A4 paper is the most commonly-used for printing and measures 210mm x 297mm. This paper comes in many different weights and with several different coatings, meaning there is an A4 paper that is suitable for any printing job.
Considering this, what is regular copy paper?
When people talk about “office copy paper”, they’re referring to the types of paper that most people that is used in printers and photocopiers at home/work. … The standard office copy paper weight is most commonly called “20 lb. bond”. Standard office copy paper weighs approximately 10.0 lbs per 1000 sheets.