Make a small cut in elastic casing at the edge of the fabric seam to access the elastic inside.

With your sewing scissors, carefully cut the stitches that attach the elastic to the fabric, if sewn in place.

On some sheets, the elastic isn’t sewn directly to the fabric—it’s threaded through a casing and can be pulled out.

Gently pull the elastic to detach it from the fabric.

Continue cutting and pulling the elastic until it completely detaches from the casing.