Abstract: A system and method for constructing metal frame structures provides a framework in the form of a jig that is typically assembled at a construction site at ground level. The jig is filled with joists that are typically parallel to each other and spaced at predetermined intervals along the jig. A pair of indicator jig sections are used at either end of the grouping of joists. These indicators include a corrugated decking surface along their top. Decking sheets are laid over the joists so that they nest within the indicator decking. The decking is permanently joined to the joists, but not the indicator decking. The assembled decking and joists are lifted from the framework and positioned within a building framework. Further sections are constructed using the same technique until a or roof surface is formed over the entire framework. Utilities can be located within the assembled decking and joist framework while it is still on the ground.