How to order
To order brackets for a 36 inch wide cabinet that is 11 inches deep (36x11). A bracket is made from 18 gauge steel that is 36 inches wide and 14.75 inches deep. A 3 inch fold (red hatch) is made to the inside. This edge gives strength and is where the bracket will be mounted to the wall. A 0.75 inch fold (green hatch) is made to the outside. This edge will be the front edge and also gives stiffness to the front edge. Three tabs (blue hatch) are spot welded that are 2 inches tall and 0.75 inches wide.
In the example above the sides are considered to be made with a 0.75 inch stock. The result (in walnut) is shown below.