My experience with garter stitch buttonbands knitted row by row as you knit the st st of each row at the same time is: the garter stitch, in wanting to suck up in length and be shorter…row for row, 20 rows of garter stitch will be shorter than 10 rows of st st…well anyway, a remedy for that is to work ‘extra rows’ of the garter stitch every so often…allowing the garter stitch bands to stack up taller, and catch up with the st st.
Readmy notes for Miss BB about how I did this using short rows over the garter stitch area.
I did the same routine for this jacket, too!
Now after all that, you’ll notice my garter bands are vertical. If you mean HORIZONTAL bands or borders…knit away! It won’t matter a bit. You’ll just knit til you reach the length
the pattern requires!