Use Hang-Ups for invisible installation of storeWALL panels ('Archie' installation). The Hang-Ups are made from injection molded resin, and are used to hang the panels on the wall supported by the 'wedge' shaped slots in the back of each panel. Read our installation guide for more details on using Hang-Ups. Normally, Hang-Ups in three of the five slots is sufficient with 16" spaced wall studs, but all five slots can be used for maximum load capacity. With three slots used, you'll need 2.4 Hang-Ups per square foot of storeWALL, and with all five slots used, you'll need 4 HangUps per square foot.