Step 1 · Measure and Mark Wainscoting Height

Using a tape measure, determine the desired height for the wainscoting. This is typically around 32 to 36 inches from the floor, but can be adjusted based on preference and ceiling height. Mark this height lightly with a pencil at several points along the wall, including the top and bottom of the staircase. Use a level to connect these marks and create a consistent horizontal line around the entire staircase wall. This line will serve as a guide for the top of your baseboard or the bottom of your board and batten.