Abstract: A building structure comprising a plurality of post (1) designed with a mainly H-shaped cross section and arranged to be located in upright position in a chute-formed base portion (3) and panel sections (2) adapted to be fitted to the posts and the base portion. The posts (1) and the base portion are provided with surfaces (7, 13) inclined at an angle of 45.degree., the panel sections (2) are provided with first flanges (17) bent in a corresponding manner and adapted after the mounting to engage against said inclined surfaces (7, 13) and during mounting when they are bent aside to slide against the inclined surfaces of the post and the base portion in order to locate a locking member (18) provided at the outer end of the flanges to engagement behind said inclined surfaces.