Abstract: A structural post is disclosed for use in a van of the type comprising an outer shell with vertical sidewalls and an interior wall surface comprising a plurality of liner panels. The structural post, used with other like structural posts, is for removably mounting the liner panels in front of the sidewalls. The structural post comprising a rear face securable to one of said vertical sidewalls, a front face for facing the interior of the van, and two longitudinally extending channels facing sidewise in opposite direction for accommodating a side edge of a liner panel. Each of the two channels has a splayed cross-section with a front wall generally parallel to the front face and a slanted rear wall facing the front wall whereby each side edge of a liner panel is insertable in either one of the two channels with the liner panel extending in bias with respect to the structural post.