Knit a Sideways Triangle Garter Stitch Shawl

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Sideways triangles are fun to knit and it’s easy to work them to a size in which you’ve used up all your yarn. In this video, Jen Lucas gives you a recipe-style pattern for how to knit a sideways garter stitch shawl. The shawl has increases on one side for half the piece, and then is decreased back down to the original stitch count.


This shawl can be knit in any weight of yarn you like, and Jen gives some recommendations for yarn amounts and needle size.

  • For Sock/Fingering Weight, you’ll need 400+ yards of yarn and a US Size 5 (3.75 mm) or US Size 6 (4 mm) circular needle, 24″ cable or longer
  • For Sport/DK Weight, you’ll need 350+ yards of yarn and a US Size 6 (4 mm) or US Size 7 (4.5 mm) circular needle, 24″ cable or longer
  • For Worsted Weight, you’ll need 300+ yards of yarn and a US Size 8 (.5 mm) or US Size 9 (5.5 mm) circular needle, 24″ cable or longer

You’ll also need stitch markers, tapestry needle, and blocking supplies.


If you’re knitting your shawl out of a single skein of yarn, weigh the yarn before you begin. The shawl begins with a long tail cast on, and increases are worked along one edge to create the shawl shape. Halfway through the shawl, the increases are replaced with decreases and the shawl is decreased to the original stitch count. By weighing the yarn at the beginning, you’ll know when to switch to the decrease section. You’ll do so when you’ve used half the total amount of yarn.

Get the PDF instructions for the shawl here.