You've likely come across the term while shopping for window treatments and wondered what are pencil pleat curtains compared to all the other styles out there. To put it simply, they're the classic, reliable choice that you've probably seen in your parents' house, luxury hotels, and modern apartments alike. They get their name from the tight, consistent folds at the top that look a bit like a row of pencils lined up side by side.
While they might look fancy once they're up, the way they're made is actually pretty clever. Unlike other styles that have permanent, sewn-in folds, these use a specific type of heading tape and some strings to get that gathered look. It makes them one of the most versatile options you can buy, but there are a few things you should know before you commit to them.
How the "pencil" look actually happens
The secret to these curtains isn't in the fabric itself, but in the tape sewn onto the back of the top edge. This tape has three rows of sturdy strings running through it. When you buy them, the curtains usually come flat. You (or whoever is helping you) have to pull those strings to "gather" the fabric together. As you pull, the fabric bunches up into those neat, vertical pleats.
The cool thing about this setup is that you can actually control how tight the pleats are. If you want a really dense, heavy look, you pull the strings tight. If you want a wider, more relaxed look, you leave them a bit looser. It gives you a level of customization that you just don't get with things like eyelet curtains, which have fixed metal rings.
Why people still love them
You'd think with all the modern options available, pencil pleats would have gone out of style, but they're still a bestseller for a reason. First off, they're incredibly versatile. You can hang them on a standard curtain track or a decorative curtain pole. If you've got a tricky bay window with a curved track, pencil pleats are usually your best bet because they glide smoothly around corners.
They also work with almost any interior style. In a formal dining room, a heavy velvet pencil pleat curtain looks expensive and traditional. In a breezy kitchen, a light linen version looks casual and cottage-core. Because the pleats are small and uniform, they don't draw too much attention to themselves, letting the fabric and the rest of your decor do the talking.
The installation process (and the messy strings)
Let's be real for a second: hanging pencil pleat curtains is a bit of a project. It's not just "hook and go." Once you've measured your window, you have to pull those strings to the exact width you need.
Pro tip: never, ever cut the strings once you've pulled them. If you cut them, you can never flatten the curtains out again for cleaning or if you move to a house with wider windows. Instead, you tie them in a neat knot (don't make it a dead-knot, use a slip knot) and tuck the excess string into the "pleats" or use a little storage bag if the curtains come with one.
Once the strings are pulled and tied, you have to insert curtain hooks into the tape. This is where people get confused because there are usually three different "levels" of pockets you can put the hooks into. This is actually a great feature because it lets you adjust the height of the curtain slightly. If you want to hide your curtain track, you put the hooks in the bottom row. If you're hanging them from a pole and want the rings to show, you use the top row.
Choosing the right fabric
Since the look of the curtain depends on the gathers, the fabric you choose makes a huge difference.
- Heavy fabrics: If you go for something like velvet or thick brocade, the "pencils" will look very defined and chunky. This is great for blocking out light and keeping heat in.
- Light fabrics: If you choose a thin cotton or a sheer fabric, the pleats will be much finer and softer. They won't hold that rigid "pencil" shape as strictly, but they create a lovely, flowing effect.
One thing to keep in mind is that pencil pleat curtains use a lot of fabric. Because you're gathering the material to create the pleats, the flat width of the curtain usually needs to be about two to two-and-a-half times the width of your window. If you try to skimp on the fabric, the pleats will look stretched out and sad rather than full and luxurious.
Pencil pleats vs. Eyelet curtains
When people are debating what to buy, it's usually between pencil pleats and eyelets. Eyelet curtains are those ones with the large metal holes at the top that slide directly onto a pole. They're definitely easier to hang—you literally just thread them on.
However, eyelets have a much more modern, "chunky" look. They create wide, deep folds in the fabric. Pencil pleats, on the other hand, are more delicate. Also, you can't use eyelets on a track; they must go on a pole. If you have a track system already installed, or if you prefer a look that hides the hardware, pencil pleats are your winner.
What about pinch pleats?
It's easy to get these two confused. While pencil pleats are gathered using strings, pinch pleats are permanently sewn into groups (usually two or three folds "pinched" together).
Pinch pleats are more formal and usually more expensive because they require more manual labor to sew. They also don't have that "adjustable" width feature that makes pencil pleats so handy. If you're looking for something that's a bit more relaxed and easier on the wallet, stick with pencil pleats.
Maintenance and care
Cleaning these can be a little bit of a hassle compared to flat panels. Dust tends to settle in the tops of the pleats over time. A good tip is to use the upholstery attachment on your vacuum cleaner every now and then to give the tops a quick once-over.
When it comes to a deep clean, you usually have to unhook them, untie the strings, and flatten them out. Check the care label—most are dry clean only, especially if they have a blackout lining. If you do wash them at home, make sure you don't lose those strings inside the heading tape, or you'll have a nightmare of a time trying to fish them back through!
Are they right for your room?
Deciding on "what are pencil pleat curtains" for your specific space usually comes down to the vibe you're going for. If you want a window treatment that feels finished, tailored, and timeless, you can't really go wrong here. They bring a bit of texture to the top of the window that flat styles just lack.
They're especially good for bedrooms where you want to block out every sliver of light. Because the gathers are so tight, they tend to hug the wall or the window frame better than other styles, especially if you hang them on a track that's fitted close to the ceiling.
A few final thoughts on hooks and hardware
Don't forget that the hooks matter too. You can get plastic ones or metal ones. Plastic is fine for light-to-medium fabrics, but if you've gone for heavy-duty thermal curtains, do yourself a favor and buy the metal hooks. They won't snap under the weight, and they'll keep your pleats looking sharp and upright rather than sagging forward.
Actually, the "sagging" look is the number one mistake people make with pencil pleats. It usually happens because the hooks are spaced too far apart. Try to put a hook every 4 or 5 pleats to keep everything supported. It takes a few extra minutes, but it makes the difference between a DIY job and a professional-looking finish.
Anyway, that's the lowdown on pencil pleats. They might require a bit of "elbow grease" during the initial setup—pulling those strings and getting the hooks just right—but the result is a classic look that honestly never really goes out of fashion. Whether you're aiming for a cozy cottage look or a sleek, high-ceilinged apartment aesthetic, they're a solid, reliable choice for any window in the house.