Picture showing front right corner intersection where floor, front and sidewall intersect with wood structure and insulation panels filling floor voids with two layer of poly-foam cross layered with one more layer to install on floor before finish flooring is in place. The same will be done to the walls and roof. Note the steel side are hung. The same will be done to the shell on top, front, back and movable top section. This insulation is and R-57 in value. A steel clad an old "Coleman Ice chest".