Fire Rated Door Stop Size

There are many door sizes on the market but our fire doors can from time to time include 1981x610mm 1981x686mm 1981x762mm 1981x838mm and 2032x813mm all of which are 45mm thick if 30 minute rated we then have true metric sizes these are door sizes that are all 2040mm high and are 40mm thick they include 2040x626mm 2040x726mm 2040x826mm.

Fire rated door stop size.

In addition heavy fire doors may drop by a millimetre or 2 over time and so tight fitting doors will stop closing and need to be adjusted. Fire ratings for doors are influenced by but not limited to the following items. Simpson offers thousands of choices for fire rated doors including 20 minute fire rated wood doors and mdf doors with fire ratings up to 90 minute. Frame or lining thickness would usually be tested.

How thick should my fire door frame or lining be. Fire doors were tested early seventies to bs 476 part 8 and the frame door stops was 1 inch 25mm with no intumescent seal. Door stops which assist the door in latching can be cut out of the solid frame a rebate is produced to form a stop for the door or planted. This could be achieved by fixing an addition 1 2 inch 12mm glued and screwed to the existing door stop.

Steel gage of the door example. Maximum doors size for fire ratings is influenced by but not limited to the following items. A note of warning hang the door first then fix the stops not the other way round.