2 Ways to Sew Box Corners

Sew and Cut

The first method for sewing box corners requires you to first sew your two pieces of fabric together. Ashley demonstrates with small rectangles of fabric that could be used for a bag, but the process is the same no matter what project you are working on—the fabric should be sewn together, with right sides together. If you are new to this technique, check out how to sew corners first. Ashley then demonstrates how to align the seam along the bottom of the fabric with the seam along the side. She explains how to fold one seam allowance to one side and one to the other so that the seams lock together and are easier to ensure that they are aligned. Once aligned and pinned in place, Ashley explains how to draw a line across the corner, sew on the line, and then cut away the excess fabric. She explains that the further away from the corner you sew, the larger the box corner you will get.

Cut and Sew

The second method for sewing box corners still requires you to first sew your two pieces of fabric together with right sides together. Ashley again demonstrates this technique using small rectangles of fabric. She then shows how to cut a small rectangle from the corner of the stitched fabric pieces. She explains how and where to measure in from and how changing the size of square you cut from the edge will change the size of box corner you get. She then shows how to align the cut edges of the fabric, pin in place, and then stitch back together to create the box corner. Once you’ve learned how to sew box corners, check out this video on sewing mitered corners.