Double or twin needles are great for decorative stitching, hemming, and heirloom sewing. They’re my favorite go-to needle for hemming knits. Best of all double needles fit almost every sewing machine.

Double Needle Facts

double needles nancy zieman

  • Double needles fit any machine where the needle is threaded front to back not side to side.
  • Common double needles sizes include: 1.6, 2.0, 3.0, 4.0, and 6.0.
  • The sizing refers to the distance in millimeters between the needles.
  • Size 6.0 is too wide for some machines. If the widest zigzag stitch is 4.0 on your machine, do not use a 6.0. The opening in the throat plate is not wide enough for this extra wide double needle.
  • The bobbin thread catches both top threads, resulting in a zigzag look on the fabric underside.

Sewing Tips for Double Needles

  • Use two spools of thread on the top of the machine, position them so the threads unwind in opposite directions. This prevents the threads from tangling.

Nancy Zieman Double Needle

  • If your machine does not have two spool pins, wind an extra bobbin and stack the bobbin with the spool on the spool pin.

Nancy Zieman Double Needle

  • If the fabric between the double stitching “tunnels,” loosen the top tension.

Nancy Zieman's Sewing A to Z

All my favorite sewing tips are in one book

  • The Absolute Easiest Way to Sew chapters include:

    • Sewing Notions
    • Sewing Machine Confidence
    • Serger Spotlight
    • Patterns
    • Fabric Facts
    • Sewing Basics
    • Beyond the Basics

The Absolute Easiest Way to Sew by Sewing With Nancy Zieman

Watch Sewing With Nancy online.

For additional sewing insights and my favorite sewing techniques, check out my 3-part Sewing With Nancy online TV series, The Absolute Easiest Way to Sew.



Where do you use a double or twin needle? Please share!


Nancy's Giveaway Winner

Thank you for sharing which bag or tote option was your favorite from the Innovative Bags & Totes 2 part series. The random winner of the Innovative Bags & Totes book is Robin Cleveland. “All were great, but I liked the ‘fat quarter’ bag the best.”

Innovative Bags & Totes

Bye for now,

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