be assembled using steel type connecting pins and wedges the assembled panels can then be supported by further structural members provided behind the panels when the panels are loaded due to the concrete load this load tends to further tighten the mechanical joint and to tighten the securement of the panel sections the braces positively support the rear surface of the forming face with this arrangement the seam at the junction of the hook and slot is under compression and the seam is quite small the particular arrangement shown and described allows a series of intermediary panels to be connected between the side panels and thus panels of different widths are easily produced the mechanical connection is basically the same and the number of intermediary supports may be increased furthermore it can be appreciated as shown with respect to the side panel section 4 a these side panel sections can also be of different widths and therefore the actual width of the concrete forming panel can easily be modified to meet a particular need of a contractor or a client with wider concrete forming panels it may be appropriate to also provide some tack welding of the bracing members to the various support members where they engage or pass over the bracing members the panel sections as described extend in the length of the panel however it is also possible to use shorter panel sections extending in the width this arrangement is less desirable as the number of seams increase and the.