| Size (mm) | Kg/sq mtr |
|---|---|
| 5 | 39.2 |
| 6 | 47.1 |
| 7 | 55.0 |
| 8 | 62.8 |
| 9 | 70.6 |
| 10 | 78.5 |
| 12 | 94.2 |
| 14 | 109.9 |
| 16 | 125.6 |
| 18 | 141.3 |
| 20 | 157.0 |
| 22 | 172.7 |
| 25 | 196.2 |
| 28 | 219.8 |
| 32 | 251.2 |
| 36 | 282.6 |
| 40 | 314.0 |
| 45 | 353.2 |
| 50 | 392.5 |
| 56 | 439.6 |
| 63 | 494.5 |
| 70 | 549.0 |
| 71 | 557.4 |
| 75 | 588.0 |
| 80 | 628.0 |
| 90 | 706.0 |
| 100 | 785.0 |
| 110 | 863.0 |