Before starting to paint, all hardware should be what?

Before starting to paint, all hardware should be removed. This step is crucial because it allows for a smoother and more even application of paint. Removing hardware such as doorknobs, hinges, and any other fixtures ensures that these areas are not accidentally painted over, which can create unsightly drips and uneven finishes. Additionally, it prevents hardware from being damaged during the painting process and makes clean-up easier, as it eliminates the need for touch-ups around these objects after the painting has been completed.

While cleaning thoroughly is an important preparation step to ensure proper adhesion of the paint, it is not as critical as removing hardware before painting. This guarantees the best possible outcome in terms of aesthetics and durability of the paint job.