Card stock, also called cover stock, is a paper stock that is thicker and more durable than normal writing or printing paper, but thinner and more flexible than other forms of paperboard. Paperboard is a Paper -like material usually over ten mils (0 Card stock is often used for postcards, playing cards, catalog covers, scrapbooking, and other uses which require higher durability than regular paper. A postcard or post card is a rectangular piece of thick Paper or thin cardboard intended for writing and mailing without an Envelope and A playing card is a piece of specially prepared heavy paper thin card or thin plastic figured with distinguishing motifs and used as one of a set for playing Card games Scrapbooking is a method for preserving personal and family history in the form of photographs printed media and memorabilia contained in decorated albums or scrapbooks The texture is usually smooth, but can be textured, metallic, or glossy.
Card stock thickness is often described by pound weight. The paper density of a type of Paper or Cardboard is the Mass of the product per unit of Area. Pound weight is the weight of 500, 20" by 26" sheets. This differs from how text stock is determined, which assumes 500, 25" by 38" sheets. Most of the world used the term grammage to describe the weight of the paper in grams per square meter. The term Card stock is used to describe paper with weights from 50# to 110# (about 175 to 400 g/m²).
In the US, card stock thickness is usually measured in points or mils that gives the thickness of the sheet in thousandths of an inch. For example, a 10 pt. card is 0. 010" thick; 12 pt. is 0. 012".