| NOMINAL DIAMETER (mm) | CROSS SECTIONAL AREA (cm2) | MASS PER METER kg/m |
| 6a | 0.283 | 0.222 |
| 7a | 0.385 | 0.302 |
| 8 | 0.503 | 0.395 |
| 9a | 0.636 | 0.499 |
| 10 | 0.785 | 0.616 |
| 12 | 1.131 | 0.888 |
| 16 | 2.011 | 1.579 |
| 20 | 3.142 | 2.466 |
| 25 | 4.909 | 3.854 |
| 32 | 8.042 | 6.313 |
| 40 | 12.566 | 9.864 |
| 50 | 19.63 | 15.4 |
a Preferred diameters for the manufacture of welded fabric to BS 4483 only.