Abstract: A knockdown building with a floor made up of several panels having a core of insulation material and structural members extending around the periphery of the core made of wood and received between the plywood of the floor panels in which a simple angle iron frame coupled with the strength of the peripheral wooden structural members provides the strength necessary for handling and tailgating a building. The roof is flat and buildings may be stacked directly one upon the other with force transmitted directly through structural members to the angle iron skid. Due to the flat roof, several buildings may be stacked directly one upon the other eliminating the need for stacking racks and due to the simple angle iron skid replacing the massive oil field-type skid of past construction the cube for a building prepared for shipment is drastically reduced.

Abstract: A dwelling in which the utilities are built around a small core room with a bath arranged to either side of the core room and a kitchen arranged adjacent one bath so that all sewer lines may extend from the various facilities to a main single sewer line in the core. The core also provides for a water heater, air conditioning equipment, as well as water lines to the various facilities.

Abstract: A fixture core including plumbing for a building in which all of the fixtures are either permanently or temporarily supported from the side walls of the core and the core is transported on a shipping pallet which served as a template for the erection of the core and the fixtures and is removable when the core reaches the job site so that the fixture core may be removed from the pallet, if desired, and supported directly upon the floor or slab of a building in which the core is to be installed.

Abstract: A prefabricated building in which utilities are provided for in a core unit in which ceilings are provided by prefabricated panels and in which the panels are tied to roof trusses.