Abstract: A method of constructing a house of the type mounted on a pedestal. The house has exterior walls which overhang the perimeter of the pedestal on at least two sides thereof to define at least one vertically unsupported corner and is characterized by permitting the unsupported corner or corners of the house to transmit floor, wall and roof loads laterally inwardly to supporting members. The method includes the steps of constructing a pedestal to support the house above grade, and then constructing a floor truss system from a plurality of intersecting trusses mounted on the pedestal, the truss system extending outwardly beyond the perimeter of the pedestal on at least two sides to define at least one corner area not supported for vertical load transfer. Then, a floor is secured to the floor truss system, the floor being constructed of connected-together stress skin panels comprising a core of expanded polystyrene bonded to and sandwiched between relatively thin sheathing.