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Fire Rated Doors
FD30–FD240SteelImpact resistant

Steel Fire Doors

Steel fire doors are doorsets with a steel leaf and frame built around an insulated core. They resist impact, abuse and weather better than timber and reach longer ratings — from FD30 up to 240 minutes in some systems — which makes them the default for plant rooms, industrial units and back-of-house areas.

Guide price £1,100–£2,600 per single doorset, supplied & fitted, ex VAT. Fixed after survey.

Light grey steel personnel fire door in a commercial service corridor

Steel Fire Doors at a glance

RatingsFD30 to FD240 depending on system
ConstructionGalvanised steel leaf and frame, insulated core
FinishPolyester powder coat in RAL colours
OptionsVision panels, louvres (non-fire), panic hardware, security locking
Typical usePlant rooms, warehouses, retail back-of-house, car parks
Guide price£1,100–£2,600 per single doorset, supplied & fitted, ex VAT
Elevation drawing of a steel fire doors showing frame, intumescent seal line, hinges and hardware

Where steel beats timber

Loading bays, bin stores, car parks, plant rooms and external doors take knocks that would damage a timber leaf. Steel doorsets stay square, keep their gaps and can carry heavy security hardware. They are also the usual route to 90 or 120-minute ratings.

Finishes and options

Steel doorsets are powder-coated in almost any RAL colour. Vision panels, kick plates, panic hardware and security locking are all available — within the combinations covered by each manufacturer's certification.

Fitting steel doorsets

Steel frames are fixed into the structural opening with the anchors and gap seals the manufacturer specifies. The structural opening has to be sound and square; we check this at survey and tell you if any builders' work is needed first.

Where are steel fire doors used?

  • Plant and switch rooms
  • Warehouses and industrial units
  • Retail back-of-house
  • Car parks and bin stores

Steel fire doors questions

Are steel fire doors better than timber?

Not better — different. Steel suits heavy-use, external and high-rating locations; timber suits most internal doors.

Can steel fire doors be painted?

They are factory powder-coated. Site painting is possible but must not cover seals.

How long can a steel fire door last in a fire?

Depending on the system, from 30 minutes up to four hours.

Can steel fire doors be used externally?

Yes. Many steel doorsets are designed for external use and weathering.

Related doorsets

Steel Fire Doors near you

We supply and fit steel fire doors across the UK. Choose your area for local guide prices and the rules that apply there.

Get a fixed quote for your fire doors

Free measure survey. Certificate reference against every doorset.