Patent ID: 8266862

Claim:
A prefabricated component as either a wall panel or a floor panel, comprising: a rectangular concrete section comprising a projection along a first side, a recess along a second side opposite the first side, the recess being complementary to the projection, a protrusion along a first end, a trough along a second end opposite the first end, the trough being complementary to the protrusion, a plurality of channels each having an end terminating at the first end and another end terminating at the second end, a first groove on each of the first end and the second end extending from the first side to the second side by passing mouths of the channels, and a second groove on each of the first side and the second side extending from the first end to the second end; a rectangular surface board formed integrally with an outer surface of the concrete section wherein a first portion joining a first end of the surface board and the concrete section is uneven, a second portion joining a second end of the surface board and the concrete section is uneven, a third portion joining a first side of the surface board and the concrete section is uneven, a fourth portion joining a second side of the surface board and the concrete section is uneven; a plurality of steel posts forming a reinforcing mesh disposed in the rectangular surface board and the rectangular concrete section; and an interconnection comprising a transverse part and a plurality of spaced longitudinal tubes each adapted to fit into the channel to connect at least two adjacent prefabricated components together.