About Chicago Metallic T24 Hook 850
A 24mm steel exposed grid with a knuckle-jointed main runner and butt-cut hook cross tees, all 38mm high. It is the hook-type option in the Chicago Metallic range and is used where a fire-rated or higher-load grid is specified.
Key performance
| Main runner | 38 mm high x 3600 mm |
|---|---|
| Cross tee lengths (mm) | 600, 1200 |
| Reaction to fire | A1 / A2-s1,d0 (Color-all) |
| Corrosion resistance | B |
| Load bearing, 1200 mm hangers, 600 x 600 module (kg/m² at 2.5 mm / 4.0 mm deflection) | 10.9 / 18.2 |
| Load bearing, 1200 mm hangers, 1200 x 600 module (kg/m² at 2.5 mm / 4.0 mm deflection) | 12.1 / 19.8 |
| Environment | Fully recyclable |
Source: Chicago Metallic T24 Hook 850 datasheet, 12.2025. Figures quoted exactly from the manufacturer's datasheet; confirm with Rockfon before specifying.