Suspended ceiling grid structure with main runners incorporating measurement indicia for establishing a border dimension for a engagement by a cross tee

Abstract

A measurement indicia scheme applied to a main runner of a suspended grid structure to establish a correct border distance of the main runner and between an associated wall angle and interconnecting cross runners. The main runner defines, in cross section, a tile support lip, a web extending from the support lip, and a plurality of elongated channels being formed through first and second opposite faces of the web at axially spaced apart intervals and between a first end and a second end. The measurement indicia scheme is applied to the main runner and extends from at least one of the first and second ends of the runner. The indicia scheme coincides with the placement and location of at least a first of the elongated channels positioned relative the selected and main runner end. The indicia scheme further establishes a defined distance from a second and succeeding elongated channel positioned along the main runner. The first and second elongated channels correspond, respectively, to primary and secondary reference points proximate the extending end of the runner, the measurement scheme being employed, upon selection of one of the primary and secondary reference points, to establish a correct border distance of the main runner for sectioning and prior to location of the cross runners and engagement of the connector clips, associated with the cross runners, within the main runner channels.