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180 Appendix A Specifications ENWW
Paper weight equivalence table
Use this table to determine approximate equivalent basis weight in weight specifications other
than U.S. bond weight. For example, to determine the equivalent of 20 lb U.S. bond weight paper
in U.S. cover weight, locate the bond weight (in row two, first column) and scan across the row to
the cover weight (in the third column). The equivalent is 75 g/m
2
(28 lb).
Note Shaded areas indicate a standard weight for that grade.
U.S.
Bond
Weight
(lb)
U.S.
Text/
Book
Weight
(lb)
U.S.
Cover
Weight
(lb)
U.S.
Bristol
Weight
(lb)
U.S.
Index
Weight
(lb)
U.S. Tag
Weight
(lb)
Metric
Weight
(g/m
2
)
17 43 24 29 35 39 64
20 50 28 34 42 46 75
21 54 30 36 44 49
80
22 56 31 38 46 51 81
24 60 33 41 50 55 90
27 68 37 45 55 61
100
28 70 39 49 58 65 105
32 80 44 55 67 74 120
34 86 47 58 71 79 128
36 91 50 62 75 83 135
39
100 55 67 82 91 148
4210758728797157
43 110
60 74 90 100 163
47 119
65 80 97 108 176
53 134 74 90
110 122 199
58 146
80 98 120 133 216