Six pattern repeats (169 sts). Each gray and white stripe is 12 rows high; the first and last (navy) stripes are 16 rows high. The first and last three rows are in garter (maintaining increases and decreases on RS).

The 12-row gray and white stripes take almost exactly 1/3 skein.

This blanket turned out a bit too skinny even after aggressive steam blocking/killing. Next time I would add a stitch to each leg of the zig-zag pattern. An extra pattern repeat would be a bit too much, as I usually shoot for 30” wide.