Patent ID: 8365483

Claim:
A system for constructing a housing enclosure comprising: a plurality of elongated shell members having a length and width, and at least four sides in cross section, the elongated shell members having a top, a bottom, and opposite front and back sides, the opposite front and back sides being substantially planar surfaces, the front and back sides each having a height with the height of the front side being greater than the height of the back side, the front side at an acute angle with respect to the bottom, the top and bottom defining confronting surfaces between adjacent elongated shell members, a channel formed on one of the confronting surfaces of the elongated shell members, a tongue formed on the other confronting surface of the elongated shell members, the tongue slidably received in the channel for interlocking one elongated shell member with an adjacent elongated shell member; the front sides forming a curvilinear exterior wall and the back sides forming a curvilinear interior wall of the housing enclosure when the shell members are stacked one of top of each other and interlocked, a base member disposed at a bottommost elongated shell member on either side of the housing enclosure, each base member having one joining surface to connect to the bottommost elongated shell member, and wherein the front side of an upper shell member has a portion extending over the front side of the shell member immediately below the upper shell member.