What does the term "seam allowance" refer to?

Seam allowance refers to the area between the edge of the fabric and the stitching line. It is a crucial aspect of garment construction because it allows for the stitching needed to join pieces of fabric together while providing the necessary space for adjustments, finishing, and ensuring that the garment lays correctly. The seam allowance becomes especially important when alterations are needed after the initial sewing, as it can accommodate changes in fit without compromising the integrity of the garment. Properly measuring and maintaining the seam allowance ensures that the final product not only fits well but also looks professional and polished.