A modular shipping container, comprising: an enclosure having a base opposed and spaced from a roof, each of the base and roof coupled to respective ends of opposed and spaced left and right side walls and to opposed and spaced front and back walls, the front and back walls having front and back door openings formed therein, respectively; and, front doors and back doors mounted to the front and back walls, respectively, and operable to selectively open and close the front and back door openings; wherein the front door opening and the front doors are smaller than the back door opening and the back doors, respectively, whereby the front doors are openable at least ninety degrees through a back door opening-sized access.