Today we will briefly explore rebar sizes and their typical applications.
Typical Rebar Sizes and Applications in Japan
Typical deformed rebar sizes per Japanese design practice are included below:
| Rebar | Unit Weight (kg/m) | Effective Area (mm2) | Perimeter Length (mm) |
| D6 | 0.249 | 32 | 20 |
| D8 | 0.389 | 50 | 25 |
| D10 | 0.560 | 71 | 30 |
| D13 | 0.995 | 127 | 40 |
| D16 | 1.56 | 199 | 50 |
| D19 | 2.25 | 287 | 60 |
| D22 | 3.04 | 387 | 70 |
| D25 | 3.98 | 507 | 80 |
| D29 | 5.04 | 642 | 90 |
| D32 | 6.23 | 794 | 100 |
| D35 | 7.51 | 957 | 110 |
| D38 | 8.95 | 1140 | 120 |
| D41 | 10.50 | 1340 | 130 |
※ How to Calculate Rebar Area? Explained in 1-minute
Typical applications of the above rebar sizes are shown below:
| Rebar Range | Application |
| D10 ~ D16 | Slabs, Walls |
| D19 ~ D29 | Girders, Beams |
| D29 ~ D38 | Columns |