Building system

An assembly for a flooring support structure of a prefabricated or factory made building, the flooring support structure including a foundation, a floor deck above the foundation, and an outer structural support beam between the foundation and floor deck, the outer structural support beam running parallel to a first peripheral edge of the flooring support structure, the assembly comprising:

• a vertical plate bordering the first peripheral edge of the flooring support structure in perpendicular alignment to the flooring support structure;
• and
• a floor joist assembly coupled between the outer structural support beam of the flooring support structure and the plate,
• wherein the flooring support structure supports a wall framing structure,
• wherein the floor joist assembly is positioned below the wall framing structure and provides continuous open space in the flooring support structure which extends in a vertically uninterrupted path through an area of the flooring support structure located directly below the wall framing structure to enable utility components to be contained within and run down through a cavity of the wall framing structure and the continuous open space in said area of the flooring support structure directly below the wall framing structure to a crawl space below the flooring support structure in a vertically straight path,
• wherein the outer structural support beam is one of a plurality of structural support beams that run parallel to said first peripheral edge, the outer structural support beam being the beam closest to the first peripheral edge,
• wherein the outer structural support beam is laterally distanced from the wall framing structure and the vertical plate at the first peripheral edge to allow for said continuous open space,
• wherein the continuous open space has an uninterrupted width which is greater than the width of the cavity of the wall framing structure, and
• wherein the assembly is an integral component of the prefabricated or factory made building and is movable with the prefabricated or factory made building.