What defines a smooth finish on drywall?

A smooth finish on drywall is characterized by a flat surface that is ideal for painting. This type of finish is achieved through careful sanding and finishing techniques that eliminate bumps, seams, and imperfections on the drywall surface. A well-prepared smooth finish allows for an even application of paint, enhancing the appearance of the walls and ceilings in a space. This is particularly important as any flaws in the surface can become more noticeable once paint is applied, making a smooth finish essential for achieving a professional look. The focus here is on creating a surface that is visually appealing and ready for decorative treatments, which aligns perfectly with the requirements for optimal painting conditions.