Abstract: A signage system comprises polybag signage, and a sign holder system supporting the signage. The system includes a cross bar and rods that friction fit into aperture bosses on ends of the cross bar, thus creating a quick-erectable frame for supporting the signage. The cross bar is made of polymeric material such as reground glass filled polypropylene, and has a transverse cross section that is X-shaped or U-shaped for uniformity to facilitate molding and that resists undesired bending and length-wise distortion. The aperture bosses include crush ribs that facilitate easy installation but good retention of the rods. The pair of rods can be stored against sides of the cross bar in a dense storage position, and the polybag signage wrapped around the rods and cross bar for dense shipping and/or storage and/or display. The cross bar can also support an upper frame for additional signage.