Standard Size Box Culverts
- Concrete Grade – 40N/mm2
- Standard Length – 1m
- Specifications are subject to change with prior notice
Specifications
| Nominal Size (mm) | Common Dimensions | Box Culverts | ||||
|---|---|---|---|---|---|---|
| b x h (mm) | A (mm) | B (mm) | b (mm) | h (mm) | L (mm) | H1 (mm) |
| 300 x 300 | 100 | 450 | 300 | 300 | 75 | 475 |
| 375 x 375 | 100 | 525 | 375 | 375 | 75 | 550 |
| 450 x 450 | 100 | 600 | 450 | 450 | 75 | 613 |
| 600 x 300 | 140 | 750 | 600 | 300 | 75 | 503 |
| 600 x 450 | 140 | 750 | 600 | 450 | 75 | 653 |
| 600 x 600 | 140 | 750 | 600 | 600 | 75 | 803 |
| 750 x 450 | 140 | 910 | 750 | 450 | 80 | 658 |
| 750 x 600 | 140 | 910 | 750 | 600 | 80 | 808 |
| 750 x 750 | 140 | 910 | 750 | 750 | 80 | 958 |
| 900 x 450 | 150 | 1080 | 900 | 450 | 90 | 678 |
| 900 x 600 | 150 | 1080 | 900 | 600 | 90 | 828 |
| 900 x 750 | 150 | 1080 | 900 | 750 | 90 | 978 |
| 900 x 900 | 150 | 1080 | 900 | 900 | 90 | 1128 |
| 1200 x 600 | 150 | 1400 | 1200 | 600 | 100 | 838 |
| 1200 x 750 | 150 | 1400 | 1200 | 750 | 100 | 988 |
| 1200 x 900 | 150 | 1400 | 1200 | 900 | 100 | 1138 |
| 1200 x 1050 | 150 | 1400 | 1200 | 1050 | 100 | 1288 |
| 1200 x 1200 | 150 | 1400 | 1200 | 1200 | 100 | 1438 |
| 1500 x 600 | 180 | 1720 | 1500 | 600 | 110 | 878 |
| 1500 x 750 | 180 | 1720 | 1500 | 750 | 110 | 1028 |
| 1500 x 900 | 180 | 1720 | 1500 | 900 | 110 | 1178 |
| 1500 x 1050 | 180 | 1720 | 1500 | 1050 | 110 | 1328 |
| 1500 x 1200 | 180 | 1720 | 1500 | 1200 | 110 | 1478 |
| 1500 x 1350 | 180 | 1720 | 1500 | 1350 | 110 | 1628 |
| 1500 x 1500 | 180 | 1720 | 1500 | 1500 | 110 | 1778 |
| 1800 x 750 | 185 | 2040 | 1800 | 750 | 120 | 1043 |
| 1800 x 900 | 185 | 2040 | 1800 | 900 | 120 | 1193 |
| 1800 x 1050 | 185 | 2040 | 1800 | 1050 | 120 | 1343 |
| 1800 x 1200 | 185 | 2040 | 1800 | 1200 | 120 | 1493 |
| 1800 x 1350 | 185 | 2040 | 1800 | 1350 | 120 | 1643 |
| 1800 x 1500 | 185 | 2040 | 1800 | 1500 | 120 | 1793 |
| 1800 x 1650 | 185 | 2040 | 1800 | 1650 | 120 | 1943 |
| 1800 x 1800 | 185 | 2040 | 1800 | 1800 | 120 | 2093 |



