Abstract: A building device is provided which is particularly useful for building small houses, garages and shelters. The device includes a frame for abutting the ground which is contoured in the section to permit the positioning of vertical panels there against. There are essentially two different types of panels, each of the panels having transverse edges with complementary contours arranged vertically in order to permit their combined dissembly in juxtaposition at either an angle of 180 degrees or 90 degrees. A chaining is provided atop the panels and is conformed to cooperation with the upper portion of the panels and once in position serves as a peripheral reinforcing belt around the panels and permits the direct mounting of roofing elements or superimposed panels there against.