Grammage is specified in avoirdupois pounds and the sheet count of a paper ream is usually 500 sheets. However, the mass specified is not the mass of the ream that is sold to the customer. Instead, it is the mass of the uncut "basis ream" in which the sheets have some larger size (parent size). Often, this is a size used during the manufacturing process before the paper was cut to the dimensions in which it is sold. So, to compute the mass per area, one must know The standard dimensions and sheet count of a ream vary according to the
Perforated paper the paper is of a heavy weight, it does not require a hoop or frame when stitching. Perforated paper is manufactured in a number of different colours and is typically sold as 14-count A4 size sheets. The "count" refers to the fact that there are 14 holes/perforations per linear inch. This material, known as "Perforated card-board" at the time, first became available in the 1820s as plain sheets used for the creation of bookmarks and small mottoes and sayings, often taken from the Bible. By the 1870s the Victorian craze for this inexpensive and versatile craft material was at its