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.
Yes. Using curtains that are longer than your windows will help your short window appear larger. The length of your curtain is dependent on the ratio of width to height. A window that is longer in length than width can benefit from longer curtains giving the window a larger feel.
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. When you hang the curtain rod high, it will make the window appear taller.
But for curtains, it's all about measuring properly. "Typically, 10 is your magic number, with 10 inches above the trim and 10 inches wider than your window on each side being the best fit," says Curtis.
Sill Length
1/2" above the window sill. Casual and charming. These are the shortest of the standard curtain lengths, which makes them a good opportunity to have some fun with pattern or color. Since they take up less visual space, you won't get tired of a bold choice.
For curtains that are way too long, you may have a lot of excess fabric left. You can trim this extra material at the end, but if you don't want to cut the curtains, make 2 or 3 folds so the excess material is tucked in neatly.
In this case if you hang a curtain too high it could look a little off, especially if there is a lot of bright light coming through showing where the actual window is. In that case you should hang them about 8 inches or less above the window frame.
Standard curtains typically hang from about a half-inch from the floor to halfway between the window trim and average-height ceiling. But to maximize visual height, let the walls determine your curtain's length; in a living room, library, den or bedroom, the longer the panels, the better.
This also means that there is no limitation, other than any physical reason or obstruction, on what height you can fit your curtain pole at. The norm is usually about 15 to 20cms (6" – 8") above the window where space allows.
You should aim for your curtain hem to be about 3/8" to 1/2" above the floor. Not only is this an easier length to measure for, but it also makes it simple to vacuum and sweep. It's a great option if you plan to open and close your curtains a lot since you won't need to rearrange them each time.
Hanging long drapes on a short window is one of the easiest ways to increase the importance of the window and bring it into proportion to the room. Short drapes on a short window call attention to the size of the window and reduce the significance of the room, window and drapery style.
The material should barely touch the floor or hover half an inch above. Use this approach for café curtains, too, short panels covering only the lower portion of a window, hitting the sill, which works well in kitchens and bathrooms, where long drapes or curtains aren't practical.
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.
Wall-mounted rods are usually installed four inches above the window. To find your ideal placement, measure down from the ceiling to the top of the trim at the left corner of your window; mark the midway point.
When hanging curtains, it is important that the curtains are the right length. Curtains that are too short make the room look short, stubby and awkward. The cut the length of the wall, making both the window and the room look smaller. An example of curtains that are way too short!
So should curtains touch the floor? The short answer is yes... usually. But when making any decision about your window treatments, whether they're drapes, blinds, or shades, it's important to consider every aspect of style and function so you can choose the best option for your windows and your home.
Just Hitting the Floor or Sill
The fabric should just touch the floor or hover 1/2 inch above. This is also a great approach for café curtains (short panels that cover only the lower portion of a window and hit the sill), which work well in spots like the kitchen and bathroom, where long drapes aren't practical.
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.
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.
The higher the curtain rod, the taller the window will appear, so fix your curtain rod closer to the ceiling than the top of your window, if you can. One rule of thumb is that they should sit 4-6 inches above the window frame.
Making Your Room Look Larger or Smaller with Curtains
High-hanging curtains with long vertical stripes create the illusion of height, which is excellent for low ceilings. However, short curtains and horizontal stripes shorten your wall height and make the room appear smaller.
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”.)
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.