In response to queries highlighted at the “getting it right” seminar earlier this year, and with the assistance of our members we have drafted a short technical note to help raise awareness of the restrictions on minimum nib sizes between and around fire rated doorset openings.

This is designed to assist where perceptions of an industry “rule of thumb” can mislead some to believe that these types of limitations simply represent best practice, when in fact they are often a function of much stricter rules.

Technical Guidance

FIS provides a wide-range of technical guidance for its members. You can find it all within our Technical Resources Library here