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.
Short curtains are typically only used when long curtains are unrealistic (such as when a radiator, the bed headboard, or some other object would interfere with the curtains). In addition, long curtains provide a better aesthetic and can make the room appear bigger, especially when hung higher than the window frame.
If your curtain rod is too low, it'll shrink your window size and this is definitely something you do not want. Still unsure? A standard rule of thumb is about 4” up from the top of the window but you can definitely go up from there.
The answer to this question is important because it can affect the way we do our decorations. Yes, curtains should be long enough to touch the floor. With a few exceptions, the longer the curtains are the more stylish and elegant it will look. This is why most standard ready-made curtains are lengthy.
Sill Length
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.
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.
If you are interested in stationary panels, you will want your curtains to be long enough to lightly brush the floor, but not so long that they bunch up in a pile. A good rule of thumb is for your curtains to break anywhere from a ¼” to ½” from the floor, similar to a break in pant legs on your shoe.
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.
Your best move is to hang curtains within 8 inches of the top of the window frame. For very tall windows, which are popular in many modern homes, that means placing the rod as close to the ceiling as possible—in fact, you might want to install rods designed to actually hang from the ceiling.
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. When you hang the curtain rod high, it will make the window appear taller.
Do curtains typically drop after hanging? We've researched this to get the answer for you. Your curtains may drop right out of the box, but more than likely, they will flare at the bottom. You need to train the curtains for three days to two weeks after unboxing them, so they take on a more appealing shape.
While the curtains are still hanging, fold the bottom of the curtains under to the desired length. Use the stick pins to hold, to keep it folded and in place. Bring the curtain bottom up to the ironing board and iron a crease on the new fold. Cut off excess curtain a couple of inches past the fold and remove the pins.
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.
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.
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.
In Closing. For a 9-foot ceiling, 96-inch curtain panels are typically a good fit. This allows you to hang curtains that reach the floor, with the rod placed one foot from the ceiling. If you prefer curtains that pool on the floor or curtains that hang higher, just pick the next size up.
Valance. A valance is a short curtain and comes in many many shapes and styles. Valances can be used on their own to cover the tops of windows, doors or along with sheers and drapes.
With a few exceptions, your curtains should touch the floor. Although your final choice definitely depends on the particular style you'd like to achieve, floor-length curtains provide the most classy, modern look.
Curtain rods should extend at least 3 to 6 inches past the window frame. Just as hanging curtains above the window frame makes the window appear taller, Bob Vila writes that extending the curtain rod past the window frame makes the window appear wider.
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.
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.
Curtains absolutely can make a room look smaller or larger, depending on their design. Thick curtains and dark curtains are known for making a regular room look slightly smaller, while sheer curtains made of lightly-colored fabrics are ideal for helping to visually expand a room's size.