ABOUT PAPER28 MAJESTIK 5760/5765 MATERIALS USAGE GUIDEPaper Weightgsm Paper weight is generally expressed as grams per square meter(gsm), a measure that makes it easy to compare any two pieces ofpaper, even if the papers are of different types.Basis weight Paper weight is also expressed in terms of basis weight, which is theweight of 500 sheets of paper of a particular size. Because eachtype of paper (bond, offset, cover, index, etc.) is expressed in termsof a different basis size, a 20 lb bond paper and a 20 lb offset paperare not the same weight in gsm.M value The weight of some materials is described by the M value printed onthe package (i.e. 21.64M). The M value is the weight in lbs of 1,000sheets of the size of the paper in the package. To convert the Mvalue to gsm for 8.5 x 11” paper, multiply the M value by 7.527. Toconvert the M value to gsm for 11 x 17” paper, multiply the M valueby 3.763.Pt. value Pt (point) value refers to the sheet thickness in mils (thousandths ofan inch). For example, 10 pt. = 0.010”, or 7 pt. = 0.007” thick paper.You cannot directly convert pt value to paper weight or stiffness.For most paper types, the maximum recommended paper weight of163 gsm will be equivalent to 7 pt or 8 pt paper.