A securement mat for mitigating the migration of loads within a shipping vessel. The securement mat having a length, a width, and a height, and including a first subsection and a second subsection, wherein an area of the second subsection is less than an area of the first subsection. The securement mat has a first fold boundary along the length or width of the sheet and proximate to one edge of the sheet defining a boundary between the first and second subsection, wherein the first subsection exhibits a first incline by folding, along the first fold boundary, the second subsection underneath the first subsection. The securement mat also has a notch on each end of the first fold boundary to facilitate folding of the second subsection under the first subsection.