To begin, I snap layout lines, then screw (where there are studs) and glue (where there aren't) strips of 1/2-inch drywall cut to fit.
I tape the seams with fiberglass mesh tape before attaching the beads with spray adhesive and staples.
I use different trim profiles and combinations to create different styles.
Applying the bead to create the wainscot profile
In this example, each wall section is framed with one panel. I did it that way because the spacing of the electrical boxes and heating ducts made it impossible to divide the walls into the evenly spaced panels you’d see with a traditional wainscot design.