Spans are calculated based on the following applied loadings, any additional loadings will reduce the maximum spans shown:
| Depth | WS200 - 195mm | WS200 - 219mm | WS250 - 254mm | WS300 - 304mm | WS400 - 417mm | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Spacing | 400 | 600 | 400 | 600 | 400 | 600 | 400 | 600 | 400 | 600 |
| 72mm | 1950 | 1550 | 3150 | 2350 | 3450 | 2450 | 3550 | 2550 | 3750 | 2450 |
| 97mm | 2750 | 1850 | 3650 | 2750 | 4150 | 2950 | 3850 | 3050 | 3950 | 2650 |
| 122mm | 3150 | 2250 | 4050 | 2850 | 4250 | 3050 | 4050 | 3250 | 4150 | 3050 |
| 147mm | 3650 | 2650 | 4100 | 2900 | 4300 | 3100 | 4250 | 3550 | 4300 | 3150 |
| Width | Approximate Maximum Span (mm) | |||||||||