What is French-ruled Paper? Simply put, French ruled or Séyès paper is the standard lined paper used by students in France. It is as commonly used in France as college ruled paper is used in the USA. French ruled paper consists of an 8mm x 8mm grid, with lighter or thinner horizontal lines spaced 2mm apart inside the main grid. There is a left margin, as well as some space without the horizontal lines at the top and bottom of the page.