Abstract: A forming system for a hardenable material is provided having a form unit including a pair of wall panels arranged in a predetermined upright spaced relation and a skeletal grid assembly disposed therebetween. The skeletal grid assembly includes locking means for interconnecting with a grid assembly of a second form unit of like construction and disposed in side by side relation therewith.

Abstract: A concrete forming system is provided which incorporates a pair of wall panels arranged in a predetermined upright spaced relation and a skeletal grid assembly disposed between the wall panels and retaining same in predetermined upright spaced relation while concrete is being poured between the wall panels. The grid assembly is provided with a plurality of first rods arranged in spaced relation and spanning the distance between the wall panels. The ends of each first rod are disposed within preformed holes formed in the wall panels. Each rod end has a portion thereof disposed adjacent an exterior surface of a wall panel. A plurality of second rods are disposed between the wall panels and engage interior surfaces of the wall panels. The second rods interconnect with the first rods.