Fire Door Regulations


This is a generic guide to meeting fire regulations in domestic properties and does not apply to all situations where fire doors are required i.e. (commercial buildings etc)

We also advise that you consult the building control officer at your local council before carrying out any work so they can specify their exact fire safety requirements.

All the fire doors we supply and fit meet the latest fire regulations specified by the local council.

Fire door

  • A fire door must be fire resistant for at least 30 minutes (FD30), these are usually required in domestic properties.
  • A fire door must be fitted close to the frame with a maximum gap of 5mm but 3mm is the desired working gap

Intumescent fire and smoke seal

  • Must be fitted on the top and side edges of the door. These expand during a fire and prevent excessive quantities of cold smoke to pass in the early stages of a fire and then provide a barrier to a well-developed fire.

Door Hinges

  • A fire door must be fitted with 3 hinges that meet British standards

Door frame

  • Door jambs should be screwed and glued to the door frame
  • A door jamb should meet the minimum dimensions 35mm x 25mm
  • Any gaps between the wall and frame (i.e. underneath the architrave)should be filled with fire resistant mineral wool or foam


  • Fire resistant glass should resist a fire for at least 30 minutes

Door closer

  • Fire Doors should be fitted with an effective self closing device capable of closing the door tight against the stop, overcoming the resistance of any latch or lock provided


  • A fire should be fitted with a thumb turn lock that can be locked and unlocked from the inside without a key.