A rigid polymeric modular flooring plank can be one continuous piece having a top surface, a bottom surface and multiple sides defining the edges of said rigid polymeric modular flooring plank. The rigid polymeric modular flooring plank can include the appearance of multiple tiles or one tile as part of the top surface, with each of the multiple tiles having multiple simulated sides and a decorative surface, and each tile is completely surrounded by simulated grout lines that have a depth and either have a full width W or a half width ½W. Any simulated grout line that is located at any of said multiple sides has the half width and all other simulated grout lines have the full width. The rigid polymeric modular flooring plank has at least a polymeric base layer, a decorative layer, and a wear layer located above the decorative layer.