Abstract: The retaining system for vertically stacked material is configured for use with a plurality of drywall sheets that are awaiting installation. The retaining system for vertically stacked material is a fastening device that secures the plurality of drywall sheets to a stanchion such that the plurality of drywall sheets will not fall during storage. The retaining system for vertically stacked material comprises a stanchion clip, a drywall clip, a securing strap, and a locating beacon. The stanchion clip attaches to the stanchion. The drywall clip attaches to a drywall sheet selected from the plurality of drywall sheets. The securing strap attaches the drywall clip to the stanchion clip. The locating beacon is a GPS based device that identifies the location and of the retaining system for vertically stacked material.