It is important that the entire header-support handle the stacked weight.
| Model | Stacked | Extended |
|---|---|---|
| SL154 | 6.5 | .075 |
| SL Perf | 9 | 1.1 |
| SL Solid | 10 | 1.3 |
| Model | Stacked | Extended |
|---|---|---|
| Futura | 18 | 3 |
| Opaque | 18 | 3 |
| Paravent | 15 | 2.5 |
| Prestige | 15 | 2.5 |
| S126 | 8 | 1.3 |
| Model | Stacked | Extended |
|---|---|---|
| Futura WB | 27 | 3 |
| Opaque WB | 27 | 3 |
| Paravent WB | 22.5 | 2.5 |
| Prestige WB | 22.5 | 2.5 |
| SWB | 13 | 1.5 |