Abstract: A ceiling system for a small building includes panels that span the space between the side walls of the building and rest on end caps that extend over the upper edges of the walls for the building. The end caps have upwardly directed sections which, along with facia trim strips, obscure the peripheral surfaces of the panels. Each panel includes a surrounding metal frame having inwardly turned flanges and a composite filler member formed from an upper protective layer, a lower decorative layer, and an intermediate insulating layer. The sides of each frame are configured to interlock the panel of that frame with the frames of the adjacent panels, and are further configured to enable the panels to pivot into interlocking engagement.

Abstract: A wall structure is composed of interlocked components which are joined together by pivoting one component relative to the next until the two components snap into interlocking engagement. The components may take the form of wall panels, corner posts, wireways, or the like. In the case of wall panels, each has a side member that includes a web along the side edge of the panel and flanges projecting outwardly from the web. One flange on each web is a pivot flange and the pivot flange of the one side member has a rib, while the pivot flange on the connected side member has a groove which receives the rib. This enables the two side members as well as the wall panels of which they are part, to pivot relative to each other about an axis that is fixed with respect to those wall panels. One of the side members also has a retaining flange which projects outwardly from its web, while the other side member has a connecting flange which projects outwardly from its web.