A transition plate joins the webs or flanges of two opposite members sharing in a nodal connection and is bounded by two side plates, ring plates, or insert plates, as shown in green in the following example..
A transition plate can also join differing profile systems of differing dimensions, as shown in green in the following example.
The physical axes of the two members are end-point connected and collinear. The common end point is the nodal point. The incoming flange and web plate parts are trimmed. For built-up members, the incoming flange and web parts are trimmed by the edges of the side plates.