Unistrut P5500 is commonly used for trapeze supports, seismic bracing, ceiling grids, pipe, conduit, duct and cable tray supports, rack, and other general framing. For application examples, refer to our Application Showcase. Product dimensions are 1 5/8" wide x 2 7/16" tall x 12 ga. thick, solid. Punched holes are also available for ease of installation. Our P5500 is available in the following finishes: Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL), Green (GR), Zinc Dichromate (ZD) and Aluminum (EA).