Abstract: System for the erection of a house structure, where upper and lower sills (2, 3) as well as studs (2) struts, girders, beams etc all being prepared at a factory for connection with each other by dowe tail like joints, all being positioned exactly according to the dimensions from a drawing of the house, therafter to be transported to the construction site and to be erected by fitting the tongue (6) of one part of a joint into a corresponding groove (5) in the other part of the joint and securing the joint after positioning the individual parts.