Fire door blank trimming

[Pip1234]

Hi, I wondered if anyone knows whether you have to re-lip fire door blanks whatever you trim off them? And would they need re-lipping and strips fitting too??

[Tom Sutton]

You need the global fire risk assessment when you purchased the blanks which shows you how the blanks has to be modified to meet the required standards. Yes they will need lipping and intumescent strips depending the standard you are trying to achieve.