Sturdi-Wall brackets are made with a high strength, low alloy steel purchased domestically. The 1/4” steel plate is robotically welded insuring the highest quality. The special grade ½”or 5/8” rebar used in the Sturdi-Wall Plus models is seismic rated. All brackets are finished with a baked polyester powder coat to prevent corrosion, resist UV damage, and provide a professional look to your project.