What part of the carpet should not be cut when making seams?

When making seams in carpet installation, it is crucial to avoid cutting the pile. The pile refers to the yarn or fibers that create the surface of the carpet. If the pile is cut inadvertently, it can result in an uneven appearance and affect the overall aesthetic quality of the installation. When designing seams, maintaining the integrity of the pile ensures that the carpet looks uniform and visually appealing.

While the edges, backing, and seams are also important considerations during the installation process, it is specifically the pile that should remain intact to preserve the carpet's look and functionality. Cutting the edges or the backing could affect how the carpet fits or adheres, but cutting the pile directly impacts the end appearance, making it a critical aspect to focus on during seam creation.