For an 8-foot ceiling, your curtain panels should probably be about 91 inches long. If you don't want to get custom window panels, you can buy 96-inch ones and hem them so they are floor to (almost) ceiling.
Assuming you're outfitting a living room or bedroom with average ceiling height (8 feet high), an interior designer's rule of thumb would be to mount the curtain rod about a half-foot above the top of the window frame—even higher if the total space between the top of the window and the ceiling line is less than 12 ...
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. They don't look right in most scenarios and end up being an awkward length," says Curtis.
No matter what the ceiling height, the minimum distance from the top of the window casing to the curtain rod is two inches. To create the illusion of height, mount the drapery rods close to the ceiling. This is particularly important to do if the room has low ceilings. Use these same rules when the windows are arched.
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.
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.
The actual amount of gather depends on heading styles and personal preference, but as a general rule the width of your curtains should amount to double the width of your track. This is referred to as 'two times gather'.
For a 9 foot ceiling, pick 96-inch curtains. Typically, your curtain rod is hung about a foot from the ceiling. 96 inches covers the distance between the floor up to one foot from the ceiling.
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.
"Extending your draperies from floor to ceiling and from wall to wall surrounding your window makes them appear bigger," explains Francesco Bilotto.
Yes, They should! The length of the curtain determines the height of the curtain rod. Therefore, even if you buy curtains that are 84 inches long, if the curtains hang from the rod without rings, the rod must be approximately 84 inches from the floor to enable the curtain to touch the floor and avoid the awkward look.
The sizes are listed width by width. The curtain panel is 54 inches wide by 84 inches long. Before choosing curtains, it is advisable to install a curtain rod.
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”.)
The top of most of our windows are 8ft, and we used 108″ panels almost everywhere. So we hung our curtain rod about 13 inches above the windows. The higher the curtain rod, the taller your window will appear. I recommend to always install a rod closer to the ceiling than the top of the window.
How High to Hang Curtains. A rule of thumb (from Architectural Digest) is that curtains should be hung between four to six inches above the window frame, so install your curtain rod accordingly.
Unless you are using cafe-style curtains, the fabric should fall to the floor. These are the highwater pants of curtains and not a good look.
If you have the space between the top of your window frame and the ceiling or crown molding, though, you should hang the rod over the window. I like to go 3 to 5 inches down from the ceiling. Doing this visually extends the length of your wall, making your ceiling look higher.
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.
Example: If your window measures 36″ wide (window width x 2 = 72″), you need curtains that will give a minimum width of 72″ or 2 panels for that window. In this case 2 panels will give about 100″ to 120″ of width which will look nice and full.
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 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.
The standard curtain width is always 2, 2.5, or 3 times the width of the window. So the formulas used to calculate the width of your curtain is: Standard curtain width = width of window × 2. Deluxe curtain width = width of window × 2.5.
This will ultimately depend on the length of your window, but as a general rule, curtains will hang to the following points on most windows: 63 inches: To the windowsill. 84 inches: To the floor.
If the top of the window is 84" from the floor, a 63" curtain will hang 21" from the floor. On many windows in modern houses with a 30-33" sill height this will put the curtain length at some point on the wall below the window.
Curtain measurements are always written with the width first and then the length. For example, a panel that is 46″ x 54″ is 46 inches wide and 54 inches long. Don't buy your curtains just so they're big enough to cover a window.