1 Stage Frost also called 1 Shot Frost
One stage/1 shot frost is where I cut and peel away the stencil, in all the areas that are to be frosted. I then sandblast all the exposed areas, in a 1 shot solid frost. Easiest for me and most affordable for you.
These doors and sidelights are an example of a reverse etching where the background is frosted and the design remains clear.
A reverse etching is the best way to achieve privacy