Located in Southeast Louisiana, Grid Structures (Grid) (www.gridstructures.com) is a new division of Southland Steel Fabricat ... ors. Grid was created to serve the Electric Utility Industry, designing and supplying steel pole structures for Transmission and Substation Applications. Grid can provide structures ranging from 12KV up to 500KV. Products include steel transmission poles, substation deadend structures such as A-frames & H-Frames, and substation equipment supports. Grid can custom design structures per customer specifications or we can fabricate your standard structures from your prints. read more