Reusable bulk-sized shipping box

A bulk-size shipping box configured to be transitioned between a collapsed state and an operative state for storing contents within an interior volume of the box, comprising:

• a continuous series of panels made of a substrate material and arranged to define four sidewalls of a rectangular box, wherein the sidewalls extend from a bottom end of the box toward a top end of the box in a generally vertical direction and define a hollow central cavity of the box when in the operative state, and wherein the four walls include a front wall, an opposing back wall a right wall and an opposing left wall,
• wherein each of the right wall and left wall are bisected by a vertical fold line extending in the vertical direction from the bottom end to the top end whereby the vertical folds enable the left and right walls to be collapsed inwards when transitioning the box from the operative state to the collapsed state;
• a bottom flap extending from the bottom end of a respective sidewall, wherein a lengthwise fold line defines a border between the bottom end of the respective sidewall and an adjacent end of the bottom flap, wherein the bottom flap hinges about the lengthwise fold line in at least an inward direction, and wherein the bottom flap has a width such that the it extends at least partially across an internal footprint of the box when in an operative state;
• and
• the front wall further comprising:
• a door flap, wherein the door flap is defined by two spaced apart elongate cuts through a front wall panel that extend generally vertically from a respective opposing end of a horizontal fold line to the top end of the front wall panel, and wherein the door flap hinges about the horizontal fold line in the inward direction or an opposing outward direction and thereby provides an opening through the front wall and access to the interior volume of the box, and
• a door retaining puck attached to an outer surface of the front wall, wherein a portion of the door puck that is not attached to the front wall extends across one of the two elongate cuts and an adjacent portion of the door flap thereby providing resistance against the door flap hinging outward, and wherein the door puck is configured to deflect outward when a given amount of force is applied against the door puck in an outward direction thereby enabling the door flap to be hinged outward.