Paper weight
105 gsm paper
105 gsm paper equals 27.9 lb bond, 70.9 lb text or 38.8 lb cover. Typical uses: flyers, brochures, premium letterhead, art-book interiors. Noticeably substantial; coated versions are common for brochures.
27.9 lbbond / writing
70.9 lbtext / book
38.8 lbcover
≈ 131 µmthickness (uncoated)
Equivalent US basis weights
| Grade | Pounds | Basic sheet |
|---|---|---|
| Bond / Writing | 27.9 lb | 17 x 22 in |
| Text / Book / Offset | 70.9 lb | 25 x 38 in |
| Cover | 38.8 lb | 20 x 26 in |
| Index | 58.1 lb | 25.5 x 30.5 in |
| Bristol | 47.9 lb | 22.5 x 28.5 in |
| Newsprint / Tag | 64.5 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 | 131 µm | 5.2 pt | 387 PPI | 0.775 in |
| Bulky book paper | 158 µm | 6.2 pt | 323 PPI | 0.93 in |
| Coated (gloss/silk) | 94 µm | 3.7 pt | 538 PPI | 0.558 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 | 6.55 g | 3.27 kg |
| US Letter | 6.33 g | 7 lb |
What it is used for
Flyers, brochures, premium letterhead, art-book interiors. Noticeably substantial; coated versions are common for brochures.