Convertible shipping container

A method of assembling a functional structure, the method comprising:

• providing a convertible container including:
• a top panel;
• a first longitudinal wall panel having a first longitudinal edge, the first longitudinal edge connected to the top panel via a hinge;
• a second longitudinal wall panel having a second longitudinal edge and a third longitudinal edge spaced apart from the second longitudinal edge, the second longitudinal edge connected to the top panel at a fixed 90-degree angle;
• and
• a bottom panel having an openable edge, the bottom panel permanently coupled to the first longitudinal wall panel and removably coupled to the second longitudinal wall panel at the openable edge;
• wherein the top panel and the second longitudinal wall panel are moveable between a first configuration and a second configuration,
• wherein there is a temporary opening disposed between the top panel and the second longitudinal wall panel as the top panel is moved from the first configuration to the second configuration, the top panel oriented on a first plane, the second longitudinal wall panel oriented on a second plane, and the first longitudinal edge and the third longitudinal edge disposed on a third plane, and wherein the first plane, the second plane, and the third plane intersect to define an empty volume having a triangular cross-section with open ends, the temporary opening defined by the empty volume, and
• wherein the second longitudinal edge is defined by a structural ridge beam oriented along an entire length of each of the top panel and the second longitudinal wall panel, the structural ridge beam connecting the top panel and the second longitudinal wall panel and rigidly holding the top panel and the second longitudinal wall panel at the fixed 90-degree angle;
• and
• lifting and rotating the second longitudinal wall panel away from the bottom panel about the hinge.