How to Choose the Right Curtain Length for Your Specific Windows

The length of your curtains can make or break a room. Selecting curtains that are too long can make the space look cramped, while those that are too short may feel awkward or unfinished. On the other hand, curtains that perfectly fit your space will improve the overall aesthetic. But how do you achieve this? It all starts with correctly measuring your curtain length, which may vary based on a few factors, including where you want the curtains to break, how high your curtain rod is, and the size of your windows.

Standard Curtain Lengths

Most curtain panels come in standard lengths, typically 63 inches, 84 inches, 95 inches, and 108 inches. "However, custom lengths are also available to accommodate various window sizes and design preferences," says Kerrie Kelly, CEO and creative director of Kerrie Kelly Studio.

If standard sizes don't align perfectly with your measurements, round to whichever length is closest. "When in doubt, err on the side of longer rather than awkwardly short," says Kati Curtis, founder of Kati Curtis Design. That rule stands even if your curtains land behind a piece of furniture. "I never try to fake it," says Curtis.

How to Measure Your Windows for Curtains

Making sure your curtains look great in your space starts by measuring them correctly.

Determine Rod Width

To determine rod width, measure the width of the window opening and add about 4 to 6 extra inches on either side for coverage and visual balance. "For an outside mount, the curtain rod should extend several inches beyond the window frame to accommodate the curtains and provide a wider appearance," says Kelly.

Determine Rod Height

Next, determine how high you want to hang the curtain rod. "For a standard look, mount the curtain rod approximately 4 to 6 inches above the window frame," says Kelly. "This allows ample space for the curtains to hang elegantly and creates an illusion of height in the room."

Measure Curtain Width

To calculate curtain width, start by measuring the width of the window. Then multiply that number by 1.5 to 3 times, depending on the desired fullness and pleating style, says Kelly. "This ensures that when the curtains are drawn, they provide ample coverage and a visually appealing appearance," she says. This will also account for the rod extending past the width of the window.

Decide on a Curtain Break

Before measuring the length of your curtains, you have to decide where you want them to break.

• Apron: Curtains that break at the windowsill (often used in kitchens)
• Hover: Curtains that hang just above the floor.
• Kiss: Curtains that barely touch the floor.
• Puddle: Curtains that gather on the floor.
  

Measure Curtain Length

To measure curtain length, measure from above the window frame where the rod will sit to your desired length. "Consider whether you want the curtains to hang just below the windowsill, to the floor, or with a puddle effect," says Kelly.

Consider Custom Curtains

Custom curtains ensure you get the exact right length, even if your floor isn't level. Curtis recommends always working with a designer to make sure the scale and pattern work with everything else in the room, "Window treatments can be a tremendous investment for your home and not something you want to make a mistake on," she says. Alternatively, you can ask a tailor to hem pre-made curtains according to your measurements as a budget-friendly way to get a custom look.