Abstract: A post coupler having a top end portion and bottom end portion, a first body portion and a second body portion. Each body portion having an inner edge, an outer edge, a reverse flange, and a post stop. Each reverse flange forms a post receiving slot, and each post stop extends towards its respective body portion. The first and second body portions are coupled to each other at approximately 90 degrees. A method of using the post coupler comprises the steps of a) providing a first post section and a second post section, b) inserting the first post section along the post receiving slots until the first post section abuts one side of the post stops, and c) inserting the second post section along the post receiving slots until the second post section abuts an other side of the post stops.

Abstract: A middle shelf installation tool is disclosed for use in combination with a pair of upstanding corner posts during the assembly of a boltless shelving system. Upper and lower sets of hingedly connected corner post surrounding members are spaced one above the other so as to extend across the top and bottom of the installation tool. The installation tool is wrapped in surrounding engagement around the bottom of an upper one of the pair of corner posts and the top of the lower one of the pair. The installation tool forms a splice to hold the upper and lower corner posts in axial alignment one above the other to facilitate the location by a single individual of a middle shelf at the intersection between the corner posts to lie between upper and lower shelves of the system. Once the middle shelf has been installed, the installation tool is pulled off and removed from the corner posts.