On 12/02/2017 22:50, James Wilkinson Sword wrote:
On Sun, 12 Feb 2017 13:32:32 -0000, dave wrote:

Is 80 gms printer paper getting thinner - or am I just imagining it!
Certainly getting more expensive

0.1mm per sheet - a good way to count it is to use a micrometer.


There's a hole in my bucket dear birdbrain, dear birdbrain. The OP was
complaining about the variable thickness of 80gsm paper which suggests
the density of the sheets - and hence the thickness - is variable.

A better way to 'count' sheets would be to weigh them. Each A4 sheet
occupies an area of 0.06237m2 (297 x 210mm). Therefore 16.0333493666827
sheets per m2. Each sheet must always weigh 0.200416867083534 grams
regardless of thickness (otherwise it is not 80gsm paper).