I have been looking for lining paper.
Some is described as 150gsm (at B&Q), whereas others are described as 1700 grade or 2000 grade (at Wickes).
(1) Are there 2 separate grading systems?
(2) Or does 2000 grade simply mean 200gsm?
(3) If there are 2 grading systems, which is the heavier paper, 150gsm or 2000 grade?
Thanks