Floor load width, ceiling load width and roof load width are determined as the clause defines and are the inputs for the Span Tables (FLW for bearers and lower-storey walls; CLW for hanging and counter beams; RLW for wall framing and substructure); area supported (roof or floor) is the input for strutting beams, combined beams, studs under concentrated loads and posts; uplift uses the separate uplift load width of Section 9.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.