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How to Measure and Shorten Zippers: A Step-by-Step Guide

Learn the Proper Techniques for Measuring and Shortening Open-End and Closed-End Zippers to Ensure Perfect Fit Every Time

Zippers are an essential part of many clothing items, bags, and accessories. However, in order to use zippers effectively, it's important to measure them correctly. In this blog, we'll go over the steps for measuring two main types of zippers: open-end zippers and closed-end zippers. We'll also cover the process for shortening zippers when necessary.


Measuring Open-End Zippers

Open-end zippers are zippers that can be separated completely at the bottom. To measure an open-end zipper, follow these steps:

  1. Measure the total length of the zipper, from the top stopper to the bottom stopper.
  2. If the zipper has a pull tab, do not include it in your measurement.
  3. If the zipper tape extends beyond the bottom stopper, measure the length of the tape separately.


Measuring Closed-End Zippers

Closed-end zippers are zippers that cannot be separated completely at the bottom. To measure a closed-end zipper, follow these steps:

  1. Measure the length of the zipper teeth only, from the top stopper to the bottom stopper.
  2. If the zipper has a pull tab, do not include it in your measurement.
  3. Do not measure the length of the zipper tape beyond the bottom stopper.


Shortening Zippers

Sometimes, you may need to shorten a zipper to fit a specific length. Here's how to do it:

  1. Determine if the zipper can be shortened. Chunky plastic zippers and metal tooth zippers can usually be shortened, but other types may not be able to.
  2. Cut off the excess length of the zipper, leaving about 1 inch of tape beyond the new desired length.
  3. Excess teeth can be removed with pliers.
  4. Sew/insert a new stopper at the end of the zipper tape to prevent the pull tab from falling off.

It's important to note that shortening a zipper can be difficult, so it's best to practice on a spare zipper before attempting it on a garment or accessory. It's also important to make sure that the new stopper is securely attached to the end of the zipper to prevent it from coming off.



Other Key Points

Here are a few additional key points to keep in mind when working with zippers:

  1. Materials - Different types of zippers may be made from different materials, such as metal, plastic, or nylon, which can affect the measurement and shortening process.
  2. Uses - Zippers are used in a variety of items, such as clothing, bags, and accessories, and measuring them correctly is important for ensuring proper function.
  3. Troubleshooting - Sometimes, zippers can become stuck or bent, which can affect the measurement process. Be sure to troubleshoot any issues before attempting to measure or shorten a zipper.
  4. Maintenance - Proper maintenance of zippers, such as cleaning and lubricating them, can help ensure they continue to function properly over time.

By following these steps and keeping these key points in mind, you'll be able to measure and shorten zippers with confidence.


By R MCCONNELL December 15, 2024
When it comes to bag making , choosing the right materials is essential. Among these, nylon coil zips are a popular and versatile choice, offering durability, flexibility, and style. Whether you are an experienced bag maker or a beginner, understanding the characteristics, benefits, and uses of nylon coil zips can elevate your projects to the next level. This article delves deep into the features, types, and tips for using nylon coil zips in bag making, ensuring your creations are not only functional but also visually appealing. What Are Nylon Coil Zips? Nylon coil zips, often referred to as nylon zippers , are a type of zipper with teeth made from coiled nylon filament. Unlike metal or moulded plastic zippers, the teeth of nylon coil zips are flexible and lightweight, making them ideal for applications requiring smooth operation and adaptability. Key Characteristics of Nylon Coil Zips Durability : The coiled nylon teeth are resistant to wear and tear, making them perfect for daily-use bags. Flexibility : Their soft and pliable design ensures they can curve seamlessly, suitable for designs with rounded edges. Variety of Sizes : Available in a range of widths, from delicate #3 zippers for small pouches to sturdy #5 and #10 zippers for heavy-duty bags. Colour Options : Nylon coil zips come in a spectrum of colours, allowing for perfect coordination with fabrics. Ease of Use : They are easy to sew into projects, whether by hand or machine. Why Nylon Coil Zips Are Perfect for Bag Making Versatility in Design Nylon coil zips can adapt to various bag styles, from compact clutches to large travel duffels. Their flexibility makes them an excellent choice for: Backpacks : Offering durability to withstand heavy loads. Handbags and Totes : Adding a sleek, professional finish. Cosmetic and Toiletry Bags : Resistant to moisture, ensuring contents stay protected. Laptop Sleeves : Providing a secure yet smooth closure. Durability for Everyday Use Bags often endure significant strain, especially at the zipper area. Nylon coil zips are designed to handle frequent usage without compromising functionality. Their robust coil teeth can withstand pulling and tugging, ensuring longevity. Aesthetic Appeal With the ability to match zippers to fabric or thread, nylon coil zips offer a polished, cohesive look. Invisible nylon coil zips are also an option for those who want a concealed closure. Types of Nylon Coil Zips for Bag Making Closed-End Nylon Coil Zips These zips have a stopper at the end, preventing the slider from detaching. They are ideal for pockets, small pouches, and fixed closures. Open-End Nylon Coil Zips Designed for applications where the zip needs to separate completely, such as jackets or expandable bags. Continuous Nylon Coil Zips These are long zipper tapes without pre-attached sliders, allowing you to cut the desired length. Continuous zippers are cost-effective and versatile for large projects. Tips for Using Nylon Coil Zips in Bag Making Selecting the Right Size The size of the zipper is determined by the width of its coil. Use: #3 Zippers for lightweight bags and interior pockets. #5 Zippers for handbags, totes, and medium-sized bags. #10 Zippers for heavy-duty duffels and travel bags. Preparing the Zipper Trim the zipper tape to the required length if using a continuous zipper. Apply a small amount of fabric glue to prevent fraying at the edges. Test the slider to ensure smooth movement before sewing. Sewing Techniques Use a zipper foot on your sewing machine for precise stitching. Secure the zipper with basting tape or pins before stitching to avoid misalignment. For curved edges, snip small notches into the zipper tape to allow it to bend smoothly. Adding Reinforcements Reinforce the ends of the zipper with bar tacks to enhance durability, especially for bags carrying heavy loads. Common Problems and Solutions When Using Nylon Coil Zips Problem: Slider Sticks or Catches Solution : Apply a small amount of zipper lubricant or wax along the coil for smoother operation. Problem: Fraying Zipper Tape Solution : Seal the raw edges with a lighter or fabric glue to prevent unraveling. Problem: Misaligned Zipper Installation Solution : Use washable markers to mark alignment points before sewing. Innovative Uses of Nylon Coil Zips in Bag Making Beyond standard closures, nylon coil zips can be used creatively: Decorative Elements : Brightly colored zippers can double as accents or trim. Expandable Compartments : Add zippers to create adjustable sections in bags. Hidden Pockets : Incorporate invisible zippers for secret compartments. Caring for Bags with Nylon Coil Zips To extend the life of your nylon coil zippers: Clean Regularly : Wipe down with a damp cloth to remove dirt and debris. Avoid Overloading : Excessive strain can damage the zipper teeth or slider. Lubricate Occasionally : A dab of silicone lubricant keeps zippers running smoothly. Conclusion Incorporating nylon coil zips into your bag-making projects offers unparalleled versatility, durability, and style. From their flexible design to their wide range of applications, nylon coil zips are an indispensable tool for crafters and professionals alike. By selecting the right type and mastering sewing techniques, you can create bags that are both functional and visually stunning.
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