A curtain is a window treatment that hangs from a rod above a window. Curtains come in various materials, often fabrics of varying density and weight. You can install curtains to block or mute light, help control a room’s temperature, or add accents of color or pattern to an interior space. Some curtains are functional (blackout curtains block exterior light), while others are mainly decorative. Curtains are typically a combination of function and [design](https://www.masterclass.com/articles/interior-design-basics) and can shape your home decor’s aesthetics and comfort level. Curtains come in different styles to fit the needs of interior designers and home decorators. Some of the most common curtain styles include: 1. __Panel pair__: A panel pair of curtains hang from a single bar above the window. The two panels cover the entire length of the window and often reach down to just above the floor. The curtains pull together to meet in the middle to block exterior light and can be drawn to each side of the window to let light in. 2. __Single-panel__: The single-panel curtain is a singular piece of material that hangs from the curtain rod. You can draw the single panel to one side or the other, which gives the space a modern, asymmetrical look. Single panels can work well in living rooms or bedrooms. 3. __Valance__: A valence is a narrow strip of material covering only the very upper portion of a window. Valances typically feature a pleated swag that creates a half-circle shape atop the window. You can pair a valance with other curtains or use it solely as a decorative accent. 4. __Window curtain set__: A complete curtain set typically includes two panels, a valence, rods, and tiebacks. Sets come with pre-coordinated colors and textures, making it more of a simple, one-stop-shop option. 5. __Window tier__: These curtains cover the lower portion of a window frame. Window tiers allow for some privacy while still allowing light to enter the room. Cafe curtains are an excellent example of a classic type of window tier. 6. __Window scarf__: A window scarf is typically a single piece of lightweight material that drapes across the curtain rod, falling to either side of the window. Window scarves do not obstruct the window view or light emission and are a good bridge between classic and contemporary styles. 7. __Curtain liner__: You can place a curtain liner behind a single or pair curtain to help with light and noise reduction, increase privacy, and assist with temperature regulation. Curtain liners are also helpful to hang behind shower curtains, as they can be waterproof. 8. __Pleated curtains__: Pleats are small folds sewn into the fabric of the curtain, creating a repeating visual pattern and providing some additional density. The pleating usually occurs at the top of the curtain and can be narrow and tubular, as in pencil pleats, or wide and flat, such as box pleats or pinch pleats. Curtains with a pinch at the bottom are goblet pleats. The length of your curtains will help determine both the aesthetic and functional elements of your design ideas. Some typical curtain lengths include: 1. __Sill__: Curtains can stretch from the rod to the bottom of the window sill. This curtain length works best for smaller-sized windows and tends to allow more light around the edges, even when closed. 2. __Apron__: These curtains descend a bit lower than the window sill. Apron curtains work with smaller windows, and when closed, the curtains make the windows appear larger than they are. 3. __Floor__: Curtains can hang within an inch or two of the floor. Floor curtains can be used on smaller or larger windows and offer a larger surface area to display color, pattern, and texture. 4. __Puddle__: Puddle-length curtains “pool” or “puddle” on the floor, creating a dramatic effect. These curtains can work exceptionally well in rooms with high ceilings or around French doors, offering complete privacy and stylish flair. Curtain rods come in various materials, like wood or plastic, and feature finials to hold the panels in place. Curtain rod styles can range from modern simplicity to Rococo, and there are various ways to attach, hang, or slide a curtain on a curtain rod. Below are some of the most frequently used types of curtain rod attachments: 1. __Grommet and eyelet__: Also known as grommet curtains, this style uses eyelets or small apertures to attach the curtain to the rod, allowing the panels to slide in either direction. Grommets, usually made from metal or plastic, reinforce the eyelets and can be eye-catching design features in and of themselves. 2. __Rod pocket__: In this design, the curtain rod passes through a long channel or “pocket” sewn into the length of the curtain panel. Rod pocket curtains can feature ruffles or pleats to accentuate the chosen style. 3. __Tab top__: Tab top curtains suspend from the rod via sewn fabric tabs, usually made of the same material as the curtain panels. 4. __Hidden tab__: These curtains use tabs that are concealed from view by a strip of material. Similar to a rod pocket design, hidden tab curtains are versatile and can feature embellishments of pleats or ruffles. Curtains come in a wide variety of different [fabrics](https://www.masterclass.com/articles/28-types-of-fabrics-and-their-uses). Either natural or synthetic, curtain fabrics correspond to the specific aesthetic and functional requirements of the designer or homeowner. Standard fabrics for window coverings include: 1. __Cotton__: Cotton is soft, relatively lightweight, and comes in many different colors, designs, and textures. [Cotton](https://www.masterclass.com/articles/what-is-cotton) curtains can be sheer or heavily woven to dampen light and noise. 2. __Linen__: Linen is a natural fiber like cotton, although it is more heavyweight and more textured. [Linen](https://www.masterclass.com/articles/what-is-linen-everything-you-need-to-know-about-using-and-caring-for-linen) curtains offer somewhat more privacy than cotton, but their rougher texture means that they take more effort to keep clean. 3. __Velvet__: Velvet is a heavy, dense fabric. It has a distinctive texture with a plush, light-catching sheen, and it is an excellent choice for keeping light and sound to a minimum. This opacity also means that velvet is perfect for maximum privacy. One drawback is that you must get velvet curtains professionally cleaned. 4. __Silk__: Silk curtains also require professional cleaning, but unlike velvet, they are almost sheer, allowing much more light to pass through. Their highly recognizable sheen makes them a popular choice for adding luxury to the decor of a room. 5. __Lace__: Lace is a sheer fabric, meaning it allows ample light to pass through. Sheer curtains are for decorative purposes, as the privacy and light-reducing effects are minimal. You can pair lace curtains with other fabrics, adding to the decorative possibilities in your window dressing. 6. __Polyester__: Polyester is a synthetic fabric that’s inexpensive and highly versatile. While it can imitate the properties of natural fibers, from heavyweight to semi-sheer, it isn’t as high-quality. Polyester is also flammable and can absorb odors. 7. __Acrylic__: This higher-quality synthetic fiber offers durability and sound insulation. It’s also hypoallergenic, resists fading, and can be dyed and designed in a wide variety of colors. Acrylic’s versatility and durability make it a good choice for rooms that get a lot of use, such as living rooms. When you’re shopping for curtains, consider aesthetics and functionally. 1. __Determine the number of panels__. Which windows are you going to put your curtains on? Are you doing the whole house or apartment, or are you starting simple with one room? 2. __Choose your style__. Your curtain choice is one element of the overall look and feel of the space you’re decorating, and because of curtains’ eye-level prominence and proximity to windows, the decision can be a decisive one. Consider the room design and [paint](https://www.masterclass.com/articles/kelly-wearstlers-tips-for-working-with-color) colors. Are you going for a modern or classic look? Does symmetry matter? Are you seeking a lush, romantic aesthetic or a sleek, airy one? 3. __Think about function__. The control of light is an essential element of interior design. Heavy curtains, such as those made from velvet, can completely block outside light. Lace, on the other end of the spectrum, blocks almost no light. Is privacy paramount? Or is it critical that you keep the space light-filled? Master everything from color theory to pattern mixing with the [MasterClass Annual Membership](https://www.masterclass.com) and exclusive lessons from award-winning interior designers like Kelly Wearstler and Corey Damen Jenkins. From shopping for statement furniture to designing a lighting scheme to choosing the newest member of your plant family, the skills you’ll pick up are sure to make your house, apartment, or condo feel even more like a home. From room-darkening curtains to decorative drapery, there are many options to consider when choosing window treatments.