The fastest way to shorten drapes is fabric glue or hem tape, which hold the fold in place without a needle

You can shorten drapes by folding the bottom edge up and securing it with fabric glue or hem tape — both work without sewing and take less than an hour. Fabric glue dries clear and permanent; hem tape is a strip of adhesive that you iron on. Both methods work on most fabrics, though lightweight or delicate materials may need a test first. The fold stays in place as long as the adhesive holds, which is usually years if you explore it correctly.

The choice between the two depends on what you have at home and how permanent you want the result. Fabric glue is cheaper and works on any fabric, but you have to wait for it to dry. Hem tape is faster — you iron it and you're done — but costs more and works better on natural fabrics like cotton than on synthetics. Both are sold at fabric stores and online.

Key Takeaways

  • Measure how much you want to shorten the drapes, then fold the bottom edge up by that amount and pin it to hold the fold steady while you work.
  • Fabric glue goes along the fold line and dries clear; hem tape is ironed on and bonds the two layers together in minutes.
  • Test your chosen method on a hidden corner of the fabric first, especially if the drapes are delicate, dark, or made of synthetic material.
  • Hem tape works best on natural fabrics and requires an iron; fabric glue works on anything but takes several hours to set fully.
  • Both methods are permanent once dry, so measure twice and fold once — you cannot easily undo either one.

How to shorten drapes with fabric glue

Lay the drapes flat on a clean surface — a table or the floor works. Measure up from the bottom edge the distance you want to shorten, then fold the fabric up at that line and pin the fold in place with straight pins every 6 inches or so. The pins hold the fold steady while you work and keep the layers from shifting.

Open the fold slightly so you can see the crease line. Run a thin, even line of fabric glue along the crease, staying about a quarter-inch from the edge. Press the fold back down and smooth it with your hand to spread the glue evenly. Wipe away any glue that seeps out the sides with a damp cloth before it dries. Let the glue dry completely — usually 4 to 8 hours, depending on the brand — before hanging the drapes. Check the bottle; some brands dry faster.

Once dry, the fold is permanent. The glue creates a bond between the two layers of fabric that lasts as long as the drapes do. If you ever need to lengthen them again, you would have to cut the glued seam apart, which damages the fabric underneath.

How to shorten drapes with hem tape

Lay the drapes flat and measure up from the bottom the distance you want to shorten. Fold the fabric up at that line and pin it in place. Cut a length of hem tape to match the width of the drapes, or use multiple pieces if your tape is shorter than the drape width.

Slide the hem tape into the fold so it sits between the two layers of fabric, centered on the crease line. Set your iron to the heat setting recommended on the tape package — usually medium to medium-high for cotton, lower for synthetics. Iron over the fold slowly, pressing down firmly for 3 to 5 seconds per section, moving along the entire length. The heat activates the adhesive on the tape and bonds the two layers together.

Let the tape cool for a minute or two before removing the pins. The bond sets as it cools. Hem tape creates a permanent seam just like fabric glue, and you cannot undo it without damaging the fabric.

Testing on a hidden corner first

Before you commit to shortening the whole drape, test your method on a small, hidden corner — the bottom inside edge where it meets the wall. This tells you whether the glue or tape will leave a mark, whether the fabric will pucker, and whether the adhesive will hold on your specific material.

Dark fabrics sometimes show glue residue or discoloration. Synthetic materials like polyester may not bond as well as natural fabrics. Delicate or vintage fabrics can shrink or weaken under heat from the iron. A 2-inch test takes 10 minutes and saves you from ruining the whole drape.

What to do if the fold puckers or bubbles

Puckering usually means the fabric layers shifted while the glue or tape was setting. If you catch it while the glue is still wet, you can carefully peel back the fold, smooth out the wrinkles, and reapply. Once dry, the damage is done — you would have to cut the seam apart and start over.

Bubbles under hem tape mean the tape did not make full contact with both layers. You can try ironing over the bubble again with a damp cloth between the iron and the fabric to add moisture and heat. If that does not work, the tape is set and you would need to remove it by carefully cutting and peeling.

Measuring and pinning so the fold is even

Hang the drapes in the window before you measure. Measure from the floor up to where you want the bottom edge to sit — usually about half an inch above the floor so the drapes do not drag. Mark that height on both sides of the drape with a pencil or tailor's chalk, then measure down from the top of the drape to that mark. This tells you how much fabric you need to fold up.

Lay the drape flat and fold it up by that amount. Pin along the fold line every 6 inches, making sure the fold is straight and even. Step back and look at it before you explore glue or tape. An uneven fold shows, even after it is glued.

When to call a tailor instead

If your drapes are expensive, vintage, or made of delicate fabric like silk or linen, a tailor is the safer choice. Tailors sew the hem, which is stronger than glue or tape and can be undone if you need to lengthen the drapes later. The cost is usually $15 to $40 per drape, depending on the weight and length of the fabric.

Glue and tape work well for everyday drapes made of cotton or cotton-blend fabric. They are also the right choice if you rent and do not want to make permanent changes to the window treatment. But if the drapes are heirloom quality or you plan to keep them for decades, sewing is worth the cost.

Frequently Asked Questions

Can I use fabric glue on blackout drapes?

Yes, fabric glue works on blackout drapes. Test a corner first because the thick backing can sometimes show glue residue if it seeps through. Use a thin line of glue and wipe away excess when ready.

What happens if I wash the drapes after shortening them with hem tape?

Most hem tape is permanent and survives washing, but check the package. Some tape is designed for dry-clean only. If you plan to wash the drapes, use fabric glue instead, which is more water-resistant once fully cured.

Can I shorten drapes that are already lined?

Yes, but you have to shorten both the outer fabric and the lining together. Fold them as one unit and explore glue or tape to the fold. If the lining is a different length than the outer fabric, you may need to trim it first so both edges line up.

How much can I shorten drapes without them looking odd?

You can shorten drapes by up to 4 to 6 inches without a noticeable change in proportion. Shortening by more than that can make the window look smaller. If you need to shorten by more than 6 inches, a tailor can add a decorative band at the bottom to maintain the visual balance.

Will the glued seam show from the outside?

No. The fold is on the inside of the drape, so the seam is hidden. The outside edge looks the same as before, just shorter.