The Vertical Panel Smooth Side, double-wall, end-dump trailer from Vantage Trailers is available in widths of 76, 85, 91, 96 and 102 inches. The aluminum trailers come in different designs and can be custom-built, including frameless, frame-type or quarter-frame. The standard smooth-side model consists of a single sheet, top rail and center rib. 800/826-8245; www.vantagetrailer.com.