14 Gauge Welded Strut Channel with Slots PS 500 EH 2T3 (back-to-back slotted) has slots between the two profiles on the welded side. This slotted option is popular because its adjustable yet has modest load capacity loss versus the solid version. It has 85% of the capacity of the solid version of the profile. This channel is commonly used for trapeze supports, anchoring to concrete, ceiling grids, pipe, conduit, duct and cable tray supports, racks, and other general framing. For application examples, refer to our Application Showcase.