Ordering your Pediment Heads &amp; Fluted Pilaster is easy. Measure the inside jamb to jamb width, select your pediment head style and pilaster width. With this jamb to jamb dimension the design system will size the pediment head and align the fluted pilasters so that there will be a 1/4&quot; reveal between the pilasters and the jamb molding. Installed in Wolcott, Connecticut