The Phoenix Interleaf Continuous hinge reduces the typical gap of 12mm, normally created by a traditional heavy duty continuous hinge to a sheer 3mm gap. The door and frame are completely filled by the aesthetical lines of the interleaf hinge reducing the risk of finger trapping. These hinges are CERTIFIRE approved for use on fire doors and have been successfully tested to BS EN 1935: Grade 14 (160kg).