Fire · EI 30 to EI 120
Fire rated doors
Fire rated doors for UK buildings: steel doorsets from EI 30 to EI 120, tested to EN 1634-1. Fire and security combinations supplied and installed.
- ✓Third-party test evidence with every product
- ✓Written specification you can issue to tender
- ✓Supplied and installed across the UK
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Fire and security doors
Fire and security doors: one steel doorset with a fire rating and an LPS 1175 forced entry rating. For secure… View details →
Fire rated louvre doors
Fire rated louvre doors to E 60 and E 90 for ventilated plant rooms and risers. Steel construction, tested to… View details →
Fire rated steel doors
Fire rated steel doors from EI 30 to EI 120, tested to EN 1634-1 under the LPS 1056 scheme. Supplied… View details →
Thermally broken doors
Thermally broken security doors with low U-values and an LPS 1175 rating. Steel doorsets for heated UK buildings that also… View details →
Fire rated doors hold back fire and smoke long enough for people to escape and for the building to stay compartmented. ArxBridge supplies and installs steel fire doorsets across the UK, from EI 30 to EI 120, tested to EN 1634-1.
- EI 30 to EI 120Integrity and insulation classes
- EN 1634-1The fire resistance test standard
- LPS 1056The LPCB certification scheme
- E, EW, EIIntegrity, radiation and insulation
How fire ratings work
Fire doors are tested to EN 1634-1, which exposes one face of the doorset to a furnace following a standard time-temperature curve. The result is a classification: E for integrity, meaning the door stays whole and stops flames and hot gases; EW for integrity plus limited radiation; and EI for integrity plus insulation, meaning the unexposed face stays within the standard’s temperature limits.
The number is the minutes the door held its classification: 30, 60, 90 or 120. An EI 60 door holds integrity and insulation for an hour; an E 30 door holds integrity for half an hour. The fire strategy for the building, drawn up by the fire engineer, sets which rating goes in which wall.
LPS 1056 is the LPCB scheme under which fire doors are certified: it covers the manufacture, not just a one-off test, so every door off the line matches the tested design. Always ask whether the doorset is supplied under a recognised certification scheme, and check the fire ratings guide for the full classification table.
Rating follows the wall. The door rating must match the compartment wall it sits in. A high-rated door in a low-rated wall protects nothing.
Choosing the right fire product
Start from the fire strategy: it names the classification and the minutes for each opening. The product then follows from what else the opening needs: ventilation, forced entry resistance, thermal performance, or nothing beyond the fire rating itself.
| Product | Rating | Fitted where |
|---|---|---|
| Fire rated steel doors | EI 30 to EI 120 | Compartment walls and escape routes |
| Fire rated louvre doors | E 60 and E 90 | Plant rooms that need ventilation |
| Fire and security doors | Fire plus LPS 1175 | Secure areas inside fire compartments |
| Thermally broken doors | Low U-values with security rating | Heated buildings needing rated external doors |
Who specifies fire doors
Architects place them on the drawings from the fire strategy. Fire engineers write the strategy: which walls compartment, which doors protect escape routes, which need insulation as well as integrity. Building control checks the schedule against the regulations. Main contractors procure and install; facilities teams own the inspection regime for the life of the building.
Fire doors appear in every sector ArxBridge serves: healthcare corridors, education stairwells, data centres plant rooms, high-value retail stock areas. The full range sits under Products, alongside the Security and Blast groups for combined requirements.
What does E mean compared with EI?
E means integrity: the door keeps flames and hot gases from passing through. EI adds insulation, so the unexposed face stays within the temperature limits set by the standard. Escape routes often need EI, since people pass close to the door, but the fire strategy makes the call.
Do fire doors need to be certified?
A fire door should be supplied under a recognised certification scheme such as LPS 1056, with the rating on a permanent label on the door. An unlabelled door cannot be shown to match its test, and building control may reject it.
Can a fire door also be a security door?
Yes. Fire and security doors carry both a fire classification and an LPS 1175 forced entry rating in one assembly, each with its own test evidence.
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