Design parameters
| Standard | EN 12845 |
| Hazard class | HHS (High Hazard Storage) |
| Design density | 7.5–30 mm/min depending on storage height |
| Area of operation | 260–300 m² |
Design notes
- Classify commodity per EN 12845 Annex B before fixing density
- Use ESFR heads for racked storage above 9 m where layout permits
- Add in-rack sprinklers for storage above the listed maximum free height
- Pump duty point sized to the most demanding remote area
Typical equipment
- ESFR K360 sprinklers
- DN150 wet alarm valve
- Diesel + electric pump set
- Hydrant ring 6 bar
How FireTwin AI handles warehouse projects
Upload your floor plan or model the building footprint directly. FireTwin AI classifies rooms, applies the EN 12845 HHS (High Hazard Storage) grid, runs the hydraulic calculation from the most remote area back to the pump, and produces a priced BOM — all re-verified on every edit.