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A foldable tote box is formed by a one-pierce die-cut and scored board of corrugated material, especially corrugated plastic materials. The board includes a rectangular bottom panel having a length and a width defined by pairs of side and end edges. Each of a pair of sidewall panels has a folding ed

A foldable tote box is formed by a one-pierce die-cut and scored board of corrugated material, especially corrugated plastic materials. The board includes a rectangular bottom panel having a length and a width defined by pairs of side and end edges. Each of a pair of sidewall panels has a folding edge integrally connected to the side edge of the bottom panel along a first scored folding line, a top edge and a pair of end edges that define a height of the box. Each pair of two filler beam panels are integrally connected to the end edges of one of the sidewall panels along second scored folding lines. Each filler beam panel is folded to form a hollow support beam. A pair of end wall panels are integrally connected to the end edges of the bottom panel along third scored folding lines. Each end wall panel includes an end wall section and a flap section divided by double scoring lines, thereby defining a support surface between the double scoring lines. Locking members include locking pieces and holes on the end wall panels and latch openings and tongues on the sidewall panels to lock the flap sections to the sidewall panels such that the flap section of each end wall panel holds two support beams formed against the end wall section of the end wall panel.

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[ I claim:] [1.] A foldable tote box comprising a one-pierce die-cut board of corrugated material, said board including a rectangular bottom panel having a length and a width defined by two side edges and two end edges; a pair of sidewall panels, each having a folding edge integrally connected to on

[ I claim:] [1.] A foldable tote box comprising a one-pierce die-cut board of corrugated material, said board including a rectangular bottom panel having a length and a width defined by two side edges and two end edges; a pair of sidewall panels, each having a folding edge integrally connected to one of the side edge, of the bottom panel along a first scored folding line, a top edge opposite to the folding edge, and a pair of end edges defining a width of the sidewall panel that defines a height of the box; two pairs of filler beam panels, each pair of said filler beam panels respectively integrally connected to and extended from said end edges of one of said pair of sidewall panels along second scored folding lines, each of said filler beam panels being folded to form a hollow support beam; a pair of end wall panels respectively integrally connected to and extended from the end edges of the bottom panel along third scored folding lines, each of said end wall panels including an end wall section and a flap section divided by double scoring lines, thereby defining a support surface between the double scoring lines; and integrally formed means for locking the flap sections to one of said bottom panel and sidewall panels such that the flap section of each end wall panel holds two support beams formed by said filler beam panels against the end wall section of the end wall panel, wherein said locking means comprises a pair of latch openings formed adjecent to said end edges of the side wall panel, each latch opening having a latch tongue formed therein; and a pair of locking holes formed in a pair of locking pieces extendings from side edges of each end wall panel at the flap section such that each locking hole engages each latch tongue on the sidewall panel to lock the assembled box.