Patent ID: 7823337

Claim:
A prefabricated structure, comprising: a shell including a shell frame comprising: a floor support including: a pair of floor beams extending lengthwise along the shell, a plurality of slotted beams extending between and transverse to the floor beams, and a floor joist extending between and transverse to the floor beams and arranged between the slotted beams; a roof support including: a first pair of roof beams extending lengthwise along the shell, and a second pair of roof beams extending between and transverse to the first pair of roof beams; and a plurality of columns extending between the floor support and the roof support; and an extension deployable from the shell, the extension including an extension frame comprising: a floor support including: a main floor beam extending lengthwise along the extension, a pair of extension floor beams extending from the main floor beam toward the shell and telescoping from corresponding slotted beams of the shell, an extension joist extending from the main floor beam toward the shell and telescoping from the floor joist of the shell; a wall base coplanar with the extension joist and gapped from the extension joist so that the wall base is received over the floor joist when the extension is seated within the shell; a roof support including: a pair of roof beams extending lengthwise along the extension, and a pair of roof joists extending between and transverse to the first pair of roof beams; and a plurality of columns extending between the floor support and the roof support; wherein the slotted beams of the shell floor support each include a slot through which a column connected between an extension floor beam and an extension roof extends when the extension is nested within the shell in an undeployed position.