Patent ID: 7823351

Claim:
A stackable unit for wall construction, the unit comprising: first and second opposed elongate side wooden planks secured to one another with an expanded insulating core material bonded thereto, a plurality of stud longitudinal sections transversely extending through the insulating core material and being secured thereby, said insulating core material ensuring structural integrity of said stackable unit, said stud longitudinal sections being spaced from each other along said unit, each said stud longitudinal section being spaced from at least one of the first and second planks, and including a space barrier extending outwardly therefrom toward said at least one of said side planks when spaced therefrom, said space barrier substantially separating a first region adjacent said stud longitudinal section from a second region adjacent said stud longitudinal section and ensuring thermal insulation between said stud longitudinal section and said at least one of said planks, said first and second regions being on either lateral side of said stud longitudinal section between said first and second side planks.