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PAPER AND CARD WEIGHT / GRAMMAGE

V. Ryan 2012-2016

 

The mass per unit area of paper / card is measured in grams per square metre (g/m2). This is called grammage, although most people refer to it as weight. Office copier paper is usually 80g/m2 (80gsm), A4 in size and ordered in reams (packets) of 500 sheets. However, card thickness (sometimes called ‘caliper’) is generally measured in micrometers (microns).
 
 
 
1000 microns = 1mm
 
 
 
 
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