About to install access door from kitchen into garage, im aware it needs to be a fire door and frame. Im unsure if it needs to be an interior or exterior door and if it requires a threshold/cill, can anyone advise please. :!:
Building Control will advise, and would think that the work is notifiable in any case, in which case a fee is payable.
Call them before starting and they will advise.
Have spoken to building control; do not need to notify for this work and no cill is required. Have advised about 30 min protection and minimum 400mm drop into garage. :D