Expandable Building Systems and Related Methods

A method of constructing a building at a building site, the method comprising:

• transporting, over one or more roads, one or more wall assemblies to the building site, wherein each of the one or more wall assemblies:
• comprises six or more wall segments, wherein the wall segments include at least two pivotable wall segments that are each pivotably coupled to at least one other of the wall segments such that the wall assembly is movable between:
• a folded state in which:
• at least two of the wall segments extend in a widthwise direction;
• at least four of the wall segments that include the pivotable wall segments extend in a lengthwise direction that is substantially perpendicular to the widthwise direction;
• and
• the wall assembly has an interior volume circumscribed by the wall segments;
• and
• an unfolded state in which:
• at least four of the wall segments that include at least two of the pivotable wall segments extend in the widthwise direction;
• at least two of the wall segments extend in the lengthwise direction;
• and
• the wall assembly has an interior volume circumscribed by four walls that are defined by at least six of the wall segments that include the pivotable wall segments;
• wherein:
• a width of the wall assembly, measured in the widthwise direction, is larger when the wall assembly is in the unfolded state than when the wall assembly is in the folded state;
• a length of the wall assembly, measured in the lengthwise direction, when the wall assembly is in the unfolded state is approximately the same as the length of the wall assembly when the wall assembly is in the folded state;
• and
• the wall assembly is in the folded state when the wall assembly is transported to the building site;
• for each of the one or more wall assemblies, pivoting each of the pivotable wall segments at the building site such that the wall assembly moves from the folded state to the unfolded state.