I have just inspected a fire door and the lock is the wrong size it is 250 x 20 its  longer than the specified 150 x 20  stated in the test certificate.Should the door be replaced with the correct size lock ?

1) Contact the door leaf manufacturer for advice.

2) How critical is the fire door to life safety? Would replacement provide an improvement commensurate with risk?

3) Are there alternatives to replacement in mitigating the risks around the non-compliance issue? (given that the door will need to be repaired to accept a smaller lock)

Thank you Neil

That was very helpful