| System | Standard Measures (mm) |
| Central semi-open | 250x250; 300x300; 400x400; 500x500; 600x600; 400x600 |
| Side Semi-open | 700x700; 800x800; 1000x1000; 1200x1200; 600x1000; 400x1200; 500x600; 500x800; 500x1000; 600x800; 600x1200. |
Fire Resistance: Fire rate = EI 20 --> Test repports n.º 6032/03-1; 6032/03-2; 6032/03-C1.