How to Knit Frog Closures

Written by daniel scott
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How to Knit Frog Closures
Unlike regular knitting needles, double-pointed needles have points on both ends. (Brand X Pictures/Brand X Pictures/Getty Images)

Knitted frog closures are most often used to button knitted jackets or cardigans closed. The knitted frog is a basic I-cord that is twisted and woven upon itself. The frog generally includes a knot that functions as a button and a loop on the opposite side that functions as the button hole. Making the I-cord is not a basic knitting skill, but it does require use of double-pointed needles and accurate tension. Because of this, knowledge of basic knit stitches is a prerequisite for knitting frog closures.

Skill level:

Things you need

  • Yarn
  • Two double-pointed needles
  • Sewing needle for yarn

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  1. 1

    Cast on three stitches.

  2. 2

    Slide work across needle and knit in the round using the other double-pointed needle. It can be difficult to get the I-cord started because you have to pull the yarn around the back of the work to start the second row.

  3. 3

    Continue knitting in the round until your I-cord is 13 to 15 inches long.

  4. 4

    Make another I-cord two inches longer than the first.

  5. 5

    Use a pattern to lay out your I-cord on the front of the jacket. If you do not have a pattern, twist the shorter I-cord into a pretzel-like design. Pin I-cord in place. Make sure to leave a loop of the I-cord extending over the edge of the jacket front to serve as the button hole. Do not stitch in place yet.

  6. 6

    Fold the second I-cord in half. Tie a knot in the fold. Twist the second I-cord into a mirror image of the I-cord you have pinned in place. The knot should be on the front edge of the jacket across from the loop you made on the other side. Pin your I-cord in place and make sure your designs are symmetrical. Tuck the ends of both I-cords under to hide them.

  7. 7

    Check that the closure works satisfactorily. If the loop is too big, adjust placement to make it smaller. Adjust I-cord on other side of jacket to keep them symmetrical. Check that the closure is aligned properly so that the jacket hangs straight when the frog closure is closed.

  8. 8

    Stitch your I-cords in place when you are satisfied with your pinned layout.

Tips and warnings

  • Even knitting tension will keep your I-cord properly shaped. If you are getting thin and thick areas of I-cord, this is a tension problem. Adjust the wraps of yarn around your tension finger until you can keep the tension even.

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