The present invention has various types of horizontal bracing channels, longitudinal spacing-bracing channels, couplings, bracing clips, support channels, hole shapes within the support channels and orientation of the various elements that affect how wall panels are made. The structural insulating core includes the framing members and spacer blocks between the framing members that interlock together by having a structural insulating core of foam spacers with a tongue side and groove side interlocking the foam spacers between vertical metal support channels including the horizontal bracing channels, longitudinal spacing-bracing channels having notches, couplings and bracing clips connecting together.