Categories of papers and boards

• What is the primary material used to make papers and boards?

  Wood pulp
• Where does wood pulp originate from?

  It originates from trees
• What is the industrial setting called where wood pulp is processed into sheets?

  Papermill
• How is paper density measured?

  In grams per square metre (gsm)
• What are the standard sizes of paper from A0 to A10?

  • A0: Largest size
  • A1: Half of A0
  • A2: Half of A1
  • A3: Common in schools
  • A4: Common in schools
  • A5: Half of A4
  • A6: Half of A5
  • A7: Half of A6
  • A8: Half of A7
  • A9: Half of A8
  • A10: Postal stamp size
• Which paper sizes are very common in schools?

  A4 and A3