Think outside the door! The wedging gap is defined as the space between the outside of the door frame/jamb and the surrounding wall structure.
It’s a mandatory requirement that the doorset and wall structure are viewed as integrated components, working together to create the intended safety barrier.
The New Zealand and Australian Standard and Building Code does not specify a particular maximum width for a wedging gap. However, the allowance must be in accordance with the Door manufacturers tested specimens. Ensure you clarify this with the Door manufacturer when detailing doors prior to manufacture. Any deviation could invalidate the fire rating. Bear in mind gap tolerances may differ for 30-, 60-, 90-, or 120-minute rated doors. Higher-rated systems might tolerate less variation.
Want expert guidance on tested wedging gaps? Call us today for a free consultation with one of our highly-skilled Technical Advisors and get the confidence that your project is fully compliant and performance-ready.