Abstract: A panel having several concrete layers and further including a sufficient number of elongated members disposed between the adjacent layers so that the brittle characteristics of the concrete panel are minimized. Inexpensive spacing material is provided to minimize the use of concrete, maintain the weight low and improve its handling characteristics. Utility conduits are provided built in as typically found in building structures as well as reinforcing bars as the architectural design requires. The panels are designed for their ready assembly on site.