Paper weight
157 gsm paper
157 gsm paper equals 41.8 lb bond, 106.1 lb text or 58.1 lb cover. Typical uses: posters, brochure covers, photo books, art prints. Heavy text weight; folds may need scoring on coated stock.
41.8 lbbond / writing
106.1 lbtext / book
58.1 lbcover
≈ 196 µmthickness (uncoated)
Equivalent US basis weights
| Grade | Pounds | Basic sheet |
|---|---|---|
| Bond / Writing | 41.8 lb | 17 x 22 in |
| Text / Book / Offset | 106.1 lb | 25 x 38 in |
| Cover | 58.1 lb | 20 x 26 in |
| Index | 86.8 lb | 25.5 x 30.5 in |
| Bristol | 71.6 lb | 22.5 x 28.5 in |
| Newsprint / Tag | 96.5 lb | 24 x 36 in |
Estimated thickness and pages per inch
| Paper type | Caliper | Points (mil) | Pages per inch | Spine for 300 pp |
|---|---|---|---|---|
| Uncoated offset | 196 µm | 7.7 pt | 259 PPI | 1.159 in |
| Bulky book paper | 236 µm | 9.3 pt | 216 PPI | 1.391 in |
| Coated (gloss/silk) | 141 µm | 5.6 pt | 360 PPI | 0.834 in |
Caliper ≈ grammage × bulk. Ask your printer for the measured caliper of the actual stock.
Sheet and ream weights
| Sheet | One sheet | Ream (500 sheets) |
|---|---|---|
| A4 | 9.79 g | 4.9 kg |
| US Letter | 9.47 g | 10.4 lb |
What it is used for
Posters, brochure covers, photo books, art prints. Heavy text weight; folds may need scoring on coated stock.