METRIC Equivalent (gsm) | Book/Text (lb.) (25" x 38") | Bond (lb.) (17" x 22") | Cover (lb.) (20" x 26") | Bristol (lb.) (22 1/2" x 28 1/2") | Index (lb.) (25 1/2" x 30 1/2") | Tag (lb.) (24" x 36") |
52 59 60 64 67 74 75 89 90 | 40 45 50 60 | 14 16 17 20 24 | ||||
104 105 118 120 133 135 147 148 | 70 80 90 100 | 28 32 36 | 50 | 67 | ||
150 162 163 175 176 178 199 | 120 | 40 | 60 65 | 80 | 90 110 | 100 |
203 216 219 243 244 253 | 80 90 | 100 | 140 | 125 150 | ||
263 270 284 300 | 100 110 | 120 | 175 | |||
308 325 351 350 400 407 | 130 150 | 140 160 | 170 | 200 250 |