are sold as pairs, and the sizes stated refer to the size of each curtain. For example, in a pair of curtains 46" wide x 54" length, there will be two curtains, each measuring 46" wide.
The rule of thumb is to go 8″-12″ wider than your window.
If you hang short curtains, aim to hit a perpendicular mark on the wall. For instance, the curtain lengths should meet at the top of the baseboard, or the bottom of the windowsill.
How Wide Should Curtains Be For A 72-Inch Window? Let's say you want standard, thick curtains to cover your 72-inch window. You'll want to look for curtains that measure between 144 and 180 inches wide.
Most people hanging nets close to their windows will want the nets to finish just above the window sill. This will allow the nets to hang properly and will help to keep them clean. You should measure the length of the window and subtract an inch or two off the drop measurement (2 inches = 5cm).
A simple method of measuring stretched mesh size is as follows: extend a panel of twine fully in Diamond shape direction and measure the distance between the centre of 2 knots separated by 10 meshes. Then divide this measure by 10.
Curtain panels that are sold in individual packs are more affordable for the bottom line because people can buy the exact number of panels they need to decorate their windows. There are no extra costs to eat because you pay for what you need and that's that.