How to Measure Curtain Length
- Staff Desk
- 3 days ago
- 6 min read

Curtains come in various lengths, and the size you choose will depend on the style you want to achieve. Understanding the different lengths available is essential for creating the desired look and functionality in any room. Here are some common curtain lengths you should be familiar with:
Sill Length
Sill length curtains usually fall about half an inch above the window sill. They are ideal for kitchen or bathroom windows where longer curtains might be impractical. This style provides a neat and tidy appearance, making it easy to maintain and clean. It's perfect for spaces where you need to balance privacy with functionality, such as in a bathroom where moisture and steam are considerations.
Sill length curtains are also a popular choice for children's rooms. Their shorter length means they are less likely to become a hazard or get dirty quickly. When choosing sill length curtains, consider the fabric type and pattern to enhance the room's theme without overwhelming the space.
Apron Length
Apron length curtains extend a few inches below the window sill. They are a good choice for casual settings and can make windows appear taller. This style offers a relaxed, yet tailored look that can complement both modern and traditional interiors. Apron length curtains are versatile, making them suitable for living rooms, dining rooms, and bedrooms.
Choosing apron length curtains allows you to highlight the window frame while providing enough coverage for privacy. They are particularly effective in rooms with high ceilings, as they can draw the eye upwards, enhancing the perception of height. Consider using light, airy fabrics for a breezy, open feel.
Floor Length
Floor length curtains typically hover about half an inch above the floor. These are popular for living rooms and bedrooms, providing a polished and formal look. This length creates an elegant line from top to bottom, adding a sense of height and grandeur to the room. Floor length curtains can be used to frame large windows, making them a focal point in the décor.
In addition to aesthetics, floor length curtains offer practical benefits, such as insulating the room and blocking out light when needed. They are also ideal for spaces where you want to create a cozy, intimate atmosphere. When selecting floor length curtains, consider the room's color scheme and furniture style to ensure a harmonious look.
Puddle Length
Puddle length curtains extend onto the floor, creating a puddled effect. This style is often used for a dramatic and luxurious look but requires more maintenance. The extra fabric that pools on the floor adds a touch of opulence and can be particularly striking in formal settings like dining rooms or master bedrooms.
While visually stunning, puddle length curtains can be challenging to keep clean, especially in high-traffic areas. They are best suited for rooms where they won't be disturbed frequently. When opting for puddle length curtains, select fabrics that drape well, such as silk or velvet, for the most effective look.
Tools You'll Need

Before starting, gather the necessary tools to ensure accurate measurements. Having the right equipment will make the process smoother and help you achieve precise results.
Measuring Tape
A good quality measuring tape is essential for getting accurate measurements. Opt for a sturdy, flexible tape that can easily reach high places and wrap around corners. This tool will be your best friend throughout the measuring process, ensuring you capture every inch accurately.
Pencil and Paper
Use a pencil and paper to jot down your measurements as you go. Writing down each measurement ensures you don't forget or confuse numbers, especially if you're measuring multiple windows. Keep your notes organized, and consider drawing a simple diagram to visualize how the curtains will hang.
Step Ladder
A step ladder is necessary if you need to reach higher areas or hang the curtain rod above the window frame. Ensure the ladder is stable and secure to prevent accidents. Safety is paramount, so take your time and avoid overreaching when measuring.
Step-by-Step Guide on How to Measure Curtain Length

Measuring for curtains involves several steps, each crucial for achieving the perfect fit. Follow this step-by-step guide to ensure you measure accurately and select the right curtain length for your space.
Step 1: Decide on the Curtain Style
The first step in measuring for curtains is deciding on the style and length you want. Consider the room's function, the look you want to achieve, and any practical considerations, such as pets or children that might affect the curtain's length. Think about how the curtains will interact with existing décor and furniture.
Evaluate the room's lighting needs and privacy requirements. For instance, sheer curtains might work well in a living room that requires natural light, while blackout curtains could be more suitable for a bedroom. Once you've settled on a style, you'll be better equipped to take precise measurements.
Step 2: Measure the Window
Start by measuring the height of the window from the top edge of the window frame to where you want the curtains to end. Use a measuring tape and note down the measurement. If you plan to hang the curtains higher than the window frame, measure from that point instead.
Consider whether you want the curtains to cover the entire window or if you prefer them to reveal some of the window frame. This decision will influence where you begin your measurement and affect the overall look. Always ensure that the tape measure is straight and level to avoid errors.
Step 3: Measure from the Curtain Rod
If your curtain rod is already installed, measure from the bottom of the curtain rod to the desired endpoint. This will give you the length of the curtain panel needed. Be sure to measure from the exact point where the curtain will hang to ensure accuracy.
If you're installing a new rod, decide on its position before taking this measurement. The height of the rod can dramatically affect the curtain's appearance, with higher placements giving the illusion of taller windows. Double-check your measurements to avoid purchasing the wrong curtain length.
Step 4: Add Extra Inches for Specific Styles
Depending on the style you've chosen, you may need to add extra inches to your measurement. For puddle length curtains, add several inches for the fabric to pool on the floor. For floor length curtains, adding an inch ensures they just touch the floor without dragging.
Consider the room's practicalities when adding extra inches. In high-traffic areas, you might opt for less pooling to avoid tripping hazards. Conversely, in low-use spaces, a dramatic puddle can enhance the room's aesthetic appeal. Adjust your measurements based on these considerations.
Step 5: Consider the Curtain Header
The type of curtain header (the top part of the curtain that attaches to the rod) can affect the overall length. Pencil pleats, eyelets, and tab tops each require different considerations. Ensure you account for this in your measurements to achieve the desired look.
Different headers can alter the curtain's hang and fullness. For example, eyelet curtains create uniform folds, while pencil pleats offer a more traditional gathered appearance. Factor in the header's effect on the curtain's drop to avoid unexpected results.
Curtain Measurement Examples

Let's look at a practical example to clarify the process. Understanding real-world scenarios can help translate theory into practice, ensuring you're prepared for measuring your own curtains.
Example: Floor Length Curtains for a Living Room
Imagine you want floor length curtains for your living room window. Your window measures 60 inches from the top to the floor, and you plan to hang the curtain rod 4 inches above the window. You would measure from the rod to the floor, giving you 64 inches.
For a precise floor-length fit, you'd order curtains that are 64 inches long. This example illustrates the importance of considering both the window and rod placement when measuring. By following this method, you ensure that the curtains hang perfectly, enhancing the room's overall appearance.
Final Thoughts
Measuring curtain length might seem daunting at first, but with the right approach, it becomes straightforward. By understanding different curtain styles, using the proper tools, and following a step-by-step process, you can achieve the perfect curtain length for any room in your home.
Remember that accurate measurements are key to beautiful, functional curtains that enhance your space. So take your time, double-check your work, and enjoy the transformation that well-fitted curtains can bring to your home. With careful planning and attention to detail, you can achieve a look that perfectly complements your interior design.
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