Frequently Asked Questions

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What is a 'fire door'?

 A fire door is a door with a fire-resistance rating used as part  of a passive fire protection system to reduce the spread of fire and  smoke between separate compartments of a structure and to enable safe  egress from a building or structure.

How are fire doors rated?

 Fire doors and doorsets are rated in minutes and prefixed by the letters FD.


'FD' denotes the amount of time the fire door will resist fire for. ie FD30 will resist fire upto 30 minutes. In the UK the most common fire doors are either 30 minutes (FD30) or 60 minutes (FD60).

What is the difference between 'FD30' & 'FD30s'

In certain applications, the regulations may state that smoke control is  also required as an additional requirement. In these cases the fire  door will be designated by the suffix 's' and a combined intumescent and  smoke seal must be fitted

How are fire doors tested?

The building regulation relates to the entire door installation, and not  just the door alone. Because of this, fire doors are not tested as  individual leaves, but as a complete installation, along with frame,  locks, latches and other essential ironmongery. 

Which products should you buy?

Every fire door MUST be fitted to the manufacturers specifications. 


The door manufacturer will be able to advise you on the exact products needed for your door. 


Always ask your door manufacturer if they require a specific brand or rating to be fitted.


Some door manufacturers will restrict you to a brand of seal, ironmongery etc.. which could increase the overal cost of fitting your fire door.  

Got a question?

Our goal is to help you install, repair or supply fire door products suitable for your specifications. No question is too small, visit our contact us page and ask us (or find us on twitter @prod4firedoors).