A continuity plate extends the web or flange of an incoming member that has a nodal connection, until it reaches a plate (a transition plate, a continuity plate, or a regular plate system). It is bounded by two side plates, ring plates, or insert plates, as shown in green in the following example.
The physical axis of the member is end-point connected with the physical axes of the members defining the side plates. The common end point is the nodal point. The incoming flange and web plate parts are trimmed. In the case of built-up members, the incoming flange and web parts are trimmed by the edges of the side plates. A reference member is used to choose the continuity plate, which is the nearer or further from it.