The system have individual capacities ranging from 225 kN to 700 kN.
By optionally using BSF connectors in pairs, loads of up to 1400 kN can be catered for.
| Type | Description | Capacity | Minimum beam dimension |
| BSF 225 | Beam Column connection | 225 | 190 x 370 |
| BSF 300 | Beam Column connection | 300 | 190 x 420 |
| BSF 450 | Beam Column connection | 450 | 190 x 440 |
| BSF 700 | Beam Column connection | 700 | 310 x 500 |
| BSF 450 x 2 | Beam Column connection | 900 | 350 x 440 |
| BSF 700 x 2 | Beam Column connection | 1400 | 600 x 500 |
| BSF 1100 | Beam Column connection | 1100 | 310 x 590 |