windows 2320 and doors 2330 can be part of the folded building firstly a floor panel 2340 hingedly connected to a core structure 2350 of the foldable building is unfolded the floor panel 2340 is further hingedly connected to a wall panel 2360 which typically is unfolded after the floor panel 2340 has been unfolded further wall panels 2370 and 2380 hingedly connected to the core structure are unfolded and fastened to the unfolded wall panel 2360 then the roof panel 2390 is unfolded and fastened to one or more of the unfolded wall panels fig2 is a cross sectional view of a fixed axis offset hinge 2410 with each hinge leave 2420 attached to a structural member typically structural steel member shown in an unfolded configuration typically fixed axis offset hinges such as the one shown in the drawing are attached to the structural members so that a tolerance 2420 e g u215b u2033 is provided in completely folded configuration not shown the offset hinge provides an offset which allows sufficient clearance for finish and other materials further the interior finish materials not shown attached to the frame elements can be sufficiently offset from each other to avoid direct and potentially damaging contact for example during transport the foldable building units of the present invention can be adapted to accommodate unfolding using a robust cost effective cable mechanism enabling the smooth and facile unfolding of prefabricated homes on site without the need for a crane or cranes which can be expensive and project complicating specifically foldable structural frames of the present invention can include frame elements made at least in part of materials with point load strengths.