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Paper Grain

The direction in which the fibers of the paper are oriented. It is important to ensure that the grain direction is parallel with the bind to achieve the best results.

Paper Equivalent Weight Chart

The chart below shows the comparative weights of different paper stocks. A paper’s weight is based on the weight of 500 sheets of that paper in its master sheet size. Since the master sheet size varies according to paper type, the weights of the papers are not always consistent. 24-lb. Bond paper, for instance, has a lower weight number than 50-lb. Text, even though it is heavier paper. This is because the basic sheet size for Bond paper is 17” x 22”, while the basic sheet size for Text is 25” x 38”. To avoid confusion, it is often safer to discuss paper in terms of its gram weight. Please note that in some cases, the weights shown may not be available for certain paper stocks and are shown for comparison purposes only.

Bond
Offset
Cover
Index
Tag
Ledger
Text
Thickness
Metric
Points
Inches
MM(mm)
(grams/sq metter)
16
40
22
33
37
16
40
3.2
0.0032
0.081
60.2 gsm
18
45
24
37
41
18
45
3.6
0.0036
0.092
67.72 gsm
20
50
28
42
46
20
50
3.8
0.0038
0.097
75.2 gsm
24
60
33
50
56
24
60
4.8
0.0048
.12
90.3 gsm
28
70
39
58
64
28
70
5.8
0.0058
0.147
105.35 gsm
29
73
40
60
62
29
73
6
0.006
0.152
109.11 gsm
31
81
45
66
73
31
81
6.1
0.0061
0.155
116.63 gsm
35
90
48
74
80
35
90
6.2
0.0062
0.157
131.68 gsm
36
90
50
75
82
36
90
6.8
0.0068
0.173
135.45 gsm
39
100
54
81
90
39
100
7.2
0.0072
0.183
146.73 gsm
40
100
56
83
93
40
100
7.3
0.0073
0.185
150.5 gsm
43
110
60
90
100
43
110
7.4
0.0074
0.188
161.78 gsm
44
110
61
92
102
44
110
7.6
0.0076
0.193
165.55 gsm
47
120
65
97
108
47
120
8
0.0078
0.198
176.83 gsm
53
135
74
110
122
53
135
9
0.0085
0.216
199.41 gsm
54
137
75
113
125
54
137
9
0.009
0.229
203.17 gsm
58
146
80
120
134
58
146
9.5
0.0092
0.234
218.22 gsm
65
165
90
135
150
65
165
10
0.0095
0.241
244.56 gsm
67
170
93
140
156
67
170
10.5
0.01
0.25
252.08 gsm
72
183
100
150
166
72
183
11
0.011
0.289
270.9 gsm
76
192
105
158
175
76
192
13
0.013
0.33
285.95 gsm
82
208
114
170
189
82
208
14
0.014
0.356
308.52 gsm
87
220
120
180
200
87
220
15
0.015
0.38
312 gsm
105
267
146
220
244
105
267
18
.0175
.0445
385.06 gsm
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