Abstract: A building construction frame element consists of a wooden core of a single piece of wooden material provided with a thermal break formed of an insulating material extending across the heat conductance path of the element, which may be in the form of stud for a wall or ceiling. A method for producing the frame element is also disclosed.

Abstract: A stackable insulated unit for wall construction for forming a self-supporting wall structure consists of two side wooden planks spaced apart and secured to one another with an intermediate insulating layer bonded thereto, and a plurality of stud longitudinal sections transversely extending through the insulating layer and being secured thereby. The insulating layer ensures structural integrity of the stackable unit. The stud sections are preferably spaced from at least one of the side planks. The invention also includes the method of fabrication of stackable unit.