Abstract: A kit for assembling a housing unit includes packaging for storing and transporting building materials. The building materials are used to assemble the housing unit. The building materials may include a door, windows, beams for forming a frame, each having pre-formed symmetric holes, and sheets of material for forming walls, a roof, and a floor. The building materials also include a plurality of fasteners for connecting the beams to one another and for connecting the door and the sheets to the beams. The building materials also include a squaring strap to ensure that the beams are situated at fixed angles. Some of the building materials may form part of the packaging. The remaining building materials, if any, are included inside the packaging for storage and transport to the desired site for the housing unit.