Card stock = heavyweight, acid-free colored paper, available in a multitude of colors, weights and textures.
Card stock is among the most versatile elements in a scrapbooker's tool kit. Use heavyweight card stock as a ground sheet or background paper for a scrapbook page or to mat photos. Lightweight card stock can be used with craft punches or cut with decorative scissors. Use mediumweight card stock for die-cuts, alphabets or photo mats.