Abstract: Concrete forming panels according to the present invention are formed using a series of interlocking panel sections mechanically connected at a forward face of the panel. The mechanical connection uses a hook portion of one section received in a slot portion of an adjacent section with a pivot and stop relation defining the planar forming face. A series of brace members extend across the panel sections on a rear surface and maintain engagement of the panel sections and reinforce the panel sections against deformation of the forming face during use of the panel. The arrangement is economical to manufacture in many different sizes as may be required by a customer. Some welding is used, however the mechanical connection greatly reduces the amount of welding required. Replacement sections can easily be used to repair damaged panels.

Abstract: A founding chair for a founding ladder system is of a lightweight fabricated design and includes a pivotally secured top leveling plate. A ladder system for the founding chair includes a slide in engagement rack for securing of the founding chair and allowing incremental adjustment.