A structuring construction (10) for an aircraft fuselage comprises an outer skin (12) as well as a plurality of formers (14) extending at a spacing side by side crosswise to the longitudinal direction of the fuselage. According to the invention, at least a partial number of the formers comprise a main former portion (18) which is channel-like in cross section and the channel edges of which are adjacent to the outer skin (12). In a preferred development the channel space of the main former portion (18) serves to accommodate at least one supply air line which may be formed, for example, by a separate pipe line (28).