Paper weight
115 gsm paper
115 gsm paper equals 30.6 lb bond, 77.7 lb text or 42.5 lb cover. Typical uses: flyers, brochures, premium letterhead, art-book interiors. Noticeably substantial; coated versions are common for brochures.
30.6 lbbond / writing
77.7 lbtext / book
42.5 lbcover
≈ 144 µmthickness (uncoated)
Equivalent US basis weights
| Grade | Pounds | Basic sheet |
|---|---|---|
| Bond / Writing | 30.6 lb | 17 x 22 in |
| Text / Book / Offset | 77.7 lb | 25 x 38 in |
| Cover | 42.5 lb | 20 x 26 in |
| Index | 63.6 lb | 25.5 x 30.5 in |
| Bristol | 52.4 lb | 22.5 x 28.5 in |
| Newsprint / Tag | 70.7 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 | 144 µm | 5.7 pt | 353 PPI | 0.849 in |
| Bulky book paper | 172 µm | 6.8 pt | 294 PPI | 1.019 in |
| Coated (gloss/silk) | 104 µm | 4.1 pt | 491 PPI | 0.611 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 | 7.17 g | 3.59 kg |
| US Letter | 6.94 g | 7.6 lb |
What it is used for
Flyers, brochures, premium letterhead, art-book interiors. Noticeably substantial; coated versions are common for brochures.