2 rows garter stitches knitted back and forth on straight needles make 1 ridge. And 1 knitted row + 1 purled row when working in the round with circular needles make 1 ridge.
synonyms: ridge, 1 ridge, 2 rows of garter stitch, 2 rows of garter stitches, 2 rows garter sts
category: technique
How to work garter stitch back and forth