Abstract: A box tray has rectangular bottom wall and opposing pairs of perpendicular side and end walls. Each of the side and end walls are formed from integral extensions of the corresponding edges of said bottom wall foldable into a tubular rectilinear cross-section defined in sequence by outer panel, a top panel, an inner panel, a bottom panel and an interior panel. The interior panel when folded lies contiguous to the inner surface of the outer wall panel and is fixedly secured to it. Flaps integrally extend from the lateral ends of the outer panel of one of the paired sides and end walls so as to be fixedly inserted between the contiguous outer and interior wall panels of the other pair of side or end walls to thereby maintain the side and end walls perpendicular and at right angles to each other.