A system, method and apparatus for forming a flex-column includes a three-sided column having a triangular cross-sectional shape, an open first end, an open second end, and three corners, each one of the three sides including a flex line dividing each of the three sides into two portions, at least one perforation along an edge of each one of the two portions wherein the edge of each one of the two portions coincides with one of the three corners and at least one non-perforation along an edge of each one of the two portions.