Abstract: The exterior-wall structure comprises two or more kinds of exterior panels. The two or more kinds of exterior panels have the same outline shape, the same dimensions, and the same surface texture, and, the two or more kinds of exterior panels have respectively a different number, including zero, of grooves on each surface. Each groove runs an entire length of each exterior panel continuously in a longitudinal direction of the exterior panel. The two or more kinds of exterior panels are arranged side by side to form an exterior-wall surface.

Abstract: The external material clamp comprises the fixed plate fixed to the foundation of the wall of the building, the horizontal plate extending forwardly from the center of the fixed plate, the upper support plate projected upwardly from the front end of the horizontal plate to support the upper side external wall with engagement, the lower support plate supporting the upper end of the external material 50 in the lower side with engagement, and the receiving plate at least a part of which is located above the horizontal plate to contact with the external material in the upper side with receiving a part of the load thereof. With this configuration, the load of the upper side external material is shared by the lower side external material and the receiving plate of the external material clamp.