Ensure Your Curtains are Perfectly Sized with This Easy Paper Test

Every home, regardless of size or ownership status, can be enhanced by the addition of curtains. They add a splash of color, introduce striking patterns, and provide necessary privacy. However, while selecting an appealing style may be enjoyable, determining the perfect curtain length can be a bit challenging.

So, how long should your curtains be? Are the ones you have currently at the right length? We consulted two interior designers to get their insights.

Interior designer Amy Switzer, known for her velvet curtain line with TWOPAGES, confirms that curtains should usually just “kiss” the floor—touching it lightly without pooling. “This creates a polished, tailored appearance,” she explains.

For a more dramatic look, Switzer suggests opting for a “puddle,” where the curtains are 1 to 4 inches longer, adding elegance. In modern or bustling spaces, slightly shorter curtains that barely graze the floor work well.

Your home setup should also guide your curtain choices. “If you have pets or children, curtains that just skim the floor or stop short of it are practical,” advises Switzer, as they minimize damage from tugging or chewing.

According to both Switzer and interior designer Shay Holland, although puddled drapery can look impressive, it’s a formal style that might not suit every home. Holland notes, “Most homes today aren’t formal enough for voluminous amounts of fabric gathered at the floor.”

To check if your curtains are too long, try the “paper test”—slip a sheet of paper under them. If it doesn’t fit, the curtains may be excessively long. Curtains should also be wide enough to open fully without blocking the window. Holland suggests purchasing extra panels if necessary, ensuring the full width covers 2 to 2.5 times the window’s width.

Be cautious about machine-washing certain materials, as they can shrink. “I had linen drapes shrink by 8 inches after a wash,” Holland remarks.

Correct rod placement can greatly enhance your curtains’ appearance. It should be installed at least 4 to 8 inches above the window frame, and any added height from rings or clips should be included in measurements, Switzer advises. If aiming for a modern look or to create the illusion of taller ceilings, position the rod even higher, near the ceiling. “This elevates the room’s visual height, especially effective if ceilings are under 12 to 14 feet,” suggests Holland.