How to Shorten a Zipper: A Simple Guide

Sometimes the perfect zipper is just too long. Learn to shorten it quickly with basic tools for a custom fit in any project.

What You’ll Need

• Zipper (metal or plastic)

• Sharp scissors

• Ruler or measuring tape

• Fabric marker or chalk

• Needle and strong thread

• Pliers (for metal zippers)

• Zipper stops (optional)

Step-by-Step Instructions

1. Measure & Mark

• Determine needed length for your project

• Mark cutting point on both sides of zipper tape

• Add ¾” extra below mark for finishing

2. Prepare the Zipper

For Plastic Zippers:

• Sew 5-6 stitches across tape at marked point

• Cut 1″ above stitches

• Seal cut end with lighter flame (briefly)

For Metal Zippers:

• Use pliers to remove teeth above mark

• Sew reinforcement stitches across tape

• Trim excess tape

3. Create New Stops

Option A: Thread Stops (Most common)

• Sew back and forth across tape 6-8 times

• Create dense “bar tack” with strong thread

Option B: Metal Stops

• Position stops just above cut line

• Crimp firmly with pliers

Option C: Fabric Glue

• Apply strong fabric glue across tape

• Let dry completely before testing

4. Test & Finish

• Slide zipper up to new stop several times

• Ensure smooth operation

• Trim any fraying threads

• Press with iron if needed

Quick Tips

• Always shorten from top (teeth end), not bottom

• Use heavier thread (denim or upholstery weight)

• For invisible zippers, shorten from bottom only

• Practice first on an old zipper

Shortening zippers takes just minutes but makes all your projects look professionally customized.