What is the purpose of the selvage edge on a roll of fabric?

The purpose of the selvage edge on a roll of fabric is to prevent the fabric from unraveling. The selvage is the finished edge of the fabric, created during the manufacturing process, which typically involves weaving. It is tightly woven to create a strong edge that resists fraying and loosening of the fibers, ensuring that the fabric remains intact during cutting and sewing. This edge is crucial because it helps maintain the fabric's structure and usability, preventing issues that could arise if the edges were to unravel. In practical applications, this means that when working with fabric for construction or repairs, you can rely on the selvage to keep the integrity of the material throughout the handling and processing stages.