Mark Initial Paint Height for Dark Color

What happens here

After the primer is dry, determine the desired height for the 'chair rail' stripe, which is typically between 3 to 4 feet from the floor. Use a tape measure to mark small reference points around the room. These marks should be placed approximately 2 inches *above* where the top edge of the finished stripe will eventually be. These initial marks will serve as a guide for painting the first dark blue color, ensuring it extends sufficiently above the final stripe area.

Goal: Establish the approximate upper boundary for the dark blue paint application.