Hello Gaurav,

Yeah,70GSM paper will be enough to write your PCM class notes and it will be cheaper compared to other the high grade papers. Thickness of paper is specified by its weight in grams per square metre (GM or GSM). Low grade photocopier paper is around 80gsm; letterheads 100-120gsm with good quality letterhead around 120gsm. Business cards are around 350gsm and flyers around 300gsm-350gsm.

Some papers seem thicker or bulkier than others, despite being the same weight. Uncoated papers are bulkier than coated and matt and silk coated papers are bulkier than gloss. Card, which is known as “board”, is often measured in microns (one micron is 1,000th of a millimetre.