What Is an Overlocker and Do You Really Need One?

What Does an Overlocker Do?

Unlike a traditional sewing machine, which sews a single straight or zigzag line, an overlocker uses multiple threads to create a stretchable, durable stitch. It also trims the edge of the fabric while encasing it in thread, resulting in polished seams that look clean and won’t fray. Overlockers are especially effective when working with stretchy fabrics, such as jersey or spandex, as they maintain the garment's elasticity.


What Types of Projects Benefit from an Overlocker?

Overlockers shine in garment making, but their usefulness goes far beyond just clothes. They’re great for:

  • Activewear and swimwear – thanks to their stretch stitch capabilities

  • Home furnishings – like cushions, curtains, and table linens with clean edges

  • Baby and children's clothing – where durability and comfort are key

  • Craft projects – including tote bags and decorative fabric gifts

Whether you're working on stretch-heavy fabrics or durable home décor, an overlocker provides a fast, clean solution that enhances your overall results.


Key Benefits of an Overlocker

  • Speed and efficiency – Overlockers work fast, ideal for bulk sewing or time-sensitive projects.

  • Professional finishes – No need for zigzagging or double stitching to prevent fraying.

  • Stretch compatibility – Perfect for leggings, t-shirts, and sportswear.

  • Decorative stitching – Certain models allow for beautiful finishing touches on hems and edges.


What to Consider When Buying an Overlocker

Before you invest, it's worth thinking about:

  • Threading: Some machines are easier to thread than others - look for colour-coded guides or air-threading models.

  • Number of threads: Most beginner-friendly models use 3–4 threads; more advanced machines can go up to 8.

  • Adjustable settings: Look for differential feed, tension control, and stitch width for flexibility across projects.

  • Accessories: Check for included presser feet, scrap catchers, or extension tables for added practicality.

These considerations will help you choose the right model for your sewing journey, whether you're just starting out or levelling up.


Do You Really Need One?

Not everyone needs an overlocker - but it depends on your sewing goals. If you regularly make garments, particularly from knits or stretch fabrics, an overlocker can elevate your work both in appearance and durability. If you're a beginner just learning the basics, a standard sewing machine may be sufficient for now. However, as your sewing journey progresses, an overlocker can become a powerful upgrade.


Ideal for Hobbyists & Professionals

Whether you’re a weekend crafter or running a small business, an overlocker helps you work smarter - not harder. Many models today come with user-friendly features such as colour-coded threading systems and adjustable differential feed, making them suitable even for beginners.