Abstract: An extruded corner bracket is provided, the corner bracket comprising a length; a body extending the length; a pair of wings extending the length and extending outward from the body to define, with the body, an outer right angle and a pair of inner right angles, the inner right angles being normal to each other, each inner right angle having a first face and a second face; and a slot within the body and extending the length, the slot for slidably, non-rotatably retaining a nut and for housing a distal end of a bolt, the slot including an elongate opening defined by a distal edge of each first face. A corner bracket assembly, rectangular structures using the corner bracket assembly and a kit are also provided.

Abstract: An extruded corner bracket is provided, the corner bracket comprising a length; a body extending the length; a pair of wings extending the length and extending outward from the body to define, with the body, an outer right angle and a pair of inner right angles, the inner right angles being normal to each other, each inner right angle having a first face and a second face; and a slot within the body and extending the length, the slot for slidably, non-rotatably retaining a nut and for housing a distal end of a bolt, the slot including an elongate opening defined by a distal edge of each first face. A corner bracket assembly, rectangular structures using the corner bracket assembly and a kit are also provided.