Unistrut's P7001 (back-to-back solid) Channel is our 19 gauge channel that is commonly used for trapeze supports, siesmic bracing, ceiling grids, pipe, conduit, duct and cable tray supports, racks, and other general framing. For application examples, refer to our Application Showcase. Product dimensions are 13/16" wide x 13/16" tall x 19 ga. thick, solid. The advantage of a back-to-back channel is the versatile connection points and superior load capabilities. Our P7001 is available in the following finishes: Pre-Galvanized (PG), Plain (PL), Green (GR) and Aluminum (EA).