Our Steel Support brackets can be used for counter top supports, mantles or shelf supports. They are made in the USA with only high quality USA made steel. These are cut from 3/8" thick hot rolled P&O steel on our CNC and then TIG welded. Available Bare steel, satin black or textured black. They can be mounted to wood, concrete or steel. Standard size as shown is 10"x10" but they can be made any size you need. Several other designs are available as well as customs upon request. (See last pic) If you can dream it we can build it when it comes to Architectural Hardware.